At 12:40 25 April 2012, Bert TW wrote:
On Apr 25, 2:39=A0pm, Bert TW wrote:
Our club operates a PA 180 HP with a four blade prop. Max mass of the
towed glider per flight manual is 620 kg (decreasing with density
altitude). Max mass of the PA during towing operations is 690kg.
I did look it up a couple of weeks ago to know whether it could tow an
ASH25 with two pilots - which it can't.

Oups, forgot - we're in Switzerland.

In the UK the PA18-150 is cleared to tow up to 2 gliders max combined
weight 1900lb (862kg), and the PA18-180 cleared to tow up to two gliders
max combined weight 2400lb (1088kg). The weak link in the tow rope has to
be maximum 1000lb (454kg) if towing 1 glider, and a maximum of 1300lb
(590kg) if towing two gliders.
This is all on the CAA change sheet No.1, (dated 25 April 1980) to FAA
approved flight manual report 1054, which is the PA18 Super Cub UK manual.

Hope that helps

Dave Bullock