wrote on 4/29/2020 5:36 PM:

Come on Mark, 1980 vintage hang glider performance. Not an issue, could
probably do a 360!

Straight from the Schempp-Hirth Arcus M Flight Manual. Dave Nadler calls it
"Plummet Mode."

When we converted four Arcus M gliders to jet power, we measured 38:1 with the
engine extended but not running.

38:1 -- is that with the jet engine extended, gear retracted?

I'm astounded a 20M high performance, 50:1 glider can only manage 14:1 with the
pylon out. Is that in landing configuration with the gear extended, also? My 18M
ASH26E is much better than that (about 20:1) with the pylon up and gear extended.
Do you have any idea what makes it so terrible? That's like a PIK 20E!

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1