All are variations on a theme: "self launch" , "aero tow" , "Ground launch"

it's just the power supplier or mechanics that change
BT

"Robert Gaines" wrote in message
...
How many ways can a glider-sailplane be launched?
Winch
Autotow
Towplane
Gasoline engine self launch
Electric self launch
Off Back of 747
Belly of B-29
Bungee

How many more ways?