RC India

this is my project glider i had discussed earlier

Iam not able to see anything.  :headscratch:

these are the pics

Some more

please notee that the main wing has not been permanently attached yet

plz helpp :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help:

This is a V-Tail design right ?  My immediate thought is that bigger tail fins would help.

And to answer your question, why not just throw it against the wind into some tall grass and see how well it glides  ? :)

sir the fins are fixed permanently now :( ???

I am confused... what prevent you from testing this by chucking it towards some tall grass, rather than asking others who will be forced to guess the outcome :) 

Remember that even Mr Ashta here (the person who builds most number of foam planes) still tests his planes by test gliding them, so please do not expect people to give you YES or NO answers to such questions (I hope I am wrong, but chances are remote !).

I second Anwar. Why did you use a V-Tail with elevator ? The Tail should definately a little bigger even when you have 2 of them. They greatly stabilize Yaw. You would also need a bigger elevator. The plane design is interesting. put some re-reinforcement to the Fuse , esp under the wings, with the same material fuse is made of.

Put some weight to CG the plane at around 1/3 of the leading edge and throw it against wind on grassy field. If the empty plane cannot survive such hand launch, it wont with electronics and battery.

sir the fuse is made of 2 square caborn rods which are 4 cm apart and it wont have any servos or control ...only a motor , a relay and a circuit

See you are trailblazing :)  So you tell us how it all works out :thumbsup:

sure sir :thumbsup: :salute: :salute: :salute: :salute: :salute: :salute: :salute:

Do rethink about the Tail/Elevator sizes as even Anwar has pointed out(he is moderator of this forum and an avid Heli flyer, apart from Planes)

Why are you using a relay ?  What is the material used for fuse/Wings ? Coro or Biofoam ? Nice to see newbies going guns!! All the best..

wings are made up of biofoam

fuse i made up of two square carbon rods..and 3 chips of balsa plywood

i will post more pics tomorrow.....which will include the circuit motor..asnd 90 % complete plane

Since this is "powered free flight", please try the flying characteristics by chucking it into grass as mentioned before (with the motor not running).  If the first flight itself is powered, and you find out that it cannot glide, all your effort will go in vain in a few seconds.

I still do not fully understand what your plans are (with the "motor, relay and circuit" part), so pardon me if my suggestion does not make sense.

i will show u all the circuit tomorrow

i had a test glide today ...it covered nearly 4 n half meters...so now changing the the v tail to normal rudder and elevator system... can u suggest me the size and shape of rudder and elevator..

Some modifications made this morning

here are some info to read

http://www.flyingsites.co.uk/downloads/index.htm
http://www.geistware.com/rcmodeling/articles/beginner_1/

http://www.airfieldmodels.com/information_source/math_and_science_of_model_aircraft/rc_aircraft_design/index.htm
http://www.rcgroups.com/forums/showthread.php?t=1261618

http://www.rc-airplane-world.com/how-airplanes-fly.html
if u have alreday gone thru, then leave it

sadly the project has come to an end...the plane broke...... :( :( :( :( :( :( :( :( :( :( :( ............now have think of something else soon

Ashta Sir,

WEALTH of information in the sites quoted by you.

Thanks a million.

VC

Akky, just get another set of plans and start building - the next one will be better. All the best!

no more scratch building....especially from biofoam.....its a useless material.... :banghead: :banghead: :banghead:...............everytime a make a plane..the same happen...it happened with my f22 raptor also...

Nope, biofoam is an easy to fix material that is cheap (yes, it is brittle too).  The issue is that you put a motor on such a model with no real control.  You should try to make it either a free flight one (rubberband powered) OR you should make it a full remote controlled one.

anwar sir i tested it by the method u told chucked it without any motr or anything...but after 3 meters it went up..nose at 80 degress...then fell directly of its tail

tomorrow going to buy sunpack sheet 7 feet by 4....it will cost around Rs 400

The whole idea was to do it into tall grass that would absorb the impact... looks like this was not done ?

sir couldnt fine any ground with tall grass..so tested it in my garden

hi,

i presume if the plan landed tail first that means that the plane was not nose heavy ,

But i think all gliders needs to have nose heavy to do a forward flight.

Akky don't get frustrated so easily. Everyone learns from their mistakes. So, try and build another one with proper knowledge, there are many experts in this forum who can guide and help you whenever necessary.

Good that you are not quitting. Try your luck with Coro. But don't undermine Biofoam. You see Ashta sir fixing totally ravaged Biofoam plane to fly - he fixed my Estratos whose left wing broke from middle and it flew again!!
A 80 degree climb would definitely result in a stall followed by a nose dive. Your plane was  Tail-heavy. There is this common tendency by newbie like us to make our plane Tail heavy when there is very small window of 'Angle of attack' and a slight high alpha leads to a stall.

slight nose heavy plane is better to start with. Only learning from your own mistakes would help you. If the basics are wrong, it won't be long to crash even a shiny ARF/RTF.

All the best.

goining to do it again...and put some weight on the nose

finally my plane has got a name..."DOWN 4"......todal did some decal work on the main wing

an d when i come to quiting from this hobby...its near to impossible...onece a person is in he cant get out....