Originally Posted by
astir 8
There's another S which works for glider pilots. If the farmer has been spreading "natural" fertiliser on the field, its probably at least got a firm surface and is fairly smooth!
Gliders can be washed but the retrieve crew will take the p***

Smooth it certainly is.
My first (and I still hope last) experience of landing in such a field was that "muck" has incredibly low friction and I kept going right across the field until my aircraft (thankfully a pusher) stopped in a 4ft high pile of the stuff at the far end.
I flew out of the field, but the rest of the day was spent washing the aircraft!
P