Originally Posted by
Pilot DAR
These values correspond well to values I saw during repeated spin testing I did in a Caravan many years ago. The dive following recovery got me to 175 - 180 KIAS, and pulling 2.5 G (I installed a G meter for this testing) kept me from a faster speed that that. Had I not pulled the 2.5 G, I would have substantially oversped the plane.
This is the recorded G following my last spin of that session, which had been a near Vmo recovery
Here's a video of one of the spins
https://www.youtube.com/watch?v=zjB_q7AIvDo
Very interesting!
When I look at the timing it was roughly 5s between stall/spin entry until begin of pull- up in your case. That matches the timing in the ADS-B trace rather well. There it seemed to be around 6s.
This additional 0,5 - 1s might also fit to a potentially somewhat higher airspeed in this case. Your recovery took about 6s to level horizon. Fits also quite OK to the 3s from 45° to 27° derived from the ADS-B data. Astonishingly in this case the ADS-B data might not be that far off reality even in the upset situation.
I really appreciate this invaluable real world data!
Thanks a lot!