Many thanks for the responses. Will try sycamore's idea if FAAOA hits a brick wall; thereafter, will approach the museum at Yeovilton. Speechless Two. thank you for publishing the extra info. Another name appearing often in the log (and Frost's last boss) is Lt Cdr Vigrass, CO 818 Sqn. Worth mentioning, I thought, because an uncommon surname which may ring a bell somewhere.