touch and goes
Notfred -
There was no real difference between a touch and go and a normal take off/landing. As already stated earlier in the thread bucket contact was always a possibility if the landing was a little high-pitched, especially while the buckets translated. Not having the wings perfectly level reduced bucket clearance significantly. Not much of an issue on take-off.
As for checking runways - there was a lot of that done for this aeroplane, but nowt to do with clearances. Runway roughness was a potential issue on take-off, it was to do with the structural dynamics. No time to explain now, though, but I'll revisit it tomorrow if no-one else does.
In short - bucket contact would be the result of mishandling of some sort (e.g. incorrect Vref, speed decay, overflare, wings not level) not runway roughness.