I believe the 12 meter wingspan version with nose wheel would be ideal
for towing; the 15 meter is ideal for soaring. The aircraft has a
variable pitch propeller which is set at fine for take-off etc... and
coarsened for cruise and feathered for glide.

Thanks Michael

Chris Nicholas wrote:
Is it intended to have a glider towing variant? Have any tests been
carried out towing, and if so, with what result? Is the propellor
optimised at present for enonomical cruise, and need to be finer pitch
to optimise for towing?

Chris N.