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RE: JL F-22 Assembly, Winter 2011 - 3/16/2012 6:05 AM   
757Driver



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Status: offline 		Hi Rick, can you explain more about the rotary drive you use? Pic or link?

Pics from the install of the servos to operate the lower MLG doors. Each side will Y harness to the upper MLG door servo.



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RE: JL F-22 Assembly, Winter 2011 - 4/1/2012 5:47 AM   
757Driver



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Status: offline 		Added the servos above the fuel tanks to drive the upper MLG doors. Been away working so I've not much to report. Sorry but duty called. I'm going to be using six gear door servos on this install. Two for the nose and two at each main. The two nose gear doors are both analog servos so I'm going to use an old Smartfly EQII that I had laying about. This will let me reverse one of them and adjust the throws of each servo if needed after getting them close with the Down and Locked Programer. I love that thing! Super easy to use.
The mains will use one analog and one digital on each. The upper doors will have more load on them and will get the digitals. The lower doors will be analog. I'll use a Y-harness on each L and R main gear door circuit. Then use the Down and Locked programer to set the travels on the analog servos then I'll simply program each digital to the proper travel with my Hitec programer. Should be fairly simple and very reliable setup. Hope to be back in the shop around the middle of April. The weather is nice and I'm looking forward to getting her airworthy soon.

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RE: JL F-22 Assembly, Winter 2011 - 6/11/2012 12:31 PM   
Mavrik!


 

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 1:01 AM   
mugenkidd



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Status: offline 		Mavrik, I have my CG with the wings off about 3 1/8in ahead of the center of the front spar location.

Jason how's the project coming? Been flying the heck out of mine, only thing better than one f-22 is two!! Here are some pics and videos from the last few weeks, also picked up a cockpit like yours it's really sweet!!

cockpit
http://www.youtube.com/watch?v=RBu25Uqk_gs&list=UU5UlExIUkm0CSaETeKZ0T7Q&index=1&feature=plcp

flying

http://www.youtube.com/watch?v=GPtPHPslfaA&list=FL5UlExIUkm0CSaETeKZ0T7Q&index=2&feature=plpp_video

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 1:04 AM   
mugenkidd



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Status: offline 		and here are some action pics, these were taken at OSU aproximately April 12th ish

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 2:44 AM   
gunradd



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Status: offline 		Any of you guys going to bring your raptors to kentucky jets?

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 2:48 AM   
FenderBean



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Status: offline 		Why does JL finish their jets in gloss? Always wondered this.


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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 3:19 AM   
mugenkidd



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Status: offline 		I would love to go to Kentucky but no time this year.. Maybe next year..

I think the jets are shiny cause they're painted in the mold like comp-arf and a few others.. Looks fine in the air though.

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 11:29 AM   
Mavrik!


 

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Status: offline 		What COG is everyone running?

Took 900 grams of lipos in the nose to get mine to balance at 200mm. Dry weight is 15kg?

Love to know what COG works best?


Mav

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 11:31 AM   
ticketec


 

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quote:

ORIGINAL: Mavrik!

What COG is everyone running?

Took 900 grams of lipos in the nose to get mine to balance at 200mm. Dry weight is 15kg?

Love to know what COG works best?


Mav


Hey Mav,

You bringing the raptor to maryborough Jet's in a few weeks time?

Thanks

dave

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 11:42 AM   
jeff sewell


 

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Status: offline 		Painted in the mould... makes it light but leaves the seams . I abrade the surface with Scotchbrite pads to dull it off...

Jeff

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RE: JL F-22 Assembly, Winter 2011 - 6/14/2012 12:19 PM   
Mavrik!


 

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quote:

ORIGINAL: ticketec


quote:

ORIGINAL: Mavrik!

What COG is everyone running?

Took 900 grams of lipos in the nose to get mine to balance at 200mm. Dry weight is 15kg?

Love to know what COG works best?


Mav


Hey Mav,

You bringing the raptor to maryborough Jet's in a few weeks time?

Thanks

dave


Dave was thinking about it, but need to get the maiden out of the way first!

I have heard it is a good meet, but a hike from Sydney!

Mav


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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 6:23 AM   
757Driver



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Status: offline 		Good maiden. I found the factory CG to be too far aft. Here's the video of my second flight. The first flight was landed with more fuel on board so the CG at landing was uneventful. The second flight was landed much lighter on fuel and the slower the airplane got the worse the instability got worse. After three go arounds I was able to make a landing. The worst part was that every missed approach caused the fuel load to lighten and the CG to move further aft. If I were to build another one I'd delete all flap and aileron servos. They are not needed unless you want them for scale or some creative flight control mixing.

Brakes are awesome and the gear is the strongest I've ever seen. I like the airplane and will post my figures after more testing.
http://www.youtube.com/watch?v=Tewu8W0b_qU&feature=youtube_gdata_player

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 6:26 AM   
757Driver



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Status: offline 		I have some build pics to post Monday. Off to work today.

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 1:58 PM   
ron Sweeney


 

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Status: offline 		I'm interested in your proposal to fly purely on taileron control. I fly an Avonds F15 with this set up. I have an unflown F22 and would be interested to know the control throws if and when you use this arrangement. I have already fixed my rudders and it would be good to fix the flaps and ailerons which previous flyers seem to have commented on. The weight reduction would also be a benefit. Ron.

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 2:10 PM   
sailing1


 

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Status: online 		RE: JL F-22 Throws and CG - 11/24/2012 4:37 PM


Canadian Man





Ron this is from another thread by 757Driver. Looks like others are alleady using the elevon setup.


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Status: offline Similar to above. Mine only has elevons. 45 mm each way for travel.

My cg is as per factory. Yes it ends up being nose heavy because of tank location.

From start of flight to end typically 2 clicks of trim needed.

Wonderful flying jet!

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 4:30 PM   
mugenkidd



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Status: offline 		Congrats on the maiden, looks really good. Where did u get the afterburner rings ? I like those a lot!

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 6:09 PM   
ron Sweeney


 

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Status: offline 		Many thanks, Ron

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 6:11 PM   
757Driver



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Status: offline 		I will fly the jet in a couple weeks weather permitting and get some taileron only data for you.
What fuel tanks are you using?

Kidd, the AB's I ghot from Dream Works.

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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 8:07 PM   
Jeremy_D



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Status: offline 		I flew mine on taileron but also used aileron mixed in just to take some pressure of the elevator stabs, worked a treat and kept the roll rate crisp and responsive, I didn't use flap ever. If you already have your ailerons hooked up I would use them.


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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 8:27 PM   
ron Sweeney


 

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Status: offline 		Jeremy, What control throws did you use? Ron.


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RE: JL F-22 Assembly, Winter 2011 - 11/25/2012 11:01 PM   
Jeremy_D



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Status: offline 		Hi Ron,

It's being a few years since I had it but from memory I used about 1cm of aileron throw and half of whatever my elevator throw was for the taileron roll rate. I used the throws that the guys from Hawaii were using at the time. I think it was a user by the name of Pylot who gave me the throws on another rc jets forum at the time.


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RE: JL F-22 Assembly, Winter 2011 - 11/26/2012 12:04 AM   
Canadian Man


 

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Status: offline 		Regarding my post from the other thread. My f22 is a sky master version. So disregard fuel tank comment.

It does fly great on tailerons though! I do have rudders but there is far too much coupling.
I have set a mix up but still don't use them. I do use rudders for speed brake. Both rudders go in. Works good too.

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RE: JL F-22 Assembly, Winter 2011 - 11/26/2012 10:51 PM   
757Driver



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Status: offline 		Mav, 200mm should be ok for first flight. Be sure to program 40% expo to slow the stabs down if you use the full 50mm travel. I settled on 80% DR of the 50mm with 40% expo. I dont like my sticks touchy, especially with a fast airplane.

What fuel tanks are you running?

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I love it when my airplane is on fire...as long as the fire stays inside the engine!

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RE: JL F-22 Assembly, Winter 2011 - 12/1/2012 8:56 AM   
757Driver



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Status: offline 		Last bit of pictures from the finish up.



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Thanks, Jason
I love it when my airplane is on fire...as long as the fire stays inside the engine!

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