If I did the math correctly.. Vne of 140kph is about 75knts or well within
the lower range of most tow planes like the Pawnee. The key would be what is
it's Va speed or the "max aero tow" speed. That would be the governing
factor.

Summer aero tows out here, you do not want to be above Va (Maneuver) speed,
they can be a rodeo ride. And the max aero tow may be based on the strength
where the tow hook is attached to the aircraft.

BT

"ISoar" wrote in message
om...
The US distributor of Aeros hang gliders has announced that the
Ukranian company's ultralight sailplane has had it's first flight.
This craft was built using the wing of Aero's rigid wing hang glider,
the Stalker. It was designed to be towed up by the same tugs hang
gliders use. I wonder what happens when one tries to tow an
ultralight sailplane with the same towplanes we use?

Some specs:
Weight: 80 kilos
Stall speed: 34-40 kph
VNE: 140 kph
Max L/D: 27 at 60 kph
Min sink: .5 - .6 (units not specified) at 45 kph

Details (very few) and photos at
http://www.justfly.com/news/al12info.htm