Nathan Young wrote:

With the throttle at idle, and plane trimmed for best glide, what is
your plane's descent rate (in fpm)?

COZY MKIV, gross weight (2155 lb), about 115 mph (100 Kts), I'll get
about 650 fpm. At min. sink (maybe 95 mph), it'll be about 550 - 600
fpm. At lower weights (maybe 1800 lb), BG will be at 100 mph and 550
fpm, with min sink (around 90 mph) about 450 fpm.

IOW, BG gives an L/D of about 16 with the engine at idle. If the engine
was off (and the prop stopped), the L/D is about 13 - 14. There's a lot
of idle thrust, even at 1000 RPM.

--
Marc J. Zeitlin
http://www.cozybuilders.org/
Copyright (c) 2006