DB6, stussy et al
When I first came up with this problem I was teaching forced landings and thought to myself "what are the different glide speeds for best range and endurance?". Not that you would really want to glide for best endurance most of the time, but anyway....
Here are some actual measurements from yesterday triggered by DB6's comments.
(C152, no flap, D.Alt 2500')
Gliding at 60 knots gives ROD 570fpm, angle=5.4deg
Gliding at 65 knots gives ROD 650fpm, angle=5.6deg
Book figure for engine failure (best range)is 60. I haven't yet had the opportunity to find a speed for a lower ROD, or to measure the ROD with 10deg at various speeds - I've been either trying to talk a student down to the ground or just concentrating on whether or not that stupid bloody cow's going to go back into it's own paddock!
Safe flying all, back in the weekend hopefully with more data. This is good fun!
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Confident, cocky, lazy, dead.