Owner Robby Greene has now supplied a sailing video, and writes:
Hi Ian,
Here’s a video clip of the F-35C in ~7 knots of breeze, close hauled with the working jib and main. We were doing 16 knots by GPS at the time this was shot!
The GPS recorded max speed was 17.8 knots in a close reach with same sails and wind strength (actually slightly more but still no white caps). Sustained speeds for the day of the video on close reaching were between 12-14 knots (closer to 14 most times). The current was negligible and it was an ebb tide while we were heading in.
Cheers,
Robby
robertw.greene@utsouthwestern.edu