O-P,
Lettie was a ground hostess at Kuching, an airport shared by civvy and RAF. She was tall, slim, attractive in every sense of the word and a charming lady as well. She is no figment of our imagination. I last saw her in March 1967 when I stopped en route to Singapore from Labuan - I think the whistling wheel barrow needed some more juice, having first called at Jesselton (now KK).
There were a number of other ladies with whom the guys were friends and these included a couple of air hostesses, a police inspector, a customs officer at Labuan and an English dentist working in the same place. One lady attracted the attention of the RAF P&SS but that's another story.
BUT - Lettie was real!
Old Duffer