On 11/5/2011 1:44 PM, Herbert kilian wrote:


Thank you Luka, very interesting.
Since you seem to a member of the development team, there are other
questions I have. Of utmost interest is of course the amount of drag
that the folded propeller creates and how it typically affects the
glider's polar. As time goes on, you will most likely offer
conversion kits for a number of gliders and I hope, my LS8-18 might be
one of them.
Also, what is the min height you must have for the shaft center of the
prop from the ground, is that a restriction?(nobody should be tempted
to ground launch or land with the prop running) Are gliders with 4
inch wheels OK?
This would be a great kit to put on our experimental certified gliders
here in the US!
You probably heard this before but I had this idea about 5 years ago
and made some sketches but never took the steps to verify the
concept. Congratulations on making it work! You should try to get an
article into 'Segelfliegen'.

Herb


If I understand correctly, you need a glider with a circular fuselage
cross section at the transition between the spinner and the nose.
However, most glider noses have an oval cross section. So a conversion
kit would not work for many gliders (without modifying the shape of the
nose).