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Sep 23, 2007, 11:54 AM
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frankyfly's Avatar
Discussion

F-22 coroplast plan wanted


Recently I got some coroplast.

Does anybody has ever build an F-22 raptor pusher jet or similar ?

Do you have some link to plans to be used ?

T.I.A.

Franky
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Sep 23, 2007, 04:27 PM
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kevingill's Avatar
Hiya,

What thickness of coroplast have you laid your hands on?

I've thought about making a coroplast Eurofighter Typhoon using depron foam plans, but the wife would kill me
There are several F-22 depron foam plans around - just a thought.
Alternatively, you could start with a Mugi and add-on (so to speak).
Sep 24, 2007, 03:47 AM
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frankyfly's Avatar
Thank Kevin,

It's a thin board. It shoul be 2 or 3 millimeter.
I thought about using the foam plan. The coro I have is too thin, I have to solve for the flexibility adding some bamboo skewers and or CF roads.


Franky
Sep 25, 2007, 03:20 AM
Hack of all trades...
Smooth Spanky's Avatar
Frankyfly:
I know I've seen guys build coro jets, but wasnt' able to find any on this forum for you. I'd suggest checking over at spadworld, I know there's some stuff there, but I'm not sure if they are pushers or not...worth taking a look though.

Smooth
Sep 26, 2007, 09:18 AM
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frankyfly's Avatar
Thank you Smooth,
See what I've buid so far.
I got the plan from the foam scratchbuild forum here .

Franky
Sep 26, 2007, 10:37 AM
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frankyfly's Avatar

Securing FINS.


This is the way I fix the fins to the fuse.

Franky
Sep 28, 2007, 04:25 PM
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kevingill's Avatar
Well it's looking pretty good so far!

The method of gluing the fins is similar to the way I build a Mugi.
I usually tape the joint or place a bead of hot-melt glue to give a good hold.

What battery/motor/prop are you thinking of installing?

I've seen a recent thread on the scratchbuilt foamies where an F22 weighed 7oz all up. I haven't noticed a lot of difference in weight between thin correx and foam built wings to be honest, but correx just bounces whereas foam breaks up!

Looking forward to more build pictures.
Sep 29, 2007, 04:14 AM
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frankyfly's Avatar
Kevin so far the bare frame is about 5 oz (150 gr).
I plan to stay around 7-8 oz (250-300 gr) AUW.

This is the motor I ordered.

Franky
Sep 29, 2007, 04:19 AM
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frankyfly's Avatar
Some building update...

Removable nose for hard landings.

Franky
Oct 03, 2007, 05:09 AM
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frankyfly's Avatar
Some update..
It weights 7.5 oz. as it is.

Franky
Oct 17, 2007, 02:58 PM
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kevingill's Avatar
Any update on the F-22 Frank?
Keen to see how the fella flies!
Oct 18, 2007, 01:09 PM
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frankyfly's Avatar
Hi Kevin, I'm still searching for the right motor.
Probably I'm going to use a micromotor (Kv 2100) or a higher torque (Kv 1800) with 3S and GWS 7/3 prop.

Due to work commitment I should have happy hours in two weeks time.

Franky


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