nye said:
they hav jus told tht we hav to build the plane..im not sure whether we can buy the parts or hav to assemble it on our own..i suppose to make it lightweight we hav to do it on our own right?
RC electronics, i was tihnkin we can make it on our own or buy it from a model or electronic shop..can u suggest anything??
no of channels...hmm..sill not sure..
budget is about 2000 australian dollars for the whole thing..
we need to have the solar panels on the wings..there'll b a brushless DC motor, and a lithium battery to giv the bursts of power needed for take off..they also told tht a special featuer will b its low speed and low drag..
So the challenge here is the aerodynamics of the airplane.
Start reading up on park flyers. There are some DIY sites out there.
They will be the closest to what you are building.
To keep weight down keep it as small and simple as possible, rudder only if allowed.
Try to determine which motor is best suited for your needs.
Buy the electronics or salvage them out of a RC toy. Keep weight in mind.
About the only thing I would build if budget permits is the airplane itself.
The airplane comes first, Maybe a design that is more of a powered glider.
You need to ballance the size of the airplane and motor.
Spend a few days comparing what exists on the web.
How much money will be left after the solar pannels?
Did they say anything about wingspan on length?
Again how long do you have to build it ?
This sounds fun.
EDIT: You need to start looking at solar cells/panels to find the ones that
provide the best power to weight ratio.
If the 2K is the final cost of the plane you may be able to buy parts to try/compare
and not report the unused stuff.
If this is a team effort split up the work load.
Have one find the best motor, another the best solar cells etc.