On Mar 6, 8:12*pm, Bret wrote:
Hi, do any gliders have full-span flaperons that also act as airbrakes
(say at 70-90 degree), or do you lose all aileron authority when the
flaperons are that deflected?

Kestrel 19 has full span flaperons. The inboard section, in climb and
cruise settings, deflects half the range of the outboard sections. A
second, panel mounted, landing flap handle, allows half or full
landing flap deflections of the inboard sections, to a maximum of 35
degrees. This generates high drag and lift for glide path control
when landing. Half landing flap may be used when ground launching and
will add 200ft or more to the launch height. Derek Piggott has
described it as a rather complex cockpit as gliders go, as there are
also air brakes and a tail chute.

Frank Whiteley