On Friday, May 19, 2017 at 10:58:29 PM UTC+1, Dave Nadler wrote:
On Wednesday, May 17, 2017 at 12:33:56 PM UTC-4, Soartech wrote:
Last year I was looking for such a device to allow me to montitor
my speed more easily on approach

Open the air vents on downwind.
Good airspeed audio queue that costs nothing...

I am interested to hear that someone else does that - I always do. Also, I always open the vent before a winch launch in case there is a cable break after which airspeed judgement can be notoriously difficult.