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E-Sky Honey Bee- Lama- Belt CP- E-Smart
› Just finished building my second Grayson Hobby 3D​EPP Sukhoi
03-21-2009 03:34 AM  8 years agoPost 21
tryan02

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Canton, Missouri

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Melnic I think they may give you whatever $20 combo they have on hand. I got a different one than was listed with their plane. Unfortunately the shipping gets expensive the total kit w/shipping is $78.47. They send you a sheet of lasercut foam about a 3 x 3 sheet so it is oversize shipping. Good news is plenty of scrap for repairs.

No Really I am the club President!!!

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03-21-2009 01:46 PM  8 years agoPost 22
racin06

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Indianapolis,​Indiana

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But hey why are we trying to fly a 12oz plane in 10mph winds anyway?
Because we can.

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03-23-2009 09:07 PM  8 years agoPost 23
Melnic

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Columbia, MD,USA

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My EPP kit is OTW.
I Have extra HXT500 5g servos. I think I'll look into putting 1 on each wing for the Ailerons.

What did you fellas use for paint?
I like to spray.

I can just forsee me trying to fly this into the back of my suburban for a landing

My GWS slowstick may start collecting Dust once this gets built.

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03-23-2009 09:17 PM  8 years agoPost 24
racin06

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Indianapolis,​Indiana

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You are going to enjoy your Sukhoi. Yesterday, I flew my HBK2 for 4 flights, then I burned 8 packs through my Sukhoi. I can't get enough of my Sukhoi. Then again, maybe it's because the Sukhoi is my first airplane .

I painted my Sukhoi with Craft Smart acrylic paint which I purchased at my local Michaels'. I applied the paint using a brush. I was afraid the paint may add too much weight to the Sukhoi, but my flight times remain the same as with my first Sukhoi, which was colored with highlighter markers.

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03-23-2009 11:17 PM  8 years agoPost 25
tryan02

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Canton, Missouri

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The GWS will end up in the trash when the sukoi is finished!!!

It is a ridiculously way better plane It has the stability of the GWS with aerobatic ability the GWS will never have.

I dont think I would do two aileron servos it already wingtip stalls. You wont want it wingtip stalling when you drop it in the back of the suburban.

And as far as paint I looked around and saw a can of red and blue krylon fusion and set what the hell. The only problem I saw was the paint contracts the foam a bit warping the control surfaces but comes back easy.

No Really I am the club President!!!

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03-23-2009 11:42 PM  8 years agoPost 26
Melnic

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Columbia, MD,USA

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Slow stick will never get trashed! Just maybe dusty.
I've been using that to test new Rx's for myself or others.
Will post pics once I get it built.

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03-23-2009 11:47 PM  8 years agoPost 27
tryan02

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Canton, Missouri

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Oh but it actually defeats all the properties of aerodynamics!!!! Not only is it a symetrical wing its a square wing!!! Proving anything will fly if you put a big enough motor on it.

just weighed it flying weight is 10.6oz with a 2S 1000mah lipo.

No Really I am the club President!!!

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03-24-2009 12:12 AM  8 years agoPost 28
Melnic

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Columbia, MD,USA

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Can you really get vertical w/ a 2S on this power combo?
No worries, I have 2S 900 as well as 3S 1000's
BTW, the back of my suburban is so beat up, don't think a 12oz plane will mess it up any more than the bats, balls and hockey stick have.
Aileron servos will do nice if I keep it only a couple inches away from the fuse. I'll see how others have done this. I want both aileron throws to be symetrical. Flapperon loops also get really tight.

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03-24-2009 12:27 AM  8 years agoPost 29
tryan02

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Canton, Missouri

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I totally stood mine at a 90 with a 10mph headwind Saturday night at about 3/4 throttle and had a hell of a time getting it back over I let it wingtip stall and brought it around downwind. I havent got to do much FF with mine yet local fields are a little too small I havent got comfortable with it yet but I am willing to bet you dont need flaperons for a tight loop just throttle and elevator management. Stand it on edge and kill the throttle let it flip over backwards and full throttle again.

No Really I am the club President!!!

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03-24-2009 12:59 AM  8 years agoPost 30
racin06

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Indianapolis,​Indiana

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How about installing a gyro on your Sukhoi? Funny video....

Watch at YouTube

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03-24-2009 01:08 AM  8 years agoPost 31
tryan02

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Canton, Missouri

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I saw that and did not understand the sukoi can be hovered with minimal skill I was doing it on my second flight. Just be very careful of a wingtip stall. Even a gyro doesnt stop that it takes more power.

I so badly want to do it again but its about 19mph wind at dusk right now the sukoi would be backing up.

No Really I am the club President!!!

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03-24-2009 04:52 AM  8 years agoPost 32
Melnic

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Columbia, MD,USA

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That was a rather misleading video.
He kept calling it "auto pilot" but he had a rate gyro on it.
I've put Gyros on planks to stabilize them in the wind since the 90's.
I was not the first to do it either.
Big scale guys did it before me.
I just put it on a .40 nitro trainer to fly in heavy winds.
I still have on on my foamie little electric to also keep it stable in the wind. I put it on the aileron so that the wind does not flip it on landings and take offs or while just flying.
I still don't see anyone else doing it. Instead the plank guys pack up and leave when it's windy. For the price of a cheap dual rate gyro they could put it on an extra channel and flip the switch when it's windy.

It dampens the roll rate so I tweek the gain every time I'd fly it.

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03-27-2009 01:48 AM  8 years agoPost 33
racin06

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Indianapolis,​Indiana

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I fixed my aileron throw problem

The first photo illustrates how I had my aileron servo, control horn and push-rods arranged. Under this arrangement, I was getting much more down aileron throw versus up because of the approx. 45 degree push-rod angle between the servo arms and control horns.

The second photo illustrates the changes I made to the arrangement. As you can see, the push-rod angles are now at 90 degrees to the servo arms...which now results in same amount of aileron throw...both up and down. I flew the Sukhoi tonight and was shocked at the increased responsiveness .

Anyway, all I did was glue (using CA and yarn) a shortened toothpick between the double servo arms and single servo arms on the ends.

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03-27-2009 02:00 AM  8 years agoPost 34
tryan02

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Canton, Missouri

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I saw that also so I found out tonight it was fine for me rolls are perfect and coordinated aileron elevator turns are almost 90 degrees. I think as long as one goes high as you found out you just loose a little responsiveness. I am gonna leave mine alone till this winter and buy the new parkflyer RX for my 6EX so I can use dual rates. I am already afraid of snagging the pushrods on the ground as it is. I am getting good at a hovering landing so maybe I can try that.

No Really I am the club President!!!

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03-27-2009 02:05 AM  8 years agoPost 35
racin06

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Indianapolis,​Indiana

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I saw over at the Did You Fly Today thread that you had a good time with your Sukhoi today. There is no doubt that I am now also addicted to airplanes. It was very much fun flying the HBK2, then the Sukhoi, then the Super FP. Now, I can go from flying an airplane to a heli or heli to an airplane without any problems. The first few times doing it, though, it took me a few moments for my brain to tell me what I was flying .

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03-27-2009 02:10 AM  8 years agoPost 36
tryan02

rrProfessor

Canton, Missouri

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I noticed on your first vid in the gym with the sukoi you were still flying a heli. flat all rudder turns but I thought it rude to tease but now your getting into it. I will that rudder isnt for turns its for knifeedge stall turns torque rolls.

No Really I am the club President!!!

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03-27-2009 02:35 AM  8 years agoPost 37
racin06

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Indianapolis,​Indiana

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I enjoy flat turning the Sukhoi . Speaking of the knife edge, I flew some good knife edges this evening .

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03-27-2009 02:38 AM  8 years agoPost 38
tryan02

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Canton, Missouri

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I am gonna work on inverted next before knife edge didnt have much luck with it tonight.

Flat turns those arent cool.

No Really I am the club President!!!

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03-27-2009 02:40 AM  8 years agoPost 39
racin06

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Indianapolis,​Indiana

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I worked also on inverted harriers this evening. What's amazing is how much the Sukhoi will slow down when you raise the nose and feather the throttle .

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03-27-2009 02:57 AM  8 years agoPost 40
tryan02

rrProfessor

Canton, Missouri

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What's amazing is how much the Sukhoi will slow down when you raise the nose and feather the throttle
and even better into a headwind!!!!

I am learning to recover from hovers that can be difficult with the 2S the motor doesnt have the juice to power out of it. Gotta fall out of them and recover.

No Really I am the club President!!!

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 6 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 8787 views
Scorpion Power Scorpion Power
Helicopter
e-
E-Sky Honey Bee- Lama- Belt CP- E-Smart
› Just finished building my second Grayson Hobby 3D​EPP Sukhoi
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