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Old Jun 11, 2013, 02:59 PM
RC flying addiction
Joined Dec 2012
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I did a Search this Thread for "wobble on descent"
Interesting reading!
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Old Jun 11, 2013, 03:00 PM
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Originally Posted by HeliRick View Post
Any recommendations for better props?
GemFan Carbon
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Old Jun 11, 2013, 03:32 PM
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United Kingdom, Belper
Joined Jan 2011
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Well I dont think my 13" props will be flexing. They are rather chunky. I may try some carbons but I'm unable to find any 13" 4.5. I could try 14"x4.7 but I might be pushing my motors a bit too hard. I also have some 12" but then I'm hovering at 80% throttle which sucks.

I'll try lowering the gains some more, maybe then some 14" carbon props.

The 13" that I use now are these, they are proper chunky and have no flex. I little heavy mind.

http://www.goodluckbuy.com/13x4-5-13...tor-black.html
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Old Jun 11, 2013, 03:49 PM
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United States, CA, Hayward
Joined Oct 2010
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Chiipi 09's 3 servo tri project

.....another test project to make this hobby more interesting !

CHIPPI 09 'S 3 SERVO TRI TEST PROJECT (2 min 36 sec)
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Old Jun 11, 2013, 04:37 PM
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United States, MT, Missoula
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Quote:
Originally Posted by COCO2010 View Post
.....another test project to make this hobby more interesting !

http://youtu.be/0gMMycxCGtQ
Thats awesome, lets see it fly....
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Old Jun 11, 2013, 04:46 PM
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Originally Posted by 1morehobby View Post
Thats awesome, lets see it fly....
+1
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Old Jun 11, 2013, 05:41 PM
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Canada, ON, Ottawa
Joined Dec 2011
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Quote:
Originally Posted by COCO2010 View Post
.....another test project to make this hobby more interesting !

http://youtu.be/0gMMycxCGtQ
Another fascinating and fine looking multirotor from you... very nice!
The T-arm looks a bit short and stubby compared to the length of the tail-boom, was it a design choice or a happenstance from parts on hand?
I can't wait to see her powered-up and tasting air for the 1st times with the 3 servos twitching away.
I still want to build at least a traditional TRi to play with and join-in on the Fun.

@e_lm_70: At times I get the odd pkg superquick from HongKong, these CF props took only ~1week to get to Canada!
I agree with gandal and I'll not buy 8"+ colored props anymore, the Pro in my 8x4.5 "SlowFly Pro" props mean very little.
When you get 'em I hope you have as much "magic" as I have had with my Carbon Fiber props , I did also order a set of GemFan Carbon Mix and a set of APC Carbon Mix props too and hope they perform just as well when needed.
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Old Jun 11, 2013, 06:24 PM
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United States, FL, Dunedin
Joined Jan 2013
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Quote:
Originally Posted by COCO2010 View Post
.....another test project to make this hobby more interesting !

http://youtu.be/0gMMycxCGtQ
I saw this and I wondered,,, why?
Then I saw it was COCO and thought,,, why not.
(I grabbed an old heli and started on a Duel Copter.)
Can't wait to see the test flight.
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Old Jun 11, 2013, 06:36 PM
Canada, BC, Vancouver
Joined Apr 2013
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Originally Posted by zerush View Post
Wobble on descent can also be caused by Vortex Ring State...
Yes, this is common to all multi-rotor aircraft. It's caused by descending into turbulent air created by the down-wash of the propellers.

It's normal.

You can descend at an angle or circle during decent.
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Old Jun 11, 2013, 08:49 PM
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Originally Posted by shauntot View Post
RC Clubs? Why such a negative connotation? I love my club. And this is why

PS - this is how we spend our flying weekends, every weekend

http://www.youtube.com/watch?v=QLawW5Wnc8U&hd=1
Nice Vids...
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Old Jun 11, 2013, 09:37 PM
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United States, CA, Thousand Oaks
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Originally Posted by thinc2 View Post
i almost ordered these, but there is zero information on the page about the prop - are they gemfans, or who makes them? Unless you happen to find a post like yours that recommends them, it's hard to know what you are getting. i ended up ordering from DIYcopters in the US and shipping it to the hotel there i will be staying at next week.

i guess i now know for next time...
Those are gemfans, and I would recommend the store to a friend. Who else ships for 5 bucks from Europe to the US?
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Old Jun 11, 2013, 11:32 PM
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Originally Posted by COCO2010 View Post
Thank you sir ! I was able to asked some help from a YT friend of mine...YASOU840...this guy is very smart and very helpful too.Search him in YT and you can see his creation and you can't believe what you are seeing.Thanks for liking my Dualcopter version.
Hi Coco2010,

Can you help me setting up my dual copter? It keep yawing to the left? What PID should I tweak?


Thanks...
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Old Jun 12, 2013, 02:44 AM
Chris
The Netherlands, NB, Eindhoven
Joined Sep 2010
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Quote:
Originally Posted by helizrnew2me View Post
wheres the like button?lol.......seriously though i could never get away with such a thing over here .i see low flying aircraft daily .and with a small airfield just minutes from my house single engine planes fly by my place daily .
pretty low sometimes too .i could easily reach them so i gotta be careful and watchful .

i see commercial craft pretty low too .lower than i think they should be but i have a bit of altitude here being half way up the hill going out of town .

all it takes is one time ,your quad(or plane ) gets sucked into a commercial craft engine and you down a plane .lives are lost ,they find you ,jail you ,fine you ,and now you gotta live out the rest of your days knowing your the reason many people lost their lives .
and thats the end of our hobby .

something to think about when you see these guys bragging about how high they went today .its only a matter of "when" it will happen .
So, will a quad be worse than a flock of birds in the engine(s)?
Then, what about a 1.5m wingspan plane?

Just thinking...
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Old Jun 12, 2013, 03:09 AM
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Slovenia, Ljubljana
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Originally Posted by thinc2 View Post
i almost ordered these, but there is zero information on the page about the prop - are they gemfans, or who makes them? Unless you happen to find a post like yours that recommends them, it's hard to know what you are getting. i ended up ordering from DIYcopters in the US and shipping it to the hotel there i will be staying at next week.

i guess i now know for next time...
Yes. On my props is written Gemfan. They are very good.
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Old Jun 12, 2013, 03:22 AM
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United States, CA, Hayward
Joined Oct 2010
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3 servo TRI

Quote:
Originally Posted by vpsporb View Post
Another fascinating and fine looking multirotor from you... very nice!
The T-arm looks a bit short and stubby compared to the length of the tail-boom, was it a design choice or a happenstance from parts on hand?
I can't wait to see her powered-up and tasting air for the 1st times with the 3 servos twitching away.
I still want to build at least a traditional TRi to play with and join-in on the Fun.

@e_lm_70: At times I get the odd pkg superquick from HongKong, these CF props took only ~1week to get to Canada!
I agree with gandal and I'll not buy 8"+ colored props anymore, the Pro in my 8x4.5 "SlowFly Pro" props mean very little.
When you get 'em I hope you have as much "magic" as I have had with my Carbon Fiber props , I did also order a set of GemFan Carbon Mix and a set of APC Carbon Mix props too and hope they perform just as well when needed.
Thanks ! All parts was all over the place and decided to build this project and the result was really not what I expected. I will be uploading a flying video by today and let me know what you think.Thank you sir !
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