Le vendredi 15 janvier 2016 16:12:36 UTC+1, Waveguru a écrit*:
"My assumption is that this was another Nimbus 4 in flight break up during spin recovery."

How many of these have there been?

Boggs

Some. Spiral dives and spins with 25m+ gliders go with a huge chance of not being able to recover inside the flight enveloppe. The moment of inertia of these gliders are massively higher than with a 15m/18m glider. They take longer time to stop the rotation, while airspeed increases very rapidly.

Bert
Ventus cM ZW