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Avispad Build Log

Started by VC, June 24, 2012, 11:23:29 PM

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Snehal.Samar

Aha! so VC need little ones(as per post #27)... But how can we suggest u on dat?!
Snehal Samar

KALYANPRODHAN

#126
Snehal,
As the thickness of wing is more, you got more strength. But higher AUW require reinforcement.
But with entire 3mm 36inch wingspan Coro cessna single coro wing, I have airframe weight of 325 gm only.
Build thread wil be available after completion of thread picture. Decoration and control gear fixing is pending only.

Thanks
We have to unite and to prove ourself to make indigenous products as well as marketing / Canvasing them. I'm sure we must achieve success if we try unitedly.

VC

Snehal you wicked fellow! You missed my point entirely. :giggle:

Pictures being uploaded shortly. Please stay tuned................
Growing old is mandatory, growing up is optional!

Snehal.Samar

So kalyan daa ..if i have auw under 1kg is it ok to have no spar? I assumed, spar is mainly added for dihedral wings and it is useless to add spar for no dihedral wings.
I'll waitng for the thread daa.
Awaiting vc's avispad pics.
Snehal Samar

samlikespad

VC, bring her out... let us have a look at the beauty ;)

Snehal.Samar

@vc .its seems dat aapke avispad ko samlikespad ki nazar lagne wali hai....keep it safe. :giggle:

Snehal Samar

samlikespad

Quote from: Snehal.Samar on August 06, 2012, 12:42:53 PM
@vc .its seems dat aapke avispad ko samlikespad ki nazar lagne wali hai....keep it safe. :giggle:



Cant blame me for that snehal.. from the initial pics VC posted, she really is a beauty! If this is how VC builds an ugly airframe, then.... I am just eager to see his next build ;)

VC

Whew! Finally finished her and she is ready to fly. Decals / stickers are yet to be completed. Could have done a better job but she ain't all ugly (ref post # 27) is she? :giggle:
Growing old is mandatory, growing up is optional!

VC

Some more.............
Growing old is mandatory, growing up is optional!

samlikespad

Like I said, beauty! VC, wouldn't it be difficult for orientation with same color on both upper/under sides of the wing? Or do you have some stripes or anything at the wing tips?

Edit: It looks more like a store bought rtf trainer (looks more balsa than coro).  :hatsoff: to you for the looks VC

VC

Firstly I don't plan doing any funny stunts with this baby, until she falls into the eager hands of   >:D rcpilotacro who will probably be the first one to put her through her paces! However, I do plan on doing 3" broad silver / black stripes on the top surfaces of the wing, the bottom can stay all red.

Sam you were the biggest inspiration for this build. I owe it you, big time!  :bow:
Growing old is mandatory, growing up is optional!

VC

Oh by the way, I removed the single servo from the dorsal surface (wasn't getting adequate throws) and added two separate servos for the ailerons, to the ventral wing surface. Spliced them to form a Y cable. Works fine now. Girish, your observations (Reply # 105) proved to be prophetic!
Growing old is mandatory, growing up is optional!

samlikespad

VC, your other name in my opinion is inspiration, which I am sure everyone will agree. I am glad if I were of any assistance and eager to see her spread her wings :)

girishsarwal

It looks beautiful VC. Love the window decals and the red hints on the prop tips.
gs

VC

Thanks Guys! Wish me luck for the maiden, this weekend.
Growing old is mandatory, growing up is optional!

rastsaurabh

VC ... fantastic job......
Just a small doubt the wing aerofoil shape looks symmetrical in Pics..... is it  intentional ???

VC

Semi symmetrical......by accident   :giggle:
Growing old is mandatory, growing up is optional!

koushik

beautiful plane you've made  {:)} ..
Just a minor tip, try to maiden under mild wind conditions. That motor (Emax 1200 KV by the looks of it) might struggle to push the plane up-wind (assuming your plane AUW is over 500 grams ) ..
All the best for your maiden and try to post the maiden video.

Koushik

rastsaurabh

This accident happens when we do not put a stiffener on the lower coro before putting the aerofoil shape.
( Happened it with me too)
Anyway do not think that this will create an issue have a powerful motor to take it through...... even 3D planes have symmetrical aerofoil shape.

VC

Now that the wing is semi symmetrical, how will it affect the performance of the model? Experienced flyers please comment..................

Saurabh, how does one put a 'stiffener' on the bottom surface?
Growing old is mandatory, growing up is optional!

rastsaurabh

I havent tried it yet but the best thing which i could think was to use Icecream sticks....3 -4 on the wing span parallel to chord.
Creambell sticks are best  ;D

VC

Thanks, now where does one get Creambell Ice cream?  :headscratch:

Found some answers here. It seems that the main problem will be the deceleration at the time of landing / slow speeds......

http://www.rcgroups.com/forums/showthread.php?t=204852
Growing old is mandatory, growing up is optional!

samlikespad

VC, your model is already very low on the wing loading thanks to your building skills  {:)} IMHO there is no need to be alarmed and in fact its going to help you with inverted flying soon ;) AVISPAD is an excellent trainer with very predictable stall characteristics. Landings are smooth but do keep it a bit heavy on the nose for the first few flights and it will sort of land by itself with a little bit of flaring before touchdown.

Later if you want a somewhat perfectly shaped flat bottom wing, another way is to use 4mm bottom flutes span-wise, and glue 2mm top flutes cordwise exaclty like explained in STTB.net for the debonair wing. If you are careful at the time of bending and gluing the top piece, you could somewhat achieve this.

umeshk

Beautiful build.... waiting for your maiden video..

All the best...

VC

Thanks everybody.Orientation stripes added.  I think I will leave it at this.
Growing old is mandatory, growing up is optional!