Originally Posted by
Genghis the Engineer
But what was the CAS margin above Vs?
G
I recall being told that the proper name for a Rans S6 was Rans 55, because it does most things at 55mph. However, cheap non certified instruments provide only a rough guide. Obviously I never stalled her close to the ground, but when doing the annual permit renewal flights, I stalled at around an indicated 39mph. So, by maintaining an approach speed of no less than 50 mph I had about 10 mph in hand. This is in still air and I increased approach speeds up to 55/60 mph as wind conditions warranted. (Strongest crosswind landing was 17 knots) I guess that computes to 1.28Vs - 1.53Vs, subject to the vagaries of the cheap instruments. Incidentally, it bimbled along happily in the 50-70 mph (indicated) speed range.