On Jan 5, 2:42*pm, Eric Greenwell wrote:

The 302 vario, and perhaps others, can do the same thing, if it is used
as the gear warning system. A loud tone alerts the pilot as the glider
accelerates past 25 knots if the airbrakes are unlocked. It works well
in my glider.

Yes the 302 airbrake warning works well, perhaps just a bit too well.
I'd like the trigger speed to be about 5kts higher so it doesn't go
off quite so often on takeoff. (Std class glider with airbrakes part
open for every launch).

A better thread title may be "avoiding unintended airbrake opening
during launch".

Andy