FLY in the future with an electric self-launch sailplane
FLY in the future with an electric self-launch sailplane Electro Apis EA1
ELECTRIC APIS EA1 is one of the first sailplanes in the world and the first one in Slovenia EU (the first flight was 18. April 2005), which can take off with an electromotor and climb up to altitude 1800m at 50%DOD, even to altitude 3000m at 90%DOD. The altitude depends on the percentage of the discharging of the Li-Poly batteries. The best recomended discharging of the batteries is about 50%DOD. In this case the altitude is app 1800m and the batteries can give 1500 cycles http://kokam.com/english/product/kokam_Lipo_01.html
In the future solar cells on the wings will give enough nature energy for many take offs next day and to climb much over than 3000 metresof the altitude.
Have a look:
Electric sailplanes... the future?
Will they pollute less?
Is this kind of energy better?