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HomeAircraftFixed-WingFixed-Wing Main Discussion › The official plank thread.
04-26-2010 10:59 PM  8 years agoPost 281
tryan02

rrProfessor

Canton, Missouri

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A gyro on the rudder is child's play
That means there are a lot of children in this hobby.

Got to admit though thought about it myself putting a sub-par $20 gyro on to see what it would do.

My rudder is super sensitive and with the .32 helicopter motor on a .36 size plane it is super light and tons of power. I can do knife-edge flatspins Well knife-edge flatspin it falls out after the first one.

No Really I am the club President!!!

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04-26-2010 11:11 PM  8 years agoPost 282
spaceman spiff

rrKey Veteran

Tucson

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I tried that briefly on an old Morris profile, using an analog servo and a simple rate mode gyro on rudder. It did make it a little easier to learn to hover. If i had it to do again i would have used a faster servo to get a bit more help out of it.

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04-26-2010 11:55 PM  8 years agoPost 283
tryan02

rrProfessor

Canton, Missouri

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I am learning to hover I cant get all the things coordinated well enough when I get it vertical I am usually climbing and if I back out of the throttle to stop climbing I stall and wing over. If I get past all that I end up over correcting with too much rudder and wing over.

Anyone got any tips or is it just like getting the first hover in heli's? It just happens after a while.

No Really I am the club President!!!

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04-27-2010 01:38 AM  8 years agoPost 284
john howard

rrApprentice

Deatsville alabama

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How Is the cg on your airplane?lot of factors in learning to hoover.I learned more on a foamy and went to a u-can-do for a short time and from there to giant scale.The main thing I worked on was pedaling the throttle to keep my airplane from climbing or dropping to fast.

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04-27-2010 02:22 AM  8 years agoPost 285
tryan02

rrProfessor

Canton, Missouri

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My CG is dead on manual specs 4 or 5 inches back from leading edge. I thought a tail heavy plane would be easier to hover? I am having trouble with the throttle I cant get to a sweet spot I am climbing a bit or falling backwards and the wing tips over on me.

BTW great photos!! I have a 25% 40cc gasser but just fly sport aerobatics with it. Its my favorite plane.

No Really I am the club President!!!

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04-27-2010 03:03 AM  8 years agoPost 286
john howard

rrApprentice

Deatsville alabama

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When you pedal the throttle It has to be within what it takes to climb out and falling.no more than It takes to bobble up and down a small amount.you don't want to pull the throttle back to much.it will be better to climb some and not let It drop.Does It always fall the same way on the wing?It will be easier to learn with It tail heavy but to much will make it pitchy while flying and also pitchy on landing.Just past the aft cg seems to work well for me.Also have you set the latteral cg?It will make a difference In the falling over on the wing.the falling back may be from the cg being nose heavy If It Is by the specs.Also what airplane are you trying to learn on?

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04-27-2010 03:41 AM  8 years agoPost 287
racin06

rrKey Veteran

Indianapolis, Indiana

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Video: Working on knife edge spins with my yellow Kalteisen EPP Extra 260
Tonight was a beautiful evening to fly! I performed my 7th and 8th flights on my new EPP Extra 260. The 3DHS Omega 103g motor is a powerhouse...awesome vertical!

Setup:

- Non-painted Kalteisen EPP Extra 260 Airframe
- Valspar Basic Colors Spray Paint - Yellow and Blue (underwing stripes)
- 3D Hobby Shop Omega 103g 1030Kv Motor
- APC 12 x 6E Prop
- Hobbywing Pentium 40A ESC w/3A UBEC
- Towerpro MG-90 Metal Gear Servos
- 3D Hobby Shop Slick 42 in. Carbon Landing Gear
- 3D Hobby Shop 42 in. - 47 in. Rear Wheel/Assembly
- Scotch 893 Taped Control Surface Hinges
- Spektrum DX7/AR6110
- Zippy Flightmax 11.1V 2200mAh 25C Lipo
- AUW: 31.2 oz.

I primarily worked on knife edge spins. I'm progressing rather well with this maneuver, which certainly isn't easy to perfect. Also, I decided to shave a little off the bottom of the rudder on take-off .

Once again, thanks to Mrs. racin06 for operating the video camera. Though she did seem to periodically include that tree in the footage. She said that she wanted to add a little scenery to the video .

Watch at YouTube

http://www.youtube.com/watch?v=7GD8Kuq9XQI

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04-27-2010 03:44 AM  8 years agoPost 288
PBusch

rrKey Veteran

Minnesota

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Anyone here have a PA MX? Just ordered one, can't wait.

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04-27-2010 03:55 AM  8 years agoPost 289
spaceman spiff

rrKey Veteran

Tucson

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falling back may be from the cg being nose heavy If It Is by the specs.
+1 that. The specs are almost always nose heavy. Best way to tell IMO is trim it out in fligt then flip it upside down, if you are feeding it down elevator to keep it level it's nose heavy. ive seen up to in inch between "spot on" (spec) and a balanced plane that actually flies straight.
Anyone here have a PA MX? Just ordered one, can't wait.
i ordered one a week ago, yellow. haven't heard anthing, not in stock i guess. Patience is one of the many virtues i do not have.

edit: On its way!

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04-27-2010 04:12 AM  8 years agoPost 290
racin06

rrKey Veteran

Indianapolis, Indiana

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I received my MX a couple of weeks ago from my wife for my birthday. I hope to have it up in the air in a few weeks; however, I'm taking my time. I need to bang my 42 in. EPP Extra 260s around a while longer before taking the MX to the skies.

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04-27-2010 04:19 AM  8 years agoPost 291
PBusch

rrKey Veteran

Minnesota

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Me too, I don't even have mine yet and I'm scared of it.

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04-27-2010 08:07 AM  8 years agoPost 292
Spitfire1

rrElite Veteran

Perth Australia

My Posts: All  Forum  Topic

Ok burned out my motor, appears to be locked up solid (wont turn).

Still cant seem to find out if to get a small diameter prop or a prop with a lesser pitch, to reduce amps?

I dont know what to do, maybe I was just unlucky.

Running my 6s packs with the end points down was only about 80 amps.

I have 14/7 prop, too put less load on the motor should go for a 13/7 or 14/6 (if any of them actually exists I dont know).

I dont need all the power/speed I have at 80% on full throttle with the 14/7, but its just too hard not to use it when its there, I need to figure out what prop so I can order it with the new motor.

Some people are telling me a smaller prop will spin faster and draw more amps, and some people are telling me a smaller prop will draw less amps, I dont know what to do.

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04-27-2010 08:32 AM  8 years agoPost 293
spaceman spiff

rrKey Veteran

Tucson

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A prop is under 4$ just try it.

available APC sizes:

http://www.apcprop.com/pindex.asp

13x8 13x6.5 are available in e versions but you are not really limited to e versions. Narrow blade nitro sizes would do fine as well.

Sure you burned it out?

i had one stop because the out-runner housing moved back on the spindle and jammed against the stator housing, i just loosened the set screw, re positioned... good as new. hope you are as lucky.

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04-27-2010 08:39 AM  8 years agoPost 294
Spitfire1

rrElite Veteran

Perth Australia

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****, maybe thats whats happened I havent got the motor off yet.

And just ordered a new one

I ordered an 12/8 prop also.

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04-27-2010 08:53 AM  8 years agoPost 295
Spitfire1

rrElite Veteran

Perth Australia

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i had one stop because the out-runner housing moved back on the spindle and jammed against the stator housing, i just loosened the set screw, re positioned... good as new. hope you are as lucky.
I think this is whats happened, but I dont know how Im going to fix it?

Theres one set screw, when I went to losen it it was already loose.

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04-27-2010 09:50 AM  8 years agoPost 296
Spitfire1

rrElite Veteran

Perth Australia

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Ive got the motor loose somehow, but Im baffled.

Why did it happen if the prop is pulling the motor apart

I can push the motor caseing in so it rubs on the housing, but the prop should be allways pullin it away so it doesent, how does this happen, how can I stop it happening again?.

Before the motor was completley locked up, i dont know if i should just put it back together and fly, and I dont understand why it happened?

I hope I havent dameaged my esc, the motor was makeing a clicking sound when it was locked up, but now its free, I havent spooled it up but Im sure it will work, just dont understand how this could of happened if the prop is always pulling on the motor.

Ive just had a thought, when your off the throttle and air flow is spinning the prop, maybe this can push the motor together causeing it to lockup?

Yes it would How can I stop the motor from squeezing together and locking up when Im glideing under no throttle?, I dont know what Im going to do, at least I have another motor ordered, but that could be a week away.

EDIT: just checked none of my heli motors do the same thing, if you push them together they dont rub.

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04-27-2010 04:04 PM  8 years agoPost 297
spaceman spiff

rrKey Veteran

Tucson

My Posts: All  Forum  Topic

The magnets or a rough landing might do that. Doesn't take much if the set screw is loose.

enjoy.

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04-28-2010 12:31 AM  8 years agoPost 298
deckerv

rrVeteran

Wellsville, NY

My Posts: All  Forum  Topic

I've flown planes for about 29 years, and just now going to sell off most of my plank stuff. Going to stick with Heli's. Already sold my trailer and a short kit for a Ziroli P-40... now gotta sell the rest of the fleet

Loved the planes, but my interest in them started to dwindle when my dad died in 93... we did it together as a father/son team.

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04-28-2010 12:52 AM  8 years agoPost 299
Spitfire1

rrElite Veteran

Perth Australia

My Posts: All  Forum  Topic

The magnets or a rough landing might do that
Problem is, if I push the motor with a bit of force with my hand it still spins freely, but if I push it a bit harder it scrapes, the harder I push it the more it scrapes(metal on metal) .

When a planes flying along fast, diveing or even on landing aproaches how much pressure is pushing the prop by the wind thats spinning the prop? I would think quite alot, maybe enough to cause it to grind together, ultimately locking up like it did.

Whats worse, is I think Ive blown up the motor in my car too.

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04-28-2010 04:25 AM  8 years agoPost 300
hbk2owner

rrKey Veteran

indianapolis, Indiana

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well yet agian i got another nitro plane. its a edge 540t. anyone heard of them?

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HomeAircraftFixed-WingFixed-Wing Main Discussion › The official plank thread.
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