You are right - aero-towing, winch start and even car-towing are allowed for certified glider.miniLAK electric looks really nice.....presumably can be aero-towed up, or winched up, or even tow-launched by a Tesla driving down the runway (now that would be cool)!
Thanks!Yes....great vids.....just looked at Gliding Federation of Australia Manual for Winch-launching (see Link below).
Seems airfield length is 1600 meters minimum for automobile-towing(page 51), and height you can achieve is one-third to one-half the airfield's length.
BTW=thanks vortex flow,In this case you don´t "burn" energy in most un-efficient part of take-off - starting to move from zero speed when prop has low eficiency (especially prop with small diameter).
How about adding an electric inwheel motor to the landing gear?. Yes, it adds weight (10-15lbs max) but allows to leverage the battery of the FES system or any other electric powerplant for self launch!Just thinking about car towing....
Glider with FES is typically limited by prop diameter.
As max. power is used to start to move, car towing of electric glider could be simple and also could be done on shorter RWY.
Is not necessary to reach 300 m / 1 000 ft.
Woudl be enough to get off the ground and gain few meters, release and use FES to climb to requested altitude.
In this case you don´t "burn" energy in most un-efficient part of take-off - starting to move from zero speed when prop has low eficiency (especially prop with small diameter).
No need of long RWY.
No need of long tow cable.
Car us used just for short time.
Of course still would be necessary to keep on mind safety.
In case of problem car should turn to side to let glider space big enough to land.
However doesn´t seems to be dangerous way how to get to the air.
Pitty that in specification is not mentionned the weight....=yes, but no "inwheel motor " (weighty!)...
My friend bought RC model engine for his project of TST-3 Alpin - wooden self launch ultralight glider.
+=very light shaft=big vibration...Main problem is that model motors