Airwild extra 260 29% hyperion Z 50 power

[kmp647]

Here are some specs of My Extra 260 from airwild

29% scale
87" span
1370 sq in area
15 lbs (DA50R)

My setup will be an all Hyperion powersystem including:

Motor: hyperion Z50 45 18 outrunner 149 kv 30oz
mount:hyperion Z50 front mount 7oz

speed control: Hyperion 12s 90a (this is hyperions soon to be released 12 cell controller) It closely resembles the hyperion 90a 10 cell controller, is stick programable , and will soon be emeter programable. 4ozThanks to Hyperion, and www.allerc.com for getting me this controller so I can complete my plane!


Batteries 12s 3700s hyperion lvx cells ( I will be using 2 5s packs and 1 2s pack series together for the first flights) 42oz
Later I may use 2 6s 5000 ma packs of hyperion lvx cells.

The plane comes boxed very well
all components are secured and there was no damage
The people at Airwild were very nice, and prompt in shipping.

My brother and fellow ezoner Mark will be doing the build for me, he has years of experience, a little more patience than me, and a little more free time too. Thanks Mark

I will be posting the pictures and description of his progress.
We are looking to use a 24x12e prop on 12s for about 3,600 watts!

Kevin

[cje0114]

very nice. I've been thinking about this plane myself but will go gas with it. Too much money for me to do an E conversion that size.

Good luck!

Chris

[blucor basher]

Ought to be great! We're using lots of the same parts in an Extreme Flight Yak at 12.5 lbs, at 3800W everything is solid and comes down warm, not hot.

[kmp647]

Ok, here are some shots of last nights work. Mark mounted the gear up so the plane will be easier to work on.

then mounted up the motor using 4mm bolts and blind nuts.
The ESC is mounted to the bottom of the motor box.

The prop is a 24x12e, and the spinner is from Esprit models 102mm(4")
these are very nice aluminum backplate spinners Zb sells.

Here also is a pic of the new Hyperion 12 cell 90a controller.
Its due out soon, I dont know the price yet.

and also a pic of the Z5045/18 motor, its about the size of a soda can!
details on the motor can be found here
http://www.allerc.com/product_info.php?cPath=7_76_77&products_id=2383

Kevin

[Jocke]

Super najs ;)

Looking forward to flight report!

[StrangeGager]

...Here also is a pic of the new Hyperion 12 cell 90a controller.
Its due out soon, I dont know the price yet...


Kevin

So how'd you get one, hmm? :D

[kmp647]

Last nights work included installing the phenolic control horn for the aileron on one wing. Its something that needs to be done well for sure. the set up looks strong and light. The control rod is a1.5" titanium pro link with a HD ball joint at each end.The ailerons are hinged with Ca hinges.
The servos are metal gear dual ball bearing 126oz.
The servo arms are airwild MLP 1" futaba
They fit very tight on the servo shaft/no play at all
They have to be cinched down with the servo screw to get them to fully seat onto the splined shaft.

Mark also put the cowl on so we could see the motor alignment.

I will be using a 6v regulator from radiosouth, and a 2 cell 2100 ma lipo from hyperion for radio and servo power.

Looks good!

[kmp647]

I made up a harness for 3 batteries in series, I will be using 2 5s packs, and 1 2s pack to make a 12s1p 3700 pack for test flights.

Here is the harness, I will cut it to length once the battery tray is installed.

I will need to cycle the 2s 3700 pack as it is new.

the batteries with harness are 40.75 oz


power system test by this weekend!

[kmp647]

Ok, I picked up the plane from my brother yesterday and brought it home to my garage to finish it.

He hinged all the surfaces and installed the phenolic control horns, along with the aileron servos, and took care of mounting the motor for me. In addition he installed the sullivan tail wheel.

I set it up on one of my pvc plane stands so i can work on the radio installlation..

I installed the rudder servo with its 3" arm from airwild, and set up the pull/pull cables.

More pics and info to come soon.

[kmp647]

A couple shots of some more progress:
I mounted the cowl, and put the prop and spinner on
prop is a 24x12e and the spinner is 4"

I still have to cut an air exit in the bottom of the cowl.

mounted the rec and the voltage regulator and tested the rudder and elevator servos.

Its starting to look like a plane.

[go-flight]

Here is the harness, I will cut it to length once the battery tray is installed.


What sort of total length are you looking at getting when combining the wires, also between each pack?

We have had very good success on 10S packs with carefully slitting open the flex of each 5S pack and pull back and out the corresponding wires. If you oppose the direction of the packs and cut the wires real short and solder a plug on, the additional lengthis very little.

FWIW.

[kmp647]

I will have to measure. I have seen how you set up your packs(online pics) with bullet connectors, how do you make sure you dont make a polarity mistake?

also I charge using a LBA10, so batteries are connected by multi pin and by deans to the LBA10, how do you charge once you have combined your packs?

I will be making my 3 series harness very short, after looking at the plane I can tell I wont need much length to reach the packs(3" total) plus pack leads.

BTW have you guys tested any of the BIG Z50s on 10 or 12s?

seems like no one is using this motor in the USA much.

I will be posting full power test via emeter, and a flight video.

Kevin

[go-flight]

Hi Kevin

Making a polarity mistake with bullet connectors (we use 3.5mm MP Jet - very tight, good for very high currents) is of course more probable than with Deans. But by using a simple system such as always having positive as male on the packs the risk is really low.

The LBA10 came after the season had ended here in Europe so we haven't used it much for ourselves yet. All charging this season has been by using one LBA6 per 5S pack. In some cases the packs were charged as 10S packs and the balancers were used during the charged or passively before and after. In other cases each 5S pack was charged with a simple EOS5i charger and the charge was done through the LBA6 so the 10S pack did not have to be separated into 5Ss.

We have tested the Z50'ies quite a bit this late summer, especially the Z5045-18 on a 7 kilo 3D plane with a 12S 5000 setup on the new 12S controller you are also using. We used two 6S packs so they were hooked up the "usual way". It is an impressive setup with tons of power - I will write more about the setup incl. plane.

Gudmund

[kmp647]

Great to hear you have tested this setup, I hate being the first! and having to guess!

I would love to see the write up!

I will be getting some 6s packs for next season, maybe the new hyperion 4800s
and I am awaiting the new 12s10i charger from hyperion too!
I think I will need a generator for field charging too!

Again , looking forward to your Z50 experiences


Kevin

[go-flight]

Yep, charging 12S on fields without power is no joke. Even rather large auto batteries do no last many charges and next step is a generator as you suggest - or many pre-charged flight packs :-)

Gudmund

[NumbSkull]

Great looking build so far, cant wait to see it complete and hear of the flight report!!

[drose300]

What do you guys think of the C A Hinges? I've had them to pull out and break on other planes. I don't see why Du Bro flat hinges with the pin would'nt work.
Thanks David

[go-flight]

Perhaps it's a matter of technique when you "install" the CA hinges. It is very tempting to glue them in on the surface or wing first, and then slide the other part over the fixated hinges. This way, while quick and easy, is not a good idea.

Instead, fixate the hinges with on or two building pins per hinge. Now slide over the counterpart and align. Feed CA into the visible part in the hinge line, and keep doing so untill it stops absorbing the CA.

This way both sides are glued in one go and you ensure that you aren't saturating the side of the hinge not inserted into a wing or surface. The pins ensure that the hinge is not shifting around.

I have yet to see a CA hinge fail and we (ab)use them so far upto 12S 7 kilo models.

That being said, I am sure you can use flat hinges or the round variant that is epoxied in with great success, too. The simplicity of the CA contrasted to heated vaseline and what have you is just unbeateable, IMHO.

Gudmund

[NumbSkull]

Not to mention in an ARF, you don't know what your digging into when you open that hole up for the thicker pinned hinges. You might be opening, or stretching a slot cut into a strip of 1/8 think balsa (I would think not in a plane this size, but I'm using this as an example).

Not knowing what the structure is and trying to push a thinker hinge into the wing and the stress from that thicker hinge would worry me more then the CA hinges.

Just my 2 cents...

[kmp647]

here is a shot of the assembled plane

12.5 lbs less batteries

batteries are 2.5 lbs so 15 lbs or so AUW

working on radio programming

power test soon

[kmp647]

Over the past couple days I have worked on finishing up.
I made a battery tray after checking the cg , it uses a large velcro strap you will see in the pic
I routed the antenna
I added a cooling hole to the bottom of the cowl
I added scoops on the left and right side of the motor mount to funnel air towards the motor(like on the extreme flight extra 300) I used large spinner packages.

Here is a pic of the radio area and battery tray

and also one with the batteries installed(2 5s packs with a 2s pack in between)

I also ran up the motor on 12s for the first time(had to have my wife help me hold the plane)

No wattmeter test, just a quick run up to check for noises or vibration(none were noted)

Here is a pic next to my extreme flight extra for size comparison

Test flight soon

[sun.flyer]

kmp,

Very clean looking setup. Let us know how the maiden flight goes. Sweet looking plane.:)

Tim

[1bwana1]

KMP,
I'm really looking forward to your flight report. The Airwild will fly great at the 15lb weight. It is one of the lightest planes in it's class. I have a HYperion 74"YAK that weighs 11lbs 13oz all up with batteries. It has the OPTO 90 speed controller, Hyperion Z5025-22 motor, with 10S LVX-4300 packs. I have settled on an APC 19 X 10E prop which is smaller than Hyperion recomended but provides extra headroom for all of the equipment and batteries. At WOT the motor is drawing 66 amps static and probably unloading a bit in the air. In any case, with well over 200 watts/lb the power is fanastic. The Z50 series motors are really great. Motor, ESC and Batteries all come in under 115 degrees after a flight. I use this plane to practice IMAC sequences and compete in an all electric local precision aerobatics series. This type of flying requires a lot of fairly long uplines so it is a very good test of the equipment. I get a solid 8.5 minutes of flight time doing the sequences, enough for two times through the patterns, and longer when doing sport/3D flying.

Keep us updated when you do your maiden!

-STEVE-

[kmp647]

Maiden flight success!
The warm weather here over the weekend was great!
I put 2 flights on the 260 and all went well. each flight was 4 minutes and used 1600ma from the 3700ma cells so I could fly 8 minutes or so. Longer harder flights will take 4350s or 5000s.
power was good , but it was kinda slow and steady type, i found myself wishing for a 24x15 prop, but 24x12 is all apc makes.

I did have a funny problem maybe goflight can help me with.
During our power checks on the ground the motor hiccuped on full throttle application.
I switched from hard start to soft and was a bit less likely to happen but still did it sometimes. It was almost like the prop was slipping for a sec, but it wasnt.

It never happened in the air.

I have been stick programming the hyperion ESC because I wasnt sure if it would program with my Emeter. Mybe then I could change som settings and stop the hiccup

Anyways its a smooth and precise plane and easy to fly and see!

I cant wait to wring it out, and post some video!


Kevin

[Apanda]

Nice to hear all went well.

Any idea what your static amp draw is at full power.?

[kmp647]

3 more flights yesterday. put my emeter on it but had trouble getting a steady reading

I did get this
5,190 rpm static 24x12e
3790 watts
82 amps

the plane flew very well and had good power flights were as long as 8 minutes
on the lvx3700s (12s)

I had soldered the motor to esc connections and shortened the battery wires

I am still having a problem with a hard stutter on full throttle application

it happen when advancing the stick quickly to full

the motor stutters hard and I have to back off the throttle and get into it softer

anyone have any ideas

I have my controller st up for

soft start
auto timing
8khz switching

I tried reg cutoff and no cutoff same thing
I tried hard start

I am thinking I will try 16khz switching next time out.

anyway the Z504518 is a great motor, it stays very cool and is very quiet too.


Kevin

[F1 Rocket]

Kevin,

The stutter is due to the controller trying to accellerate the motor faster than the load (prop) will allow. I've had this happen on the Hacker A50 and A60 motors I'm using. If you go down in prop size it should improve or if the controller will allow it , set the accelleration slower. The Jeti Spin controllers I'm using have this adjustment and it works really well.

Danny

[kmp647]

I may try a 22x12e or I may cut down a 24x12e to 23x12e

Only problem with that theory is : others (goflight) are using the same setup with no problems

[NumbSkull]

I wonder if the timing might not be at fault. It might be "jumping time". If it's tries to spin up faster, but the magnets and bell cant keep up, the pulses to the stator might get ahead of the bell, and cause it to try and reverse for fraction of a rotation.

It wouldn't be hard to change the timing to a manual setting and try it out.

I not a motor expert, but I did stay at a holiday inn last night...

[kmp647]

on my next flights I will change frequency, then timing and report back

[Fool]

3 more flights yesterday. put my emeter on it but had trouble getting a steady reading

I did get this
5,190 rpm static 24x12e
3790 watts
82 amps

the plane flew very well and had good power flights were as long as 8 minutes
on the lvx3700s (12s)



wow, unless my math is wrong thats 3.85 volts/cell under load.

Jim H

[kmp647]

Yup , its not quite right, the 2 readings were not at the same time, I saw 3790 watts at one point but didnt see/save the reading or see the amps

then I did another run up and saw the meter bouncing around 82 amps

it doesnt add up

I need to do another test

the rpm is a good reading though

and the power was good

the plane flies very well

I am sure your set up will be great!

[kelvin]

Any updates about this model?

Kelvin

[kmp647]

Well I got about 5 more flights in when it was warm in december.

the plane flies great and plenty of power.... but i am stll having issues with a shudder on full throttle application, not sure what it is but its not good , its hard enough that I could see it damaging something.

I made some change on the controller setup, but then the cold and wind set in and I have not flown it again.

I think though the HYP 90 12s controller is a great deal at $199
an the Z5045 18 motor at $239 is a nice setup for any 14 to 16lb plane out there.
the motor mount is rock solid too.

Also flying on 12s 3700ma batteries is not bad at all for duration, I have flown 9 minutes and still had juice left.

The hyperion lvx 4350s or cl 4800s would work great too, and give longer harder flights.

cant wait till some better weather, ( I will be out there as soon as this Ice is gone!)

[Jocke]

Ive had same problem during acceleration and start up on high Volt setups 12-15s, only cure sofar has been Jeti controllers with correct setup.


Nice plane!!! me wants ;)

[kmp647]

Guess I will try the hyp 90 12s controller one more time , then switch to a jeti99 and the spinbox. the hyperion controller seems to work well otherwise
what I dont understand is others are using my exact setup and dont report this issue.
Jocke did you have the same issue on a hyperion controller?

I may try a flight on 10s instead of 12s and see if I get the same problem still.
My guess is it will not appear on 10s.

[Jocke]

Do you know they are using the EXACT same setup as you? same prop, batterys, connectors and so on.

Hyperion controllers are good! but i get little better result even still on the Jeti with demanding outrunners, also there is more parameters you can set on the SPIN. Sofar i have only compared 70A Hyperion and Jeti Advance, not SPIN, but will do so also when i have the time.

If there is some kind of problem maby they can develop and upgrade the software of the controller!?

An exampel is the actro 60, very hard and demanding motor for a controller to handle, with other brand controllers one can load this motor to 2+kw 24"(sometime 25-26") with no problem losing syncro during hard acceleration, with Jeti advance i have loaded it to 12-14s 3,6kw up to 26x15", or 4x24x16" 10s, with Jeti spin with better programming of the timing and acceleration delay my guess is i can load it even more withaout problem, also i think the SPIN controller have better FETTs and faster hardware. Also hoping to puch the predator on 15s 10kw with the help of a final version of the Jeti SPIN 200.

[kmp647]

Well I tested the system out again with the switching put to 16 khz instaed of 8

and it still has the stutter on quick throttle application.
Z50 45 18 12s 3700s 24x12 apcE prop
my emeter recorded this:
41.92 volts

75.9 amps

3,183 watts

5,310 rpm

not bad on cold packs, thats 3.49 vpc and they have been sitting over the winter.

I am tempted to try a castle HV85 speedo as I am familar with them and have the castlelink and software on my pc. it does allow throttle ramp up adjustments

Does anybody think it would solve the problem

castle HV85 $168 shipped

jeti spin99(with spin box) $335 (ouch)


Kevin

[Ed Lyerly]

Kevin,
I strongly suspect that the shudder you are experiencing is due to inadequate timing delay on hard acceleration (Jocke already touched on this). Outrunner motors turning big props are prone to this (as well as protesting with loud buzzing sounds .... like a prop out of balance) when the throttle is opened rapidly. If this is a feature (acceleration delay) that is adjustable on the CC ESC, it will probably be fine .... if not .... I would get the Jeti Spin.
Ed

[Fool]

Kevin,

I had a similar problem with my Hacker setup. On full power pull out from hover it would make a hell of a noise and lose power. We though at first the spinner backplate was slipping on the motor thrust washer. We pinned the backplate to the thrust washer and still had the the noise and power loss. Checked the motor shaft to make sure it wasn't slipping with the motor housing. Everything looked ok. Finally swaped out the Castle 110HV and installed a Spin 99. After 12 flights so far, no noise or power loss. Will have to give Castle a call and see what they think.

Jim H

[F1 Rocket]

IMHO you get what you pay for with the Spin controllers. I have several of them and all have worked flawlessly. The data logging available using the Spin box is pretty cool as well.

Danny

[Jocke]

I would go for the SPIN!

Every time i had this kind of problem on big motor high voltage setup, the Jeti controllers have fixed it when others have failed!, even when other manufactors have tryed to develop and upgrade the controller for me becas of this... they havent been better than the Jeti on outrunners with high load. If you are having these problems losing timing/syncro... dont fly/use it any more, you could destroy motor or controller, to fix it with your curent controller you chould drop down on voltage or load. Its also very important to have good connection between motor-controller and not to long cables. I would use 4mm gold/silver connectors on motor-controller, and 5,5 or 6mm gold on battery-controller.

If you get a SPIN, set the timing, ask Hyperion how high (maby 24-30degres) and start with a acceleration delay of 2sec, 8khz.. start from there and see what happends, if all is ok... try to set the delay lower until the problem starts.

[kmp647]

I will go with the spin99

no flights til then

anyone want to buy slightly used hyperion 12s ESC? ;)

thanks everyone

[blucor basher]

I'm flying this same motor, I've had a devil of a time making it happy on my 110HV. I now have smooth acceleration on a 24" prop, but the timing is not where I want it for maximum power, and throttle response is not so great. This surprised me b/c we had such excellent results with the 5035 on the HV110. Actually, one of our 5035/HV110 planes now has 50 or so uneventful flights, making the power I want for the current project, whereas the 5045 has been tough. Maybe it's time to swap a 35 for the 45.

[Jocke]

I will go with the spin99

no flights til then

anyone want to buy slightly used hyperion 12s ESC? ;)

thanks everyone


Wish you the best of luck! and hope the SPIN will fix your problem :) its a very nice bird!

I have personaly smoked 2 controllers and damage one motor when testing prototype high voltage controllers a while back, now its amazing one can reliably fly and use 12-15s setups and not to worry abaout motor stuttering on acceleration or activate the batterys... the bigger SPINS have very nice softwere and also a great anti spark funktion, no need to change coonectors after every test/flight ;) development have come a long way in 3 years, today one can power modell with 15kw using only one DD motor and one controller.... we live in the future :)

[kmp647]

I'm flying this same motor, I've had a devil of a time making it happy on my 110HV. I now have smooth acceleration on a 24" prop, but the timing is not where I want it for maximum power, and throttle response is not so great. This surprised me b/c we had such excellent results with the 5035 on the HV110. Actually, one of our 5035/HV110 planes now has 50 or so uneventful flights, making the power I want for the current project, whereas the 5045 has been tough. Maybe it's time to swap a 35 for the 45.

Guess that just makes it easier to fork up the $340 for the spin 99

I think its an issue Hyperion would want to know about and fix some how.

I will let them know after I test fly the Jeti....

I think they want their motors to work with their controllers!
and in most all cases they do.

Kevin

[blucor basher]

Mine's a Castle PHX 110HV.

[kmp647]

Mine's a Castle PHX 110HV.

Yeah , I meant $340 for a jeti spin99

Hey what airplane do you have the Z5045 in?

I havnt seen a thread on it?


thanks

Kevin

[blucor basher]

I havnt seen a thread on it?

It's not quite ready for prime-time yet.

but soon.

[kmp647]

I'm flying this same motor, I've had a devil of a time making it happy on my 110HV. I now have smooth acceleration on a 24" prop, but the timing is not where I want it for maximum power, and throttle response is not so great. This surprised me b/c we had such excellent results with the 5035 on the HV110. Actually, one of our 5035/HV110 planes now has 50 or so uneventful flights, making the power I want for the current project, whereas the 5045 has been tough. Maybe it's time to swap a 35 for the 45.

2 questions : what timing did you go to to stop the studder?

are you using the throttle ramp feature on the castlelink programming?

thanks, Kevin

[Apanda]

Hi Kevin



I made up a harness for 3 batteries in series, I will be using 2 5s packs, and 1 2s pack to make a 12s1p 3700 pack for test flights.



How are you Field charging your 5-5-2 packs and what Power Source are you using.?

Thanks
Arthur

[kmp647]

I am using 2 hyperion 12s10i chargers with LBA10 balancers
either hooked to my car battery(engine running)

you can either put 1 charger to 1 battery

or 1 charger to 2 batteries by linking the balancers in series, then they talk to eachother and the charger, works great but the charge rate drops a bit.

or hooked to 20amp power supplies(2) plugged into a 1kw 4 stroke mini generator.$399 US you might find similar unit in UK under the Kipor name.

I also use a hyperion eos 7i to charge the 2s pack

soon I will have some 6s packs so It will be a bit easier, then I will use a 12s10i on each 6s pack and charge at max amp rate it will do!

But I cant do anything til I fix my motor studder/controller problem :confused:

Kevin

[kmp647]

OK so now others are reporting the same problem using the same ESC and motor.
(so its unlikely its something I am doing wrong), or a problem with just my controller

and people are reporting trouble with CC esc to prevent the stutter. I guess its a tough motor to run.

Kevin

[go-flight]

Hi all,

We have noticed the reports some of you have made with regard to the Hyperion 12S 90A controller, and an issue of the motor stalling when accellerated swiftly in high amp setups.

In the past few days, we have attempted to reproduce this occurance using similar setups as the ones you guys use - Z5045, 12S and amps in the 80'ies induced by a large prop.

We are able to reproduce on all controllers we have tried from stock.

In an attempt to 3D optimize the accelleration performance of the Hyperion HV controllers, we have gone too far. We are looking into options of how to remedy this short term, and several options seem possible.

In any case, we have decided to offer a replacement to a new controller with updated firmware to all current owners of the Hyperion 12S 90A as soon as we can. Practical details will follow shortly.

Our ingeneers are already assigned to the task of working on our firmware, and we will report back in this and other threads once we have a good time estimate.

In the meantime, please do not run out and buy another expensive controller - we will take care of you in this matter.

Gudmund Olsson
Hyperion Europe

[NumbSkull]

I believe that is called Customer Support!!!

Good Job Hyperion for stepping up to the problem instead of ignoring it..

[kmp647]

Excellent news, and great customer service from Hyperion as usual.

Now I can go out and by more Hyperion batteries !

[kmp647]

well I fired up the Z50 this past weekend on 12s, I had changed the timing on the controller to soft and experienced lots of motor stalls, then I tried the hard timing setting on the emeter and retested
I had no motor stalls(static testing), I even zinged the throttle stick forward hard from a near stop.

seems funny that hard timing setting would reduce stalls?

anyway I also orderd in some battery packs, 6s 4350s that will have more punch and flight time too.
the nicer weather is here so maybe I will be flying soon if the controller issue can be managed.

Kevin

[kmp647]

thought I would post a pic of my charging setup.
2 hyperion 12s10i with lba10s, iota 55 amp supply, and duropower 1kw gen

today was the first time I tried charging, it worked but I did have the chargers error out once.

generator is nice and quiet. but after awhile I ran out of charged packs

think I need a third charger charging 2 5s packs in series to fly non stop

Kevin

[Ed Lyerly]

seems funny that hard timing setting would reduce stalls?
Kevin

Kevin,
Just for future reference. Hard timing ....say 20-30 degrees advance is for outrunner motors. Soft timing .... say 2-10 degrees of advance is for inrunners . At least, that is the case with my Jeti ESC.
Ed

[kmp647]

Yup, Ed I am used to running hard timing , but hyperions recomendation on the z5045/18 hyp 90 esc is for" auto" timing, that resulted in the stalls
I didnt expect hard timing to fix it so I went the other way to low timing, that made it worse
so Hard timing it is

[Ed Lyerly]

Seems there is the same problem with ESC manufacturers as with lipo mfg's and brushless motor mfg's :( Trying to interpret their specifications is like navigating a mine field !!
Ed

[kmp647]

yup, I am sure its not gone for good (stall) Hyperion has been working on new controllers.
I am just trying to get it flyable til they do.
I think I am there.

Kevin

[mpope1]

I am having glitching issues on a similar conversion. Hangar 9 27% cap, hacker a60-18l, 12s , hv 85 24x12e prop. I have a lot of interference on the rudder servo. using hitec 965mg all around. Running 6v converter off of 2s lipo 1900 mah. Motor has no interference just the rudder. I use futaba 7c ppm 7 chan. reciever. I was told to try a pcm reciever, will that solve the problem?

[kmp647]

try a different servo, then a different receiver.

How is your throttle work? any stuttering issues when advancing the throttle quickly?

thanks, Kevin

[mpope1]

No problems with throttle, but I know what you are talking about with your issue. I have a p-38 with hacker a50-16s motors swinging 17x10 on 5s. We got the same stutter you are having. If you jam the throttlle quickly the motor stutters and eventually goes to full. On a twin its even worse because both motors were doing it and the plane jerks from side to side. We went to a soft start and that cured it, but nowwe are changing to 15 3/4x 13 3 bladed and the problem is back and we cant soften the start up anymore. We are using hacker x-70, gonna switch with caslte 80's. On the glitching issue gonna try what you said, if the pull pull wires are to tight on the rudder can that cause the servo to glitch?

[Ed Lyerly]

No problems with throttle, but I know what you are talking about with your issue. I have a p-38 with hacker a50-16s motors swinging 17x10 on 5s. We got the same stutter you are having. If you jam the throttlle quickly the motor stutters and eventually goes to full. On a twin its even worse because both motors were doing it and the plane jerks from side to side. We went to a soft start and that cured it, but nowwe are changing to 15 3/4x 13 3 bladed and the problem is back and we cant soften the start up anymore. We are using hacker x-70, gonna switch with caslte 80's. On the glitching issue gonna try what you said, if the pull pull wires are to tight on the rudder can that cause the servo to glitch?

mpope1,
You might consider the Jeti Spin controllers. With the spin box you have the ability to program the specific time that it takes to reach WOT from your starting point when you snap the throttle open quickly. So, you can infinitely adjust the "soft start" to your particular setup.
Ed

Also, on the rudder glitching. Have you twisted the servo leads .... especially important if they are long. I have also found that 3 turns around a ferrite ring is helpful on servo leads..... especially the ESC to throttle channel lead. PCM receivers have been more glitch free than PPM for me (Futaba 9C radio ... Futaba receivers).

[mpope1]

I am gonna try pcm, I thought it was just the rudder but now taxi testing it in front of my house is revealing everything including the motor is glitching. This is my first conversion using coreless servos and they hum alot which I was told is normal. My other planes are fine so I no its not my radio.

[kmp647]

well I gave it another shot today. couldnt get the motor to run right/ no full throttle/ like it was reducing power at full
I will have to replace the controller. looks pretty though

[mpope1]

Pcm receiver cleared up glitching problems, unfortunatly on maiden flight someone was on my channel and didnt put the card on the board. I guess it went into failsafe and plane went straight into a dive and would not respond to my inputs and its done. Electronics were salvagable except for hv-85. Surprisingly the hacker a60-18l survived and it was a nose impact. I am considering going to the spread specrum modules that are coming out.

[Ed Lyerly]

mpope1,
Very sorry to hear about the loss of your H9 27% CAP :(.
I hope the offending pilot offered to pay for your loss....... as that is the standard compensation for a mistake like that.
Ed

[kmp647]

Well I have flown my Airwild extra 260 several times now using a jeti spin 99
controller with good results. I have had a few incidents of the controller losing sync with the motor on off throttle down lines. I now avoid going to zero throttle in these situations.

Still the original Z5045/18 motor has been very hot at the end of 7/8 minute flights. So I switched up to the new Z50 45 18 B motor with fan.
Its backmountable too even with the fan, I used a set of desert aircraft 3" aluminum standoffs to secure the motor and it is a clean light setup that would work in any 50cc sized plane.

the DA standoffs are $30 for a set of 4 but they do come with 1/4 20 allen bolts for the firewall end. the other end is tapped 10/32 so you dont need bolts all the way through. they are sturdy and under 4oz.

the old mount was almost 8oz!

I also replaced the alum wing tube with a carbon one losing 3.5 oz

I am now at 15 lbs 6 oz and it flies great, and now the motor stays cool.

Kevin

[R/C Dallas]

I like the stand-offs...been trying to figure out how to do mine. What prop/wattage are you flying with? Do you think it's enough power for an 18-19lb 31% Extra?

[kmp647]

24x12e 3,800 or so watts

I am sure it will fly a 19lb plane but I would ant more power in one.

tough size maybe hacker A100 territory

Kevin

[FASTALJR]

I flew my extra yesterday

Axi 5345/16
tanic 12s1p 5000
menz 24/12 prop
and hv 110, Plane flew awesome, and flew with authority!

Gotta do a little speedo tweaking, but otherwise I am impressed with the plane!

[kmp647]

I had 6 flights on mine today and all went well. average usage was 2,100 ma on 6/7 min flights
I will stretch the packs a bit more next time if its not to hot out
they are 4350s
no controller isuues spin99 works well.

wish I had some video

Kevin

[R/C Dallas]

wish I had some video



Me too! I'd love to see the power... :D

The Hacker 100 would be sweet but at a grand or more for the motor and ESC...I'm going to have to pass on that one right now. Besides, I'm not looking for insane power...just enough to do a decent knife edge loop and have good pull out from a hover. I hope to learn basic and sportsman class aerobatics with this plane while also using it for weekend sport-3d flying. I think the Hyperion will be enough...3800watts (~5HP) at 19lbs will give me around 200w/lb which should not be underpowered. It's just a matter of matching the right speed and thrust to the airframe to get the best performance from there.

Have you checked static and unloaded RPM since going to the Jeti SPIN? All the calcs show around 5800-5900rpm static on 12S with the APC 24 x 12E... I'm really curious what the unloaded rpm is...I would imagine you'll gain another 2-300rpm or so while dropping a few amps at the same time. That would be around 6000-6200rpm, 65-68 pitch speed and 35-36lbs of thrust. I'm sure that would equate to long uplines!

Looking forward to a video ;)

Randy

[kmp647]

the static rpm is 5450, via a tach

the in flight is 6080 via spinbox

its tons of thrust and I bet would work for a heavier plane.

Kevin

[R/C Dallas]

Excellent info...6080rpm should make around 35lbs of thrust. Plenty for what I'm looking for. Thanks!

[Shawnlh]

VIDEO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Please :D

[Skylark64]

How long has any one been flying this plane with CA hinges installed. are the ca hinges holding up? Would you build it a different hinge next time?

skylark64

[Skylark64]

How long has any one been flying this plane with CA hinges installed. Are the CA hinges holding up? Would you build it with a different hinge next time?

[kmp647]

Mine are holding up fine, no issues, proper installation is all thats needed

Kevin