Well, since you mention that, I did once launch in a friend's ASW-24E
out of Kelly Air Park (7,050' MSL, 3,500' paved runway) on July 6,
2000. It took two attempts to get airborne and then a little nap of the
earth flying to gain speed. Not for the faint of heart... The '24 is
labeled an "E" but I think "T" would be more reasonable.

On 12/7/2016 11:26 PM, Bruce Hoult wrote:
On Thursday, December 8, 2016 at 2:21:34 AM UTC+3, Casey wrote:
I've noticed that 13.5m FES are advertised as Front Engine Self Launchers and 15m are advertised as Front Engine Sustainers. I did here of a LAK 17b FES launch off asphalt. I wonder if the batteries heat up more from a 15m launching than a 13.5m? Or if the batteries heat up during prolong usage with either the 13.5m or 15m?
Any glider with a sustainer can self-launch from a sufficiently long hard surface, with plenty of pressure in the tyre and a push start. Or, better, a tow to 100-120 km/h with a car.

--
Dan, 5J