Martin Gregorie s comments read:


There are
many crew who are not SSA members, pilots, or in any way
associated with an airport. Another land mine.

I don't think that matters.

If the person(s) know where they are, can recognise a glider, read its
registration and sign their name they'll do as witnesses.

I take it you didn't do your Silver distance in a NNE direction from
Gransden then ;-)
--
Tim - ASW20CL "20"