On Thursday, April 30, 2020 at 12:34:24 AM UTC-4, Eric Greenwell wrote:
I'm astounded a 20M high performance, 50:1 glider can only manage 14:1
with the pylon out.

Why? Its only been explained here, like a thousand times?
In addition to open engine bay, the large radiator is a lot of drag.

The published min sink rate is at IIRC blue line.
Are you really going to attempt a turn-back at blue line?
No margin, and speed decays VERY rapidly with any inattention and all this drag.

Plummet mode in ArcusM is really not as bad as some older contraptions.