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Aug 08, 2013, 11:26 AM
Elfi Flyer
Doug Sipprell's Avatar
Quote:
Originally Posted by bhoov128 View Post
I would wager it was not broken, it was simply an incomplete injection mold that wasn't caught during QC.
I had the same precise failure in a Champ gearbox, following the installation of a Mustang motor. The failure didn't happen immediately, instead, several flights after the motor change out. I attribute the failure to a weak piece in the gearbox, and my possibly having been a bit heavy handed in the motor swap. I installed a new gearbox, after having more carefully inserted the Mustang motor in the new gearbox while it was outside of the plane, and had no problems there after with this "strap" breaking. Unfortunately, Champ #1 was lost due to pilot stupidity, after having provided 114 great flights! The loss is still grieved to this day.

RD
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Aug 08, 2013, 07:45 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
Quote:
Originally Posted by Mark Perry View Post
Me again
After further research on my own question about mounting the 5043 prop, I thought I'd post these links in case anyone else wanted to know how to.
By the look of the video, this GWS spinner pack just screws on like the stock prop does.

http://www.wheelspinmodels.co.uk/i/88566/

Video is here
http://www.youtube.com/watch?v=Bh6_JUTG0A0

Mark.
There are various adapters for putting the small GWS props on small shafts like the Champ's. Some of GWS's spinners are intended to be used for this. Be aware they come with various size shaft holes... the ones I ordered from one particular online vendor are the wrong ones but I might try to mod them to work... if they won't balance perfectly afterward I won't be using them. More on this later when time permits.
Aug 09, 2013, 12:00 AM
Registered User
Quote:
Originally Posted by Nighthawk74 View Post
I work with plastic injection machines, and being the "shoot--->QC--->Count-->box--->deliver to shipping area guy" I can tell you that WE DO CHECK $0.10 parts.
I'm guessing these parts are designed in America, produced in China. Maybe HH should crack the whip overthere
Sure you do, and any reputable manufacturer would. But, think back to the time just after WWII when Japan was trying to get back on it's manufacturing-feet, and the label "Made in Japan' was synonymous with 'This is Crap.' It took a generation to bring that around and now they design and manufacture some of the most spectacular high tech in the world.

(The real error with the *design* of that part was that they didn't fillet the inner angles. With that none would break or split.)

China has been, for example, the world's supplier of clothes for about a generation. That's a little lower tech, and they can cut a few corners and get away with it. Lately they're trying to get into high tech, yet they're still cutting corners. For example Orange came out with a Futaba compatible (read 'we stole this,' but that's another story LOL!) 8-ch receiver. The Futaba part is ~$140 and the Orange is $30. So a guy orders 10 of them. Brand new, right out of the box, 4 of them failed. (I don't recall that he named the exact failure.) That's a **40%** failure rate at the end of the assembly line, *AND* demonstrates that there was no functional final test. Outrageous? Of course. Will it teach them a lesson? Maybe, maybe not, because the joke around the conference table is 'Pet Rocks? Those crazy Americans will buy *anything*.' Again, the 'broken wing in the box' anecdote. So far they're getting away with it.
Aug 09, 2013, 12:27 AM
Registered User
Quote:
Originally Posted by Doug Sipprell View Post
I had the same precise failure in a Champ gearbox,
Wow I'm glad I added that caveat that if it happened once it's not impossible to happen again. LOL!!!

Quote:
I attribute the failure to a weak piece in the gearbox, and my possibly having been a bit heavy handed in the motor swap.
Heavy handed, ridiculous. Nylon is *EXTREMELY* strong. It's definitely a weak design, that they didn't fillet the angles. Also possible that it's substandard material. Also possible that they ran the injection too fast or at some wrong temperature(s) that helped the design flaw to fail even earlier.
Aug 09, 2013, 08:50 AM
RC addict? I'm not addicted...
Nighthawk74's Avatar
Nylon is strong. There is a reason Zip Ties are made of nylon.

As long as the chinese are skipping QC, there will still be business for the rest of us So it's not all bad. Still is frustrating getting a broken wing in the box. That usually takes several flights with the Champ
Aug 10, 2013, 05:41 AM
The figure "9" Specialist
aeronca's Avatar
Quote:
Originally Posted by Mark Perry View Post
Me again
After further research on my own question about mounting the 5043 prop, I thought I'd post these links in case anyone else wanted to know how to.
By the look of the video, this GWS spinner pack just screws on like the stock prop does.

http://www.wheelspinmodels.co.uk/i/88566/

Video is here
http://www.youtube.com/watch?v=Bh6_JUTG0A0

Mark.
Great explanation and tutorial Mark, and your video really is most helpful in clearly showing your methods! (I like your homemade stand as well!) Job well done!

Aeronca
Aug 10, 2013, 11:32 AM
Eazy does it !!!
Mark Perry's Avatar
Quote:
Originally Posted by aeronca View Post
Great explanation and tutorial Mark, and your video really is most helpful in clearly showing your methods! (I like your homemade stand as well!) Job well done!

Aeronca
Hi Aeronca.
I think a big "oooops" is in order
Maybe I should have explained better in my previous post.....
That's not me, It's just a video I found whilst doing my research into fitting the prop.
But I totally agree with you, it is a great tutorial and next time I receive a package with lots of polystyrene in, I'll be making one of those stands

Mark.
Aug 10, 2013, 11:53 AM
Custom User Name Title
bhoov128's Avatar
I made one of the CG machines for micros

Ben
Aug 10, 2013, 12:29 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
Quote:
Originally Posted by North_of_49 View Post
There are various adapters for putting the small GWS props on small shafts like the Champ's. Some of GWS's spinners are intended to be used for this. Be aware they come with various size shaft holes... the ones I ordered from one particular online vendor are the wrong ones but I might try to mod them to work... if they won't balance perfectly afterward I won't be using them. More on this later when time permits.
The adapters for GWS props are all listed on Joe's blog. He added the spinner from RC Funlab on my suggestion but I later found out the shaft hole on this one is not for 1.5mm so it's too loose on a Champ motor... I let him know and he was going to edit his post but hasn't yet. There's a part # for the GWS tree of 6 spinners (only 2 on the tree can be used) if you want to source it elsewhere, I can look it up if anyone's interested.

https://www.rcgroups.com/forums/show....php?t=1361812



In his blog post, those wooden inserts you see linked to at Radical RC can probabably easily be made on a Dremel they way I made some scale rims for some bushwheels I made...

http://www.radicalrc.com/category/Pr...ft-Adaptors-36


Aug 11, 2013, 09:05 AM
Epilepsy Awareness
Flying High Mike's Avatar
Ben, I like your CG set-up Gotta love the KISS method Is that a channel changer I see as a counter weight? Another great KISS method

Mike.
Aug 11, 2013, 10:17 AM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by Chap1012 View Post
Ben, I like your CG set-up Gotta love the KISS method Is that a channel changer I see as a counter weight? Another great KISS method

Mike.
Yep, two tv remotes as counter weight. To be honest I stole this idea from a post I'd seen where the bamboo sticks were stuck into the box foam for the Beast 3d, making the whole thing portable. My bamboo sticks kept slopping around in the holes and making it difficult for me, so gluing them in wasn't an option or I wouldn't be able to close the box

Ben
Aug 12, 2013, 11:12 AM
"Some do, some don't"
old_coastie's Avatar
Quote:
Originally Posted by HeliRick View Post
I love my Champ, but unless the wind it really light it is a challenge to fly.
Anyone have any suggestions for an easy to fly plane that does a lot better in more wind?
I also have a Dynam Hawk Sky but it is kind of wind challenged as well - but not like the Champ.

Rick
Just reading thru the Champ thread and came across your post. If you are ready for a "kit build" I can strongly recomend the following.

West Michigan Park Flyers "Tuff Cub"

http://www.wmparkflyers.com/tuff-p-82.html

Not only does this plane handle wind well, actually it's a "blast" to fly in the wind.

There are probably 100's of planes out there that will meet your needs/wants and I hope that you find the one you are looking for. I can recomend the Tuff Cub because that is one of the planes that I fly on a almost daily basis.
Aug 14, 2013, 04:06 AM
Registered User
Ok after reading the thread bought one...

Flew it couple of times and can't believe how easy it was....got cocky....tried inverted flight....put it in a tree..and had to leave it there for three days!

Finaly got it out and even after spending 2 nights in the rain, it's still flying like nothing has happened!

Starting to love my champ!
Aug 14, 2013, 07:49 AM
"Some do, some don't"
old_coastie's Avatar
Quote:
Originally Posted by Shortlife085 View Post
Ok after reading the thread bought one...

Flew it couple of times and can't believe how easy it was....got cocky....tried inverted flight....put it in a tree..and had to leave it there for three days!

Finaly got it out and even after spending 2 nights in the rain, it's still flying like nothing has happened!

Starting to love my champ!
Inverted flight with Champ

I would really love to see that.

Your three days in a tree beats my 5 hours on school roof (Took that long to find a ladder tall enough to reach )

Welcome to the "Super Champ" communitiy....

old_coastie
Aug 14, 2013, 08:52 AM
No place like cloud base......
SuperBarlow's Avatar
Quote:
Originally Posted by old_coastie View Post
Inverted flight with Champ

I would really love to see that.

Your three days in a tree beats my 5 hours on school roof (Took that long to find a ladder tall enough to reach )

Welcome to the "Super Champ" communitiy....

old_coastie
I can fly inverted for a while- I'll try to get video.
Aug 14, 2013, 09:26 AM
Custom User Name Title
bhoov128's Avatar
Half a loop gets you inverted, or half a snap roll, it takes quite a bit of down elevator, and remember that rudder is reversed when you're upside down

Ben
Aug 14, 2013, 10:43 AM
Registered User
SSgt Baloo's Avatar
Quote:
Originally Posted by bhoov128 View Post
...and remember that rudder is reversed when you're upside down

Ben
I always do -- right after I give an erroneous rudder command.
Aug 14, 2013, 11:22 AM
Registered User
JLT_GTI's Avatar
Quote:
Originally Posted by bhoov128 View Post
Half a loop gets you inverted, or half a snap roll, it takes quite a bit of down elevator, and remember that rudder is reversed when you're upside down
Not in this case... in dihedral planes rudder produces roll.. so when doing inverted flight in dihedral planes the rudder actually works more like ailerons so it works the same..

Not optimal but the roll certainly will induce more turning than what the rudder itself... thats why inverted with dihedral-rudder planes is messy..but you definitily fly them like ailerons
Aug 14, 2013, 11:34 AM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by JLT_GTI View Post
Not in this case... in dihedral planes rudder produces roll.. so when doing inverted flight in dihedral planes the rudder actually works more like ailerons so it works the same..

Not optimal but the roll certainly will induce more turning than what the rudder itself... thats why inverted with dihedral-rudder planes is messy..but you definitily fly them like ailerons
.... snap roll ....
Aug 14, 2013, 12:10 PM
Registered User
JLT_GTI's Avatar
is snap roll because if you try a "slow roll" you would fall out of the sky before completing the maneover... but rudder coupling induces roll same as ailerons..

Ask EasyStar guys how they fly theys "aileronless" EZs upside down
Aug 14, 2013, 12:13 PM
Custom User Name Title
bhoov128's Avatar
I have no idea what you're arguing here. Half a snap roll, or half a loop, takes you inverted; once inverted if you want to bank and turn left then you have to input right rudder and vice versa. I do it all the time.

Ben
Aug 14, 2013, 01:13 PM
"Some do, some don't"
old_coastie's Avatar

Inverted Flight


Quote:
Originally Posted by SSgt Baloo View Post
I always do -- right after I give an erroneous rudder command.
Heard this at the field the other day and almost choked on my coffee I was laughing so hard....

"When flying inverted up is down and down is expensive"

old_coastie
Aug 14, 2013, 02:40 PM
Custom User Name Title
bhoov128's Avatar
Good guy here on the forum with the handle of "whichwaysup" has his saying under his avatar set to: "when down=up, up=expensive"

Ben
Aug 14, 2013, 09:10 PM
Custom User Name Title
bhoov128's Avatar
mgdon, I have the AS3X programming software working properly on Windows 7. I'll be putting up a guide on my blog of how I did it.

Blog procedure is up! Hopefully it's easy enough to follow to let you get your programmer working with your AS3X brick on Windows 7.

Ben
Last edited by bhoov128; Aug 14, 2013 at 10:32 PM.
Aug 16, 2013, 07:07 AM
Registered User
Quote:
Originally Posted by old_coastie View Post
Inverted flight with Champ

I would really love to see that.

Your three days in a tree beats my 5 hours on school roof (Took that long to find a ladder tall enough to reach )

Welcome to the "Super Champ" communitiy....

old_coastie
Thank you Old_coastie....

I had to go abroad so I had to leave her...It was a difficult descision

Inverted flight isn't as difficult as you would imagine, as stated...half a loop will do the trick. The up and down part is the difficulty..

Can't wait for the wind to die down here so I can fly her today!
Aug 16, 2013, 12:07 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
I can get mine inverted for a while from half a loop. I saw a vid on YT of someone doing it alot longer than my "a while"... pretty sure it just stock too.
Aug 16, 2013, 12:32 PM
Eazy does it !!!
Mark Perry's Avatar

HELP......I'm confused !!!


Hi guys.

I just bought a 500ma lipo in order to get some longer flight times on my Champ.
I have read that this little plane is quite sesnitive to the changes in the COG so knew that I would have to mount it further back than my 160 Hyperions.
Just out of curiosity, I put the heavier lipo in the battery bay in the same position as the 160s to see the difference.......
It balanced
I have yet to enlarge the battery bay and put in another elastic band so excuse the picture.
Just wondered if anyone had any thoughts on why this would be.
Anything to do with the larger wheels I have on it (only 2 grams each tho).
Any input from you would be interesting
(and yes....they are 2 chopsticks put into the Champ box )
Aug 16, 2013, 12:43 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
I don't see why it wouldn't balance. If anything it would need to go more forward, not farther back because the extra length would shift the weight aft if it it had no way to sit forward (because of the design of the cavity) to split the extra weight 50/50. But, because of where the ideal CG is supposed to be, it doesn't surprise me that it just works out.
Last edited by North_of_49; Aug 16, 2013 at 12:49 PM.
Aug 16, 2013, 12:50 PM
"Some do, some don't"
old_coastie's Avatar

Champ Inverted Flight


Quote:
Originally Posted by North_of_49 View Post
I can get mine inverted for a while from half a loop. I saw a vid on YT of someone doing it alot longer than my "a while"... pretty sure it just stock too.
That's just the problem, mine hasn't been stock since like day two????

Although I have to admit that I have a brand new Champ sitting in box, never flown, no (weight crippling) MODS.....

What to do, what to do...

Some pics of "Fat Champ"
Aug 16, 2013, 12:53 PM
Eazy does it !!!
Mark Perry's Avatar
Ah right, yes that would make sense (can you tell I'm on a steep learning curve )
I just thought the difference in weight would make a change in the cog.
An extra 13 grams when the AUW is 38 grams is quite a bit !

Cheers,
Mark.
Aug 16, 2013, 12:56 PM
"Some do, some don't"
old_coastie's Avatar

Champ COG w/500


Quote:
Originally Posted by Mark Perry View Post
Hi guys.

I just bought a 500ma lipo in order to get some longer flight times on my Champ.
I have read that this little plane is quite sesnitive to the changes in the COG so knew that I would have to mount it further back than my 160 Hyperions.
Just out of curiosity, I put the heavier lipo in the battery bay in the same position as the 160s to see the difference.......
It balanced
I have yet to enlarge the battery bay and put in another elastic band so excuse the picture.
Just wondered if anyone had any thoughts on why this would be.
Anything to do with the larger wheels I have on it (only 2 grams each tho).
Any input from you would be interesting
(and yes....they are 2 chopsticks put into the Champ box )
Ok I'm not picking, and if plane flys the way you want then forget that I said anything, but on the last picture looks to me like a little bit nose heavy??
Aug 16, 2013, 01:05 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
Quote:
Originally Posted by Mark Perry View Post
Ah right, yes that would make sense (can you tell I'm on a steep learning curve )
I just thought the difference in weight would make a change in the cog.
An extra 13 grams when the AUW is 38 grams is quite a bit !

Cheers,
Mark.
But it's hung more or less right under the CG point
Aug 16, 2013, 01:06 PM
Epilepsy Awareness
Flying High Mike's Avatar
Quote:
Originally Posted by old_coastie View Post
Ok I'm not picking, and if plane flys the way you want then forget that I said anything, but on the last picture looks to me like a little bit nose heavy??
I caught that too.

Mark,Any chance of a side pic?

Mike.
Aug 16, 2013, 01:08 PM
"Some do, some don't"
old_coastie's Avatar

One more comment and then I will shut up..


Quote:
Originally Posted by Mark Perry View Post
Hi guys.

I just bought a 500ma lipo in order to get some longer flight times on my Champ.
I have read that this little plane is quite sesnitive to the changes in the COG so knew that I would have to mount it further back than my 160 Hyperions.
Just out of curiosity, I put the heavier lipo in the battery bay in the same position as the 160s to see the difference.......
It balanced
I have yet to enlarge the battery bay and put in another elastic band so excuse the picture.
Just wondered if anyone had any thoughts on why this would be.
Anything to do with the larger wheels I have on it (only 2 grams each tho).
Any input from you would be interesting
(and yes....they are 2 chopsticks put into the Champ box )


Nose heavy beats tail heavy... every day of the week and twice on Sunday...

read somewhere on RCForum;

"A plane that is nose heavy will fly badly, a plane that is tail heavy will fly once
Aug 16, 2013, 01:16 PM
"Some do, some don't"
old_coastie's Avatar
Quote:
Originally Posted by Chap1012 View Post
I caught that too.

Mark,Any chance of a side pic?

Mike.
Mike,

Closest to side shot that I have on this computer...

Mark
Aug 16, 2013, 01:18 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
Quote:
Originally Posted by old_coastie
Mike,

Closest to side shot that I have on this computer...

Mark
I think he means on the balancer.
Aug 16, 2013, 01:43 PM
"Some do, some don't"
old_coastie's Avatar

Oooppsss


Quote:
Originally Posted by North_of_49
I think he means on the balancer.
Didn;t catch that the "starter's" name was Mark also

The other Mark

Sorry
Aug 16, 2013, 02:35 PM
Epilepsy Awareness
Flying High Mike's Avatar
Quote:
Originally Posted by old_coastie
Ok I'm not picking, and if plane flys the way you want then forget that I said anything, but on the last picture looks to me like a little bit nose heavy??
OC, I was agreeing with you when you spotted the (what looks like) the Champ being nose heavy. I responded, saying "I caught that too."

I then asked for a side pic (of the Champ on the CG)

But, yours is nice too

Mike.
Aug 16, 2013, 04:44 PM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by old_coastie
Nose heavy beats tail heavy... every day of the week and twice on Sunday...

read somewhere on RCForum;

"A plane that is nose heavy will fly badly, a plane that is tail heavy will fly once
Lots of 3d guys will purposefully fly with quite a tail heavy plane, it makes the planes much more pitch-sensitive and helps with post-stall maneuvers

But for every day guys, your statement will generally hold true.

Ben
Aug 18, 2013, 11:08 PM
i crash sometimes
thecoolkid's Avatar
Quote:
Originally Posted by old_coastie
That's just the problem, mine hasn't been stock since like day two????

Although I have to admit that I have a brand new Champ sitting in box, never flown, no (weight crippling) MODS.....

What to do, what to do...

Some pics of "Fat Champ"
Does that have ailerons and flaps? Did you put a brush less motor in?
Aug 19, 2013, 08:55 AM
"Some do, some don't"
old_coastie's Avatar
Does have the Nine Eagles Motor and it's kinda??? got flaps.. More like fixed TE wing extensions. The motor upgrade and the TE extensions are two of the mods that actually worked out. Just this weekend I started weighing the "stuff" that had accumulated on the Champ. I pulled the "tundra" wheels that I had on and put back the original "ugly" wheels. Lost 5 grams in the process. Had to go thru the whole COG checks (glad I did too, because pulling those wheels made a huge difference in battery placement. Anyway no longer "Fat Champ", had her out this week-end and she flies much more like she did in the beginning.
Even in moderate winds she did very well.....

Champ at TCAF (6 min 2 sec)



Not exactly my best landings to date

But no damage to Champ and a very happy flyer...

old_coastie
Aug 19, 2013, 09:12 AM
"Some do, some don't"
old_coastie's Avatar

Great Info


Quote:
Originally Posted by bhoov128
Lots of 3d guys will purposefully fly with quite a tail heavy plane, it makes the planes much more pitch-sensitive and helps with post-stall maneuvers

But for every day guys, your statement will generally hold true.

Ben
BHoov,

Thanks for the info, I built a foamy 3D for my son, I am totally amazed with what he can do with that plane, but anyway I have passed on your info to him and he is going to "play around" with batt placement....

Makes perfect sense when you think about it, the 3D guys (and gals) are all about "instability" (and I mean that in a good way). Supposedly modern fighter aircraft would be impossible for a pilot to fly without "fly by wire" methods, the point being, if you want to be "really" agile don't count on being stable....

BTW, I have seen your posts many places on RCGroups and as a "noob" I can say that the "advice" that you and other "long timers" provide has been a real help in my learning experience with this hobby, and is just another reason that I am so amazed with just how great the community of people that make up this hobby are.

old_coastie
Aug 19, 2013, 10:25 PM
Always Indecisive
electricrc68's Avatar
This video is from awhile ago....waay back in June!!!! Just thought I would post it up though.

Hobbyzone Champ Morning Backyard Flight (3 min 13 sec)
Aug 19, 2013, 11:42 PM
"Some do, some don't"
old_coastie's Avatar
Holy Cow Batman I think we have just been dive bombed on by a yellow canary???????

No seriously when the video started I was thinking "Ok how is this guy going to fly the Champ around in that backyard, Boy was I suprised!!!!!!

I know I'm a noob, but to me that was some seriously smooth flying.....
Aug 20, 2013, 07:30 AM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by old_coastie
Holy Cow Batman I think we have just been dive bombed on by a yellow canary???????

No seriously when the video started I was thinking "Ok how is this guy going to fly the Champ around in that backyard, Boy was I suprised!!!!!!

I know I'm a noob, but to me that was some seriously smooth flying.....
lol! Yeah I just fly it waayyy up there to get away from the trees and houses.
Aug 21, 2013, 03:59 AM
Mark Harrison
Quote:
Originally Posted by old_coastie
Holy Cow Batman I think we have just been dive bombed on by a yellow canary???????

No seriously when the video started I was thinking "Ok how is this guy going to fly the Champ around in that backyard, Boy was I suprised!!!!!!

I know I'm a noob, but to me that was some seriously smooth flying.....
Indeed, that's rather sweet!
Aug 21, 2013, 09:06 AM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by marhar
Indeed, that's rather sweet!
Thanks!
Aug 21, 2013, 10:07 PM
Elfi Flyer
Doug Sipprell's Avatar
Hat camera? Fast Champ! Good flying, also....



RD
Aug 21, 2013, 10:08 PM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by Doug Sipprell
Hat camera? Fast Champ! Good flying, also....



RD
Yep, hat cam. Looked kinda funny with a camera taped to the bill of my hat. Gonna have to try that at the flying field and see what kinds of looks I get. Thanks for the compliment.
Aug 21, 2013, 10:53 PM
Registered User
Ginohio's Avatar
Quote:
Originally Posted by Doug Sipprell
Hat camera? Fast Champ! Good flying, also....



RD
have to admit...awesome flying..I have hundred foot trees in my backyard like yours..But that inspkres me--lol
Aug 22, 2013, 06:19 AM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by Ginohio
have to admit...awesome flying..I have hundred foot trees in my backyard like yours..But that inspkres me--lol
Thanks! You just gotta get way above the trees, and then the area opens up. I dare not try it with my other micros though! Well....I do it with my Ember 2 as well, but thats about it!
Aug 23, 2013, 12:16 PM
AMA 988154
k4pacific's Avatar

Battery Choice


Hi all, I've been flying the Champ now for almost a year, and it's time for new batteries.

Choices: Hyperion G3 CX 160mAh or Thunder Power 160mAh. What's your favorite? Perhaps something other?

Thanks
Aug 23, 2013, 12:21 PM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by k4pacific
Hi all, I've been flying the Champ now for almost a year, and it's time for new batteries.

Choices: Hyperion G3 CX 160mAh or Thunder Power 160mAh. What's your favorite? Perhaps something other?

Thanks
I would recommend the Turnigy Nanotech 160mah 25c batteries from Hobbyking. They work GREAT! Plus, they are much cheaper than the two options you listed. Heres a link:

http://hobbyking.com/hobbyking/store...dProduct=33224
Aug 23, 2013, 12:38 PM
AMA 988154
k4pacific's Avatar
Wow what a difference in price. Turnigy $1.57, Hyperion $6.55 and Thunder Power $8.99 quite a price spread.
Aug 23, 2013, 12:40 PM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by electricrc68
Thanks! You just gotta get way above the trees, and then the area opens up. I dare not try it with my other micros though! Well....I do it with my Ember 2 as well, but thats about it!
Once I get a hat-cam you're getting a video response for my front-yard Champ flying exploits.

Ben
Aug 23, 2013, 12:50 PM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by k4pacific
Wow what a difference in price. Turnigy $1.57, Hyperion $6.55 and Thunder Power $8.99 quite a price spread.
Yep its a big price difference! The turnigy's have been working great for me so far though. 1s and 2s!

Quote:
Originally Posted by bhoov128
Once I get a hat-cam you're getting a video response for my front-yard Champ flying exploits.

Ben
I can't wait to see that! Should be exciting!
Aug 23, 2013, 01:51 PM
Heli's rule!
dacaur's Avatar
Quote:
Originally Posted by electricrc68
I would recommend the Turnigy Nanotech 160mah 25c batteries from Hobbyking. They work GREAT! Plus, they are much cheaper than the two options you listed. Heres a link:

http://hobbyking.com/hobbyking/store...dProduct=33224
Yea those turnigys are great (all my turnigys are good) The only downside to them is they are fatter than the eflights... not a problem on planes that mount with velcro, but the cause broken battery holders on my nano cpx, and are so tight on my nano qx I am afraid to use them.
Aug 23, 2013, 01:53 PM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by dacaur
Yea those turnigys are great (all my turnigys are good) The only downside to them is they are fatter than the eflights... not a problem on planes that mount with velcro, but the cause broken battery holders on my nano cpx, and are so tight on my nano qx I am afraid to use them.
Yeah they were tight on my Nano CPX as well. (I sold that...didn't find it as fun as planes).

How do you pronounce your screename, by the way? (random question...sorry. ).
Aug 23, 2013, 02:15 PM
Heli's rule!
dacaur's Avatar
Quote:
Originally Posted by electricrc68
How do you pronounce your screename, by the way? (random question...sorry. ).
lol. Its a name I made up around 1996 for an online game, I wanted something that sounded like it came from the knights age..... I have the web address (dacaur.com) too I pronuonce it "da car" (dak are)

The plus side is when signing up for stuff, the only time its ever taken is if I have already signed up....
Aug 23, 2013, 02:18 PM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by dacaur
lol. Its a name I made up around 1996 for an online game, I wanted something that sounded like it came from the knights age..... I have the web address (dacaur.com) too I pronuonce it "da car" (dak are)

The plus side is when signing up for stuff, the only time its ever taken is if I have already signed up....
I guess if you go to Paris you could be Paris-Dacaur.....sorry... poor obscure reference joke
Aug 23, 2013, 02:19 PM
Always Indecisive
electricrc68's Avatar
Quote:
Originally Posted by dacaur
lol. Its a name I made up around 1996 for an online game, I wanted something that sounded like it came from the knights age..... I have the web address (dacaur.com) too I pronuonce it "da car" (dak are)

The plus side is when signing up for stuff, the only time its ever taken is if I have already signed up....
Oh okay lol. Just curious. Because the way I was pronouncing it (duhk ar), means "Burp" in Hindi (my second language from my parents ).
Aug 23, 2013, 02:28 PM
Heli's rule!
dacaur's Avatar
Quote:
Originally Posted by bhoov128
I guess if you go to Paris you could be Paris-Dacaur.....sorry... poor obscure reference joke
Hehe... I just found out about the dakar rally a few years ago, I love the big trucks!! Can you believe they stole my name? I mean. sure, they changed the spelling... and somehow went back in time to before I made mine.... but still....
Actually, the first one was run the year I was born...., well, most of it anyway.... I was actually conceived (here in the usa) while the race was running.... weird
Aug 28, 2013, 09:36 PM
2016 The Year for Air Shows
Red.Sneakers's Avatar

Champ Knowledge Base


After 158 flights or 24 hours of flight time, 1 bird attack, 1 cork screw spin into the ground, several beginner crashes, and 1 pilot induced emergency crash landing, I retired my first Champ in July 2013. Love the plane so much, I got another, named "Champ deux".

The attached pdf file are my notes about the plane & assume you already know how to fly. For flying lessons, please find a mentor and join the AMA (Academy of Model Aeronautics) or local club. After owning two Champs and having over 200 flights, here is everything I know about the plane.
...
Updates:

+ Oh yea, the manual (see below)

+ I have attached my radio settings for the DX8 (see below)

+ For those wanting to start a Flight Check List, I have attached a generic version (see below)

+ I use the free apple app "Tally Things" to log my flights.

+ To send a friend the link to this report, click here and then copy&paste the URL at the top of your browser
https://www.rcgroups.com/forums/show...31Report#18463

+ Motor replacement:
- Stock Champ motor
- Ultra Micro P-51 motor
- Solo Pro FP II Replacement main-motor
+ In 1939 it was the Aeronca Chief. In 1946 it was the Aeronca Champ.

+ Signs to look for in a cooked motor: Stage 0: "I disconnected the battery, plugged it in again firmly and it was fine after that"; Stage 1 (periodically sputters with fresh battery); Stage 2 (full throttle, no response, spin the prop by hand and she goes); Final Stage (low power).

+ Replaced the motor and still intermittent? See https://www.rcgroups.com/forums/show...ostcount=18602

+ Check out the Champ Gallery at https://www.rcgroups.com/forums/show...=galleri+champ
...
Last edited by Red.Sneakers; Aug 17, 2014 at 08:07 AM.
Aug 28, 2013, 09:57 PM
Registered User
jimmy boo's Avatar
Quote:
Originally Posted by red.sneakers
after 158 flights or 24 hours of flight time, 1 bird attack, 1 cork screw spin into the ground, several beginner crashes, and 1 pilot induced emergency crash landing, i retired my first champ in july 2013. Love the plane so much, i got another, named "champ deux".

The attached pdf file are my notes about the plane & assume you already know how to fly. For flying lessons, please find a mentor and join the ama (academy of model aeronautics) or local club. After owning two champs and having over 200 flights, here is everything i know about the plane.
...
Updates:

- may want to read the manual (see below)
...
cool!!
Aug 29, 2013, 09:18 AM
Custom User Name Title
bhoov128's Avatar
That was a pretty good read, thanks for sharing!

Ben
Aug 31, 2013, 06:07 AM
I review RC Products
GBLynden's Avatar
So I was happy to finally make a new Champ video. It is amazing how I still love this plane after over two and a half years of flying it!

Hobbyzone Champ Ultra Micro Trainer RC Plane at Bender Field in Lynden, WA (2 min 18 sec)
Aug 31, 2013, 08:39 AM
Registered User
kodak_jack's Avatar
May sound like a dumb question, but how do you know, after about 2years+ like yours, when the motor needs to be replaced? Mine still flies fine, but it is a LOT slower than yours. It flies like an old lady plane.
Aug 31, 2013, 08:59 AM
Epilepsy Awareness
Flying High Mike's Avatar
Quote:
Originally Posted by GBLynden View Post
So I was happy to finally make a new Champ video. It is amazing how I still love this plane after over two and a half years of flying it!

http://youtu.be/M5NvN1z3-wc
I never get tired of watching Champ vids..

Quote:
Originally Posted by kodak_jack View Post
May sound like a dumb question, but how do you know, after about 2years+ like yours, when the motor needs to be replaced? Mine still flies fine, but it is a LOT slower than yours. It flies like an old lady plane.
Jack, he played the vid is fast forward

Mike.
Aug 31, 2013, 01:14 PM
I review RC Products
GBLynden's Avatar
Quote:
Originally Posted by kodak_jack View Post
May sound like a dumb question, but how do you know, after about 2years+ like yours, when the motor needs to be replaced? Mine still flies fine, but it is a LOT slower than yours. It flies like an old lady plane.
I just used momentum from elevation, quick turns, and the way I went at the camera made it look faster.

I was using Mini Aviation 190's, so that may have helped even though they are on their last legs after tons of fun!

It is the original motor, so I am planning on running it into the ground lol

Quote:
Originally Posted by Chap1012 View Post
I never get tired of watching Champ vids..



Jack, he played the vid is fast forward

Mike.
Thanks for watching guys and lol at the fast forward comment!
Last edited by GBLynden; Aug 31, 2013 at 08:06 PM.
Aug 31, 2013, 05:36 PM
Registered User
Ginohio's Avatar
My niece(13) and nephew(14) each flying a Champ last weekend At one point we had 3 champs and the Firebird Stratos up at one time just having fun..

Champ2 (2 min 34 sec)





11%
Sep 01, 2013, 03:51 PM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by kodak_jack View Post
May sound like a dumb question, but how do you know, after about 2years+ like yours, when the motor needs to be replaced? Mine still flies fine, but it is a LOT slower than yours. It flies like an old lady plane.
Most of the time when the motor goes bad you'll know right quick - you might get 1 min max or sometimes no flight time before the LVC kicks in with a known good battery pack or it'll simply run like a dog and hardly fly the plane. I recommend P-51 or Bravo SP / SX for a replacement cuz you can never have too much power!

Ben
Sep 01, 2013, 07:55 PM
Dark Lord of the Sith
Rob_In_MO's Avatar
Quote:
Originally Posted by kodak_jack View Post
May sound like a dumb question, but how do you know, after about 2years+ like yours, when the motor needs to be replaced? Mine still flies fine, but it is a LOT slower than yours. It flies like an old lady plane.
Trust me, you'll know. Massive loss of power, and the plane will fight just to stay in the air at full throttle. Next - you'll have to spin the prop by hand just to get the motor to turn. Then you're officially done...
Sep 01, 2013, 09:51 PM
Power Wheels Guru
UNGN's Avatar
Or the prop stops turning altogether when the motor gets so hot it melts the gearbox. I've had that happen a few times over the years with 8.4mm motors.

Flight time generally go down to 1-2 minutes per battery before this happens, so it should be a big surprise.
Sep 02, 2013, 06:34 AM
Registered User
kodak_jack's Avatar
It's a big deal in this thread for guys to go to the Mustang motor. On the Mustang thread, they go to the Bravo motor. Why don't we skip the Mustang and go right to the Bravo?
Sep 02, 2013, 08:50 AM
Custom User Name Title
bhoov128's Avatar
They're about the same price if you buy from reputable places, around $10, but the parkzone motor is a drop-in replacement and the nine eagles bravo sx motor needs to have the pinion from the dead Champ motor put on, and the wires extended to reach the brick with the proper connector installed, which is quite a bit of work. Or you can get one plug-n-play from RCBabbel for $28.

PZ Mustang motor is a crapshoot on whether it'll last long or not but it's the cheapest easiest route.

Ben
Sep 02, 2013, 09:53 AM
Power Wheels Guru
UNGN's Avatar
Quote:
Originally Posted by kodak_jack View Post
It's a big deal in this thread for guys to go to the Mustang motor. On the Mustang thread, they go to the Bravo motor. Why don't we skip the Mustang and go right to the Bravo?
The Mustang motor is more motor than the Champ needs. The SX motor needs very good batteries. Cheap batteries like nanotech 160's only work good for about 2 weeks with the SX motor, then they start to LVC early when you use WOT.
Sep 02, 2013, 10:20 AM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by UNGN View Post
The Mustang motor is more motor than the Champ needs. The SX motor needs very good batteries. Cheap batteries like nanotech 160's only work good for about 2 weeks with the SX motor, then they start to LVC early when you use WOT.
This is very true, and a plus is I find with the upgraded power I can fly comfortably without losing altitude in turns at around 1/4 throttle, and it extends my flight time with a battery by around a minute or a minute-thirty. This is using E-flite 150mAh 35Cs, which are no longer available, but my LHS carried them at HH-price of $4.99.

WFO she's comically fast.

Ben
Sep 03, 2013, 06:21 AM
Registered User
kodak_jack's Avatar
The Mustang uses the same batteries and I've never heard anybody on the thread complain about the batteries not holding up after switching to the SX motor. Maybe they're also switching to the Babbel Bats and the two make a better pair.
Sep 03, 2013, 09:44 AM
Custom User Name Title
bhoov128's Avatar
Quote:
Originally Posted by kodak_jack View Post
The Mustang uses the same batteries and I've never heard anybody on the thread complain about the batteries not holding up after switching to the SX motor. Maybe they're also switching to the Babbel Bats and the two make a better pair.
I think most say to take full advantage of the bravo sx's increased power potential you have to use some better batteries than the supplied parkzone or e-flite batteries. It will run just fine on those batteries however. But that theory is true no matter what motor/battery combo in any airframe you're using - a better battery is going to give you more.

Beni
Sep 17, 2013, 10:19 AM
2016 The Year for Air Shows
Red.Sneakers's Avatar

Champ Gallery



Calling all Champ lovers around the world. Have you modified your Champ or added any bling, now is your chance to showcase it in a gallery dedicated to the proud owners of the Hobbyzone Champ.

Go to this RC Groups link to add your photo.

https://www.rcgroups.com/forums/show...=galleri+champ

Cheers
...
Last edited by Red.Sneakers; Jun 23, 2014 at 06:27 PM.
Sep 19, 2013, 06:03 AM
Registered User
schuey19's Avatar
Fellow Champers I need your help. Had mine for just on three weeks and whilst I've pranged her a few times it just keeps going. Its had a vertical tail change, but still all good. Until this evening. TX on, I plug in the flight batt, an EFlite 160Mah 35C. The brick LED flashed once for one second and then it went out. There was no response from TX input. Flight batt disconnect and reconnect, same thing. Re bind and flight batt again, still nothing. I gave it a whack on the nose and it came to life. I thought what the heck, and sent it on its way skyward. Then after about four minutes flight, just casual circuits at half or less than half throttle, all went silent and she was on her own. A quiet and graceful safe landing followed, luckily on my front lawn. As I picked it up, the LED was off, so I did the flight batt again and it turned on. Keen to fly, I got a fresh batt and started again. Same thing, a flash, nothing then a whack and life.
So, if you're still reading this, what could it be? Brick, leads to batt, or batt connector? Its had a few landings where the batt has come unstuck and dragged a little on roll out.

Cheers,

Michael
Sep 19, 2013, 06:54 AM
The figure "9" Specialist
aeronca's Avatar
Quote:
Originally Posted by schuey19 View Post
Fellow Champers I need your help. Had mine for just on three weeks and whilst I've pranged her a few times it just keeps going. Its had a vertical tail change, but still all good. Until this evening. TX on, I plug in the flight batt, an EFlite 160Mah 35C. The brick LED flashed once for one second and then it went out. There was no response from TX input. Flight batt disconnect and reconnect, same thing. Re bind and flight batt again, still nothing. I gave it a whack on the nose and it came to life. I thought what the heck, and sent it on its way skyward. Then after about four minutes flight, just casual circuits at half or less than half throttle, all went silent and she was on her own. A quiet and graceful safe landing followed, luckily on my front lawn. As I picked it up, the LED was off, so I did the flight batt again and it turned on. Keen to fly, I got a fresh batt and started again. Same thing, a flash, nothing then a whack and life.
So, if you're still reading this, what could it be? Brick, leads to batt, or batt connector? Its had a few landings where the batt has come unstuck and dragged a little on roll out.

Cheers,

Michael
My first suspicion is a loose wire on the brick. Regardless of cause, I think you are doomed to opening the fuse and checking all wire connections - at least that's what I'd do.

Good luck!

Aeronca
Sep 19, 2013, 07:23 AM
Closed Account
I agree your going to need to open her up, The brick on a champ is in there real good, Much better than any of my other planes. So I would think connection too. The champ must be in real bad shape to get the brick most times.
Sep 19, 2013, 08:51 AM
Custom User Name Title
bhoov128's Avatar
I would suspect a loose or broken solder joint on the battery wires, probably not from crashing but from possibly pulling on the wires while plugging / unplugging the battery.

Ben
Sep 20, 2013, 06:06 AM
Registered User
kodak_jack's Avatar
I can't tell you how much I hate those stupid connectors! Is it in all the way? Is a pin bent? Why won't it push on all the way? etc. I've read recently that you can charge through a JST connector. Something has to be better than the ones we get. The only drawback is that you'd have to have an adapter cable to attach to the battery end. Walkera 1 cell connectors are even worse.
Sep 21, 2013, 11:38 AM
Rock-n-Aileron Roll!
Saxguy1000's Avatar
Quote:
Originally Posted by kodak_jack View Post
I can't tell you how much I hate those stupid connectors! Is it in all the way? Is a pin bent? Why won't it push on all the way? etc. I've read recently that you can charge through a JST connector. Something has to be better than the ones we get. The only drawback is that you'd have to have an adapter cable to attach to the battery end. Walkera 1 cell connectors are even worse.
You could change to mini-deans connectors. Get the actual Deans connectors, though. I bought the knock offs and they weigh 2x the original.
Sep 22, 2013, 07:08 AM
Registered User
kodak_jack's Avatar
I've used them on different heli's in the past. The only thing is you'd have to have adapter cables coming off each battery and, if you have a lot of flying stuff using those batteries, they'd all have to be changed over. Right now, I have 5 flying things using those batteries and connectors.
Sep 30, 2013, 06:00 PM
Registered User
I crashed my Champ RC plane. The wing snapped off so I fixed the wing with a couple of pins and some glue. Today was the first time I took the plane out since the crash and the elevator was not working. There was this loud high pitched sound coming from inside the airplane. Does anyone have experience fixing the actuator of the elevator?
Sep 30, 2013, 08:35 PM
Registered User
Quote:
Originally Posted by jtodski View Post
I crashed my Champ RC plane. The wing snapped off so I fixed the wing with a couple of pins and some glue. Today was the first time I took the plane out since the crash and the elevator was not working. There was this loud high pitched sound coming from inside the airplane. Does anyone have experience fixing the actuator of the elevator?
The servo sensor likely ran off the end of the stripe. Cut the tapes to open the fuse. Turn the large gear on the servos with your finger to get them back on track. Add new tape over the old tape. Avoid putting tape on untaped areas or the next time you open it it the tape will lift the paint. Add a small 'tab' to the new piece of tape so the next time you need to remove it you won't need to cut it (adding innumerable layers of tape on the same spot) but grab the tab and pull the tape.
Oct 01, 2013, 11:32 AM
Custom User Name Title
bhoov128's Avatar
^ This guy knows his poop, do exactly what he says
Oct 01, 2013, 03:29 PM
Kamikaze Ace
Glacier Girl's Avatar
Tape works, but just to give you an alternative. I pin mine together. No tape to deal with.
Been 3 years now, and still doing just fine.
I installed a CF "pin" in the rear fuse to go into a piece of control rod tube, to secure the rear.
Bout half way down I have another CF rod/tube set up running through the fuse side, and a third about 2" forward of it. Piece of foam was glued to the upper fuse for the pins/tubes to go through. Pull the 2 CF pins and the top comes right off. Do what ever is needed, slip the fuse top back in place and secure with the 2 pins, and go fly.
Last edited by Glacier Girl; Oct 01, 2013 at 03:36 PM.
Oct 01, 2013, 06:37 PM
Registered User
Where is the fuse
Oct 01, 2013, 07:30 PM
Registered User
Quote:
Originally Posted by jtodski View Post
Where is the fuse
It's the little grey string thingie sticking out of the firecracker.

Either that *or* it's a short word for fuselage. The Champ fuse is in two halves - top and bottom. There are bits of very thin clear adhesive plastic (tape really) that hold the two halves together. There are two on each -side-, one towards the front on the cowl and one by the back of the cabin. There's also one piece on the -top- surface just in front of the vertical stabiliser.
Oct 01, 2013, 07:30 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
Quote:
Originally Posted by jtodski View Post
Where is the fuse
fuselage
Oct 01, 2013, 08:21 PM
Registered User
where?
Oct 01, 2013, 08:34 PM
Registered User
Quote:
Originally Posted by jwp2 View Post
where?
Visual aid: https://en.wikipedia.org/wiki/Fuselage
Last edited by jbarchuk; Oct 01, 2013 at 08:54 PM.
Oct 01, 2013, 08:42 PM
Registered User
Lol.
Oct 01, 2013, 09:52 PM
Custom User Name Title
bhoov128's Avatar
These last few posts have me rolling

Well played jbarchuk, well played

Ben
Oct 01, 2013, 09:56 PM
Scout CX | mCX2 | mSR | 120SR
North_of_49's Avatar
Am pretty sure jwp2 knows where the fuselage is and was joking

jtodski just didn't know we call it the fuse. Speaking of fuses (the other ones), I wonder why manufacturers don't use them in their electronics? (current over draw)... it would save us from frying bricks. I bought a bunch of pico fuses to use on my Champ and other plane's LED systems in case of shorts. Very tiny, light weight and cheap.
Oct 01, 2013, 10:35 PM
Registered User
Quote:
Originally Posted by North_of_49 View Post
Speaking of fuses (the other ones), I wonder why manufacturers don't use them in their electronics? (current over draw)... it would save us from frying bricks.
Beeeecaaaaws...

A US$0.15 part costs several-$ to design and manufacture, which adds $10 to the retail price. It also adds a ton of real estate, which makes it harder to fit in a plane. (Notice the NQX where they went through the trouble of putting a FET on the bottom of the board to avoid the annoyance of making the brick larger.)

That $ is for a pure SMT part. So if it blows, who's gonna change it? LHS? Not likely. LOL!!! Ship the whole plane back to China to change a fuse to fix a $5 (their cost) part? Shipping would cost more than the service charge anyway.

The 'SMT fuse holder' style which potentially -could- be changed by the LHS is $1.50. That adds a *ton* to the retail price. It's another point of failure if the fuse happens to fall out in a bad crash. So even if the pilot -could- replace it himself he needs to carry around a bag of fuses. And an appropriate tweezer. And a magnifying lamp.

It's simply not doable.

My hotrod Hitec X4 AC charger doesn't have an on/off switch - saves $10 off the retail price. I am annoyed, but not excessively.

The bottom line is that -engineering- knows what they would -like- to build into a product, but -management- says 'if it's not *absolutely*ABSOLUTELY* necessary, then leave it out.'


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