Scratchbuilt F22 Raptor Pictures

Started by VC, March 05, 2010, 06:23:46 PM

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VC

Finally finished the airframe and mounted the engine. In keeping with Col. Sundaram's instructions / directions / request, I am posting pictures of her before I attempt to fly her!  ;D ;D ;D

Could have done a much better job had I not rushed it towards the end. I just wanted to get her ready..............

I am calling her "scratch built" for a reason. Though I did use a plan, I deviated quite a bit on the nose section, engine intakes, engine mounting, aft section of the fuselage to name a few. Purists, please excuse. :bow:

Construction is out of high density thermocol reinforced with bamboo strips. Fins and elevons out of Depron. AUW without battery is 260 grams.

Hope you guys like her and I sincerely hope she flies  ???.


Cheers!

VC
Growing old is mandatory, growing up is optional!

VC

One more......... Will post some build thread pics later.
Growing old is mandatory, growing up is optional!

dinil

very cool plane

buy how r the sighs made

VC

I think you mean the markings. Downloaded from the net and reduced to semi scale.
Growing old is mandatory, growing up is optional!

izmile

Very neat. I bet she flies better than your expectations..
"Anything can fly" - SPADs just prove that!

ujjwaana

#5
KUDOS!! VC Sir!!!  they look Fantabuls... Hope I finish mine this week end!

I was doing some reading of Andy Lenon's R/C Aircraft Design book for the query you left on my build thread. I guess the sharp edgy nose design you followed would be better for reducing drag and make the effective wingspan more tapered.

One small doubt. Is the wing-fuse section totally flat ? actually the vertically split nose section introduces a little 'curve' in the wing cord, thus forming something like Eppler E214 airfoil (reason some people cut the nose part before the wing break). It is very critical for the effective lift you would achieve and the stall patterns.

You motor pod looks too good! do share the design! any reason not putting the motor shaft aligned to the Fuse/Wing plane ? With CG more towards top, are are making the plane more agile ?
Futaba 8FG Super | HK-450v2 | FA-22 Raptor |AXN Floater-Jet | FunJet | Black Horse Edge 540 | Amp Master 015 | 2.3M Big Brother

merog

Cool man, you got some good artistic skills... keep goin'!
MEROG

www.merogdesign.com

VC

Thanks Guys! Ujjwaana, give me some time to recuperate, I am pooped and am not thinking straight right now. I have been working non stop on this baby for the last 17 hours. The engine mount was a killer, I will post a build thread on that later.
Growing old is mandatory, growing up is optional!

sundaram

#8
"Congratulations VC"   Man she is an absolute beauty. {:)} {:)} {:)} {:)} I cannot wait to see the results till you get her up in the air.
   
She surely will fly as well as she looks.

Your modelling skill is absolutely marvellous.  :thumbsup: Please post some photographs of the under belly also.

Have you decided on where to fit the battery? By the look of it CG surely seems to up ahead. You may not have much leeway to move the battery ahead. You may end up mounting the battery right under the motor mount.

To begin with please surely add some reflex to the elevons. You may trim the reflex down later based on the flying characteristics.  


izmile

Wonderfull build. I like the contrasting black and white color scheme.
"Anything can fly" - SPADs just prove that!

sandeepm

Fantabulus built..........good luck
Fly high if you have good set of batteries.....!

VC

Thank you, Thank you, Thank you!!!

Col Sir, my job is to build. As a flyer I am a beginner and rely on others. I am printing out your instructions and am going to pass it on to the Pilot, the day she maidens.

Izmile, inspired by you,  I have just completed a metre long tow glider out of coro. Planning to RC it after initial test flights. Will post some pics soon.

Sandeep, my friend, all the best for your Blu cub, she is looking good and I am learning servo / horn linkages from your photos. Will PM you soon on that aspect. Thanks!

Gratefully,

VC

Growing old is mandatory, growing up is optional!

ark001

WOW!!!!! SPECTACULAR........ Really, it is awesome....... Couldn't have imagined a better one....... Fortunate to have seen the various transitions it went through...... Inshallah, she will definitely fly!!!!!!! Fingers Crossed......

VC

Insha Allah ark001! Yes, you have seen the various stages of the build. Thanks for being there. Hope to maiden her soon, want you to be there with me when she takes off or................ :'(

Cheers!

VC
Growing old is mandatory, growing up is optional!

ankur

fabulous build vc sir
from where did u get the plan??
and of what is it build???
it seems like thermocol
can u post the size and other specs of the model?
Ankur Singh,
Aged 14-Studing in Class 10th

VC

Thanks Ankur. If you want the plan, let me know, I will post it to you. Yes, read the initial post, it is indeed Thermocol. The next Raptor will be out of Depron. I have already started the build and ark001 will be building either the Rafale or the MiG 29.

Cheers!

VC
Growing old is mandatory, growing up is optional!

ankur

Ankur Singh,
Aged 14-Studing in Class 10th

VC

#17
Length : 29 inches
Span   : 21 inches
AUW (without battery) : 260 grams
2 X 9 gram servos
Brushless motor 2805/1400KV
Brushless - ESC-18A
Master Airscrew PROPELLER 6*4[pusher]
4 Ch Tx and Rx

Battery : Awaiting suggestions........... ;D

What do the experts feel about the above combination?

Can someone suggest the cheapest Battery pack? Once I am sure that she is airworthy, I will invest in the Li Po pack. Right now, for short flight durations, can I use a conventional 6 X AAA / AA Ni Cd 750 mAH battery pack (weight approx 80 / 110 grams). This will push up the AUW to 340 / 370 grams.

Cheers!

VC
Growing old is mandatory, growing up is optional!

allthatido

Now thats a nice and clean build VC !!!!!!!!!!

Great going... {:)} {:)} {:)}

ark001

Well VC, thanks for the faith, and sincerely look forward to work on the same..... CONGRATS once again.....!!!!!!!

vinay

#20
oh, so sweet  :-*

Can you post some pics of where you have mounted the electronics? Also some pics of the bottom of the wing pls.

VC

Growing old is mandatory, growing up is optional!

VC

All the Seniors / Experts,

Please read the specifications of the aircraft listed above and help me out with your suggestions. Does everything look alright to you, or do I need to make any changes? Also please go through the battery issue and advice me.

Regards,

VC
Growing old is mandatory, growing up is optional!

ankur

a question to others-using a 2s1p 850mah 20c 7.4v lipo pack will do sir's job or not?
Ankur Singh,
Aged 14-Studing in Class 10th

VC

"a question to others-using a 2s1p 850mah 20c 7.4v lipo pack will do sir's   :argue: job or not?"

What he is trying to say is :

"a question to others-using a 2s1p 850mah 20c 7.4v lipo pack will do VC's job or not?"  ;D ;D ;D
Growing old is mandatory, growing up is optional!