Following up on this, and my thoughts about flying to The Needles Lighthouse … I just took off (away from), then landed on this 10ton rated manhole cover … then took off again.
No problems.
I also tried rebooting and starting from the manhole cover.
No problems.
Shows how difficult it is to predict the MPs response to such things.
It also means I’ve not decided it’s OK to fly to the lighthouse. I need to test from something it really won’t take-off from after booting, then see if I can “visit” it and take off.