On Jan 30, 8:09*pm, Andreas Maurer wrote:
On Sat, 30 Jan 2010 08:35:54 -0800 (PST), T8
wrote:

It's probably possible to land a 15m glider in negative flap, but
you'd need a final approach speed of *70 kts to do it. *From the
description of this incident, it sounds like the pilot was closer to
50 kts and certainly under 55.

Well, I've already seen an ASW-27 land with fully negative flaps aith
a normal approach speed of about 50-55 kts. Impressive nose-up
attitude, but otherwise unproblematic.

Sounds a little marginal to me! Glad it was unproblematic.

"70" is just my guess for a safe approach speed in negative flap, with
spoilers out, in a '20 or similar vintage 15m with larger chord
flaps. I've surely never tried this.

-Evan Ludeman / T8