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Yellow F22 Build

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Yellow F22 Build

Old 04-18-2013, 04:41 AM
  #376  
gunradd
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Default RE: Yellow F22 Build

Installing some more power!!!! K170

I hope to get some flying done this weekend at an event at my home field but the weather is not looking so good. Got a week and a half until TopGun so need some practice. This engine will help me get out of the grass with a more scale like takeoff.
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Old 04-18-2013, 05:21 AM
  #377  
bigbri
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Default RE: Yellow F22 Build

You are going to love that turbine in th F22. I am flying mine with a K170 also! Power to spare. Grass takeoffs a breeze!!!
Old 04-18-2013, 05:29 AM
  #378  
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Default RE: Yellow F22 Build

I hope to see yours in Kentucky this year! Got any pics of yours? Cant ever see enough of them.

BTW no such thing as power to spare when im flying lol. They let me try the 180 and Dirk who was spotting said I was going to bend my throttle stick if I pushed any harder forward. Was very nice doing hard loops with thrust vectoring and still being able to accelerate in the vertical!
Old 04-18-2013, 07:24 AM
  #379  
tp777fo
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Default RE: Yellow F22 Build

Dont you feel sorry for all the Chinese arf flyers who worry about their jets coming apart? These YA Raptors perform outstanding with big motors and are built like tanks. Love mine! Thanks YA for such a great jet.
Old 04-20-2013, 05:55 AM
  #380  
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Default RE: Yellow F22 Build

Got to take the new engine out for a spin yesterday!!

The first start it cranked right up. I thought I would have to tweak some settings but no I did nothing. It fired right up. Power is amazing! I only got 2 flights due to the heavy crosswind. But first takeoff I went straight vertical with it. The 170 is a perfect match for this plane. Not to mention it was nice landing each time with the engine still running

Very big thanks to Barry at Kingtech for making it all happen.

If I get a break in the weather then I will get some more flying today or tomorrow.
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Old 04-20-2013, 06:59 AM
  #381  
George
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Default RE: Yellow F22 Build

Good to hear Kris!!

See you at KY![8D]
Old 04-22-2013, 07:32 AM
  #382  
gunradd
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Default RE: Yellow F22 Build

Thnx George

I put 10 gallons through the K170 last weekend! No flameouts and no dramma. Just a great engine

Pics from the weekend.
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Old 04-22-2013, 07:34 AM
  #383  
gunradd
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Default RE: Yellow F22 Build

more pics

All of these photos are from my friend Nick Brown. Great pics Nick!
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Old 04-22-2013, 09:35 AM
  #384  
Gixxy
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Default RE: Yellow F22 Build


ORIGINAL: gunradd

more pics

All of these photos are from my friend Nick Brown. Great pics Nick!
No problem [8D]

-Nick
Old 04-23-2013, 03:56 AM
  #385  
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Default RE: Yellow F22 Build

Started work on the outboard gear doors today. On the FS raptor these are pretty plain so pretty easy to do. The chances of seeing them are slim on the model but at least now I know they are done.

First I sanded them down. Then epoxied on some thin balsa sheeting. After that I made the gear door up-lock hook. I also made a support bracket that the real one has. Was pretty easy and looks a lot better then stock fiberglass.
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Old 04-23-2013, 04:10 AM
  #386  
gunradd
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Default RE: Yellow F22 Build

all done.
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Old 04-23-2013, 04:27 AM
  #387  
ddennison
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Default RE: Yellow F22 Build

Nice work on your F22.

I wish I had a runway - I would have kept mine!

I did enjoy building that plane, the structure was light but very nicely built and the landing gear were great.

Have fun with it.

Dave
Old 04-23-2013, 06:56 AM
  #388  
Shaun Evans
 
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Default RE: Yellow F22 Build

Gunn,

That's the perfect engine for that plane. That's what I installed in the one I built in this video. Don't pay any attention to the first landing. It was a mayday. Look at the fly-by's, though, and you can see that this engine gets the job done. This runway is less than 500', too!

http://www.youtube.com/watch?v=qZdvPheV00U
Old 04-23-2013, 08:55 AM
  #389  
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Default RE: Yellow F22 Build

I agree I've got a jet central rhino in mine (also 170n) and couldn't be happier.
Im almost a little scared to do full throttle passes as she gets going fast. She's one of fastest scale
Jets I've seen when you push it. Has anyone else hysoled the vertical stabs? Mine were not but I'm thinking about
doing it as I never plan to remove them. Just a little worried one may decide to go bye bye in flight one day.
Old 04-23-2013, 09:04 AM
  #390  
gunradd
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Default RE: Yellow F22 Build

Well mine are not hysoled in and I flew it with a Kingtech K180 at Florida jets and I had it full throttle going about as fast as it can go many times with no problems. I was also doing some very hard high speed turns with it at full throttle and everything was rock solid.

Keep in mind I got rid of the stock horns that yellow puts on the rudders. I think these are what caused flutter and the problems with others. I used big BVM carbon horns with max mechanical advantage along with 8611 servos to drive them.

I am flying the Kingtech K170 now and I have been really beating on the plane in the air and its been perfect.

I agree this plane is very slick in a straight line unlike the F15.
Old 05-04-2013, 04:07 PM
  #391  
tp777fo
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Default RE: Yellow F22 Build

Well it is with great sadness to inform all of the demise of my great Raptor. Was flying today and during a high speed pass it began a gentle uncommanded climb and roll. I got it to continue the roll to get it away from populated area and as I got the 180 degree turn complete it began a series of left and right rolls that were uncommanded. It then started a continuous roll that was unstoppable. I killed the engine and watched it go straight in from about 500'. There was a huge geyser of fuel when it hit the ground but no fire from the impact. Before we could get to the site, the batteries sparked and started a fire. Luckily it was a cotton field that had not been planted yet.Total loss, absolutely nothing survived. Big bore Rhino will not be economical to repair when you factor in the cost of all the solenoids, pump, ecu and damage repair. I handled it pretty well because no one was hurt, property damaged and such. If I had rolled right it might not have been as fortunate. Inspection of the wreckage (what little there was) showed both aluminum stab control arms damaged. One was broken from the impact and the other the end had melted off. I suspect the pipe failed and toasted all the wires, servo, control arm and all. The pipe was severely damaged by the impact and cant really tell if it failed or not, but the melted aluminum control arm leads me to believe that was what happened. There was no smoke from the airplanein flight to indicate pipe failure but I got the motor shut down pretty quickly. Recommend everyone take look at their pipes. My jet was going on 5 years with 200-250 flights. On to the next project..................
Old 05-04-2013, 06:01 PM
  #392  
ddennison
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Default RE: Yellow F22 Build

Hi Tom,

Sorry to hear about your loss. I think we had started out on these roughly around the same time a f ew years ago.

Try to enjoy the new "opportunity" of a new project

Sorry again for the loss,
Dave
Old 05-04-2013, 11:18 PM
  #393  
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Default RE: Yellow F22 Build

Hi Tom

Again sorry for your loss, 

You will recall I  had the same end result due to a different issue that lost my 22.

As you say it is time to move on, but a year later I still miss mine it was the best jet I have ever  owned

Ian
Old 05-04-2013, 11:47 PM
  #394  
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Default RE: Yellow F22 Build

Holy crap Tom sorry to hear, were you running the yellow pipe?
Old 05-05-2013, 06:05 AM
  #395  
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Default RE: Yellow F22 Build

Sorry to hear of the loss.

Thank you too for sharing on the suspected cause for your crash. This pipe tends to develop a concentrated heatspot? That's the only way I think a pipe can fail other than suction collapse.
Old 05-05-2013, 06:46 AM
  #396  
tp777fo
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Default RE: Yellow F22 Build

It was the Yellow pipe. Let me be clear though, the plane was 5 yrs old and had a lot of flights with a Rhino. If it was the pipe that failed it was my fault for not checking it more often. I am not blaming Yellow for anything. This is an absolutely great jet and I will eventually get a new one.
Old 05-05-2013, 06:58 AM
  #397  
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Default RE: Yellow F22 Build

Tom,
Sorry for the loss of your F22! []. With all the use you had on it I bet it feels like a loss of a family member.
What do you think will replace it? An Avonds? Btw, I have your f-16 kit if you wish to go That direction.
Old 05-05-2013, 07:49 AM
  #398  
tp777fo
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Default RE: Yellow F22 Build

I have a BVM T-33 to finish. Not that much left to do. However, I am thinking about selling it when finished and buying a Moki 250 for my new CARF Corsair. I'll keep the Viper in mind, thats a real nice jet also.
Old 05-05-2013, 01:24 PM
  #399  
gunradd
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Default RE: Yellow F22 Build

That sux Tom!

The only reason I found my pipe failing was because it was yawing real bad during hard thrust vectoring and it made me look into it more.

My yellow Pipe failed in the first 6 months of operation. I think the normal pipes are fine but the ones used for thrust vectoring are flawed. The double wall ends before the end of the pipe and because of that it does not get suction from the inside pipe exhaust flowing out. That makes the double wall not get enough air around it and it runs hotter then it should. The stock yellow pipe non thrust vectoring should be fine.

My tams pipe is smaller dia in the back so the outer wall is inside the thrust vectoring so it sucks the air through the double wall. Im flying mine with a 170 now and full throttle allot beating the crap out of it. So many this week where blown away with the top end speed.

Tom would love to see you do another one!
Old 05-05-2013, 02:44 PM
  #400  
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Default RE: Yellow F22 Build

This is a bit concerning I have a Yellow Thrust vectoring pipe on mine with a Rhino as well. I understand that you had a few hundred flights but I know Gunradd recently replaced his with a Tams, Is that correct gunradd?

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