I started off this project as a prototype build for a UAV/Drone contract that one of my aquantances acuired to do Aerial photography.
The requirements were to build a plane that could fly an extended distance with a payload of up to 1000 grams.
so what happened.... I built a foam glider..
Here is the 1st 3 flights.
The Material used is 2 A1 sheets of 3mm foamboard, a 70cm 5x20mm hard wood beam as a wing spar,
2 x 100mmx6mm wooden pins for the rubber band holders of the wing.
4 x 9gram servos.
Outrunner motor with 1.1Kg thrust with a 10x4.7 APC propeller
I use a 2200mAh battery and a 20Amp ESC.
I have now flown the plane in ideal conditions and it handles extreemly well, I can glide without thermals for 5 minutes from an altitude of about 300 meters only working the head winds.
With the current setup the glider can sustain altitude and fly at 10% power, I am estimating to get about 60 minutes of flight at that rate.
Here is my latest Video:
The prototype plans can be found here: