At 07:53 27 January 2020, wrote:
Hi, is anyone able to point me in the direction of pictures or patent
number that describe the retracting & rotating main wheel of the SZD
Cobra
or the Grob Twin II A? Regards Mark

The Grob Twin IIA has a fixed gear. I assume that you mean the
Grob 103 Twin Astir (1) which does have the rotating retracting gear.
LTB Lindner in Germany acquired all Grob glider patents and rights,
and acts as the pseudo factory now. You can contact them at:



RO