Topcliffe ATC Camp '71. Some cadets flew in Varsities of the Airman/Aircrew Training School, but only 'til midweek, then a Varsity departed to Gibraltar on a long Navex. On arrival, it went u/s; another was sent with spares, and we were told that would also go u/s when it got there (friday pm, so they'd all have to weekend in Gib!)