Glide Ratio Model IV

[Guy Buchanan]

From flight test, gross weight (1200#), temperature 60F, DA ~4500', engine idling (912s): glide ratio was about 8.6 at any speed over 60 mph. (Almost constant up to tested speed of 85 mph.) I did not test engine out. For reference minimum sink was 550 fpm at 45 mph. I did not test below 45 but looking at the curve I suspect it doesn't go much lower. (See attached.)