"Bob"
"Maule Driver"
My impression was that it 'stopped flying' before it looked like it
stopped
flying. I think that's what dooms many a pilot because they continue to
pull after the aircraft as already stalled but before any sort of break.

Looked like the dreaded downwind turn to this old RCer

And yes, there is no such thing as a downwind turn except as an optical
illusion that effects the pilot.

It looked to me like it had already made the downwind turn and was turning
back into the wind when it crashed.
Bob
I went back and looked again. It did look like a stall out of turn to me.
It appeared to be perfectly oriented for the 'downwind' turn type of event.
I've seen many dozens of them (done a few myself). The clouds and the sock
suggest that et was a blustery, variable wind day which just makes it even
more challenging to fly. There appears to be a momentary bump where the
nose drops and the bank increases well before the turn completes 90
degrees - that looks like a stall. Did this thing have true to scale
spoilers for bank?

Having said that, there's no way to know for sure without telemetry. Flight
instruments is part of what makes full scale flight easier in so many ways.

Damn what a fine looking ship!