On Sep 1, 9:00*am, Derek Copeland wrote:
Isn't there supposed to be a convention that the tug pilot turns right and
the glider pilot turns left (or the other way round) in the event of an
engine failure during the take off ground run?

In the US I believe the answer is yes. From my copy of the SSA
Soaring Flight Manual:

"If the towplane loses power, the sailplane pilot should immediately
release, maneuver to the right of the towplane, and stop as quickly as
possible. The tow pilot can then discontinue the takeoff and maneuver
to the left side of the runway."

Regards,

-Doug