"OscarCVox" wrote in message
...
OK, I'll bite: name 10 (listing different makes of tow vehicles or of tow
planes does not count)

Hmm I will try
Autotow
reverse pully auto tow
Winch
winch with winch retrieve
Bungey
Shoulder launch
aerotow
Horse tow ( I know it sounds daft but I believe that they used a horse and
a
tow rope at Dunstable pre war)

Now i am stuck. Any others?

Balloon drop. Not used much for sailplanes, but reasonably common for hang
gliders a number of years ago.
Also proposed as a launch method for a high-altitude atmosphere sampling
project using something that looked an awful lot like a sailplane.

Tim Ward