RC India

This is my first self designed electric glider ....
Specs :
Fuselage length 22 in
Wing span 38 in
Cord 5.5 in
H. Stab 10*6
V. Stab 8*6
Electric setup : Motor 2623 3000 kV
ESC 25 amp
Battery 2 cell 1800 mAm
Total weight : 460 GMs
Material used : All coro

All the dimensions are taken with standard proportions.

* I think I have messed up with wing loading ....

ALL EXPERTS OUT THERE EVERY WORD OF YOUR ... COUNTS .... NEED SUGGESTIONS BEFORE THE MAIDEN(http://img.tapatalk.com/d/13/12/11/ysydyqet.jpg)(http://img.tapatalk.com/d/13/12/11/ymunyny9.jpg)(http://img.tapatalk.com/d/13/12/11/7epu7y6y.jpg)(http://img.tapatalk.com/d/13/12/11/edavesa6.jpg)(http://img.tapatalk.com/d/13/12/11/hapyzy9u.jpg)(http://img.tapatalk.com/d/13/12/11/zu5ape5a.jpg)   

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Great plane 👍👍👍.
Post flying video soon :)

Nice build. :)
How did you re-inforce the T joint on the V stab, how steady is it?

Its stuck with 2 coro  pieces and cyno and is quite sturdy

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Your wing doesn't have a dihedral and it doesn't have ailerons too. Pretty sure you will have a tough time controlling it.

@vishalrao ... As it is I have messed up with the wing loading ... So planning a poly dihedral of 6 to 8 in on both edges of the wings ..  What do you think ? ... Thanks for the input

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You can just cut out the Ailerons now also. ;)

That's a good option .... It won't take care of the excess wing loading though ....

 

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Hey ... Any one on the wing loading maths ...
 That's been pricking me .... The value turns out to be 9.9 cube wing loading. And ideal glider wing loafing figure is under 5 .... Mine is almost double .... This is the maths part .... But experts on board .... Please ...advise

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First of all ..well done gr8 plane :)...your wingspan is 9.26 oz/cu.ft to be exact ( according to online calculator) usually beginners are advised to choose cubic loading no greater than 8 but since its close enough no worries.....as suggested by one of the members above do cut an aileron...as you are a beginner you should practice with ailerons first...if you have an extra servo just cut the ailerons out...if you dont hav an extra servo you can swap the rudder servo as you dont need rudder right now....as i too dont use rudder im also on a learning stage for planes...you can see my first plane here http://www.rcindia.org/electric-planes/my-new-spad-hell-on-stick-(-no-rails)-))))/

Plus you can refer to this page for calculations an design help....

http://adamone.rchomepage.com/design.htm

U can also go for web0calc, great online calculator for planes

Ive never tried webocalc....ive tried ecalc...does webocalc have data abt turnigy motors...??...ecalc has but not all ..

@EricOliver thanks for your suggestions ...
 Will do the aileron part but am thinking to do it after a test flight as I want to confirm I don't need more wing area ... What do u say ?

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No you are fine with 9.26 loading ...no worries go for maiden :)

@EricOliver That boosts my confidence... Thanks will keep posted ....

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Just go for maiden....and post videos so if anything goes wrong we can identify.... :thumbsup: :thumbsup:

hii please before take off do the glide rest first by hand usually i do the that before takeoff..incase any load shifting...please do i tby chuking with full force and ensure weather it gets stall or dive ...if you aware about the glide test...all the best....

Yea n one more thing have you balanced and checked the cg..?

please try the the extra tip in dihidral angle by adding extra coro of same shape at both the wings end... will help at the time flying...and prevent from wing drop at turns.....

@wingman4ever...
 Thanks for the input... Had given a glider trial with out the load ( battery ESC Rx and motor ) had glided well and about tip dihedral was thinking in same Lines will do that ..
 Thanks again

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@EricOliver .... The CG is a bit (1in ) behind where it should be ... So adding a bit of weight on the nose ( nut ) ..
 

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Instead of adding dead weight, move the battery to get correct CG.

@swizera ... Actually there is no scope for any forward battery movement ... That's y I had to resort to dead weight

 

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While adjusting cg always try to remove weight adding more wt will worsen the cg...and will have hard time balancing....

@EricOliver...then
 I have to reduce the tail ..
 V stab and H stab ... But that will mess up with my proportions ... Should I ?

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No that dosnt meant removing those...i meant try to remove things which is not really required tht just adds up wt.... Or by shifting the battery will do

Also a minor adjustment i would do is cover the LE of the H stab and V stab as open flutes might obstruct the flow of air over the surface of the tail feathers. ;)

@RCNeil21 Thanks ... Will do that ...

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Hello there ...
 As per suggestions and advise of my expert board mates ....
Changes in wing design done
1 dihedrals added 6 in each side
2 aileron added .....
That should be good I guess .....
Inputs still welcome ....
(http://img.tapatalk.com/d/13/12/13/atu5u7e2.jpg)(http://img.tapatalk.com/d/13/12/13/amu5y8u4.jpg)

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Awesome :) now just hit the sky good luck :)

Awesome wish you happy flying in sky :)

:D

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Wish me luck

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