Air Whistles? Anybody?
Billy:
If you could rig up some kind of remote flapper to shut them off
and on during flight, they would be great on like the GP Stuka.
When they scream all the time, it tends to get annoying. A fellow
flyer had a pair on a 4 Star 60 and it sounded pretty good and very loud during the dives. As the plane was flown slow and level
they were fairly quite but still heard over the engine.
Randy