Idle Stop ... Just had a dig into the history books
TDoE (as MRAF) did his basic flying training on, then, a brand new Chipmunk WP861 at WW but he did his 1st solo in WP912 20/12/1952 ...
BEagle ...
Were either of these two Chipmunks on the ULAS fleet ?
WP861 went to New Zealand whilst WP912 is at Cosford