Reply to jonwhite866 and aboveboard.
Thanks for reading and asking, but there is little more I can say. I copied out most of what was written in the book, and yes it had nothing to do
with UFO's, just simply the story of an air hostess, who worked for the airline, Hunting-Clan which later amalgamated with Airworks to form British
United Airways, as did the Radio Officer who seems to be the source of this story.
As to when, I can only guess, as there is no mention, in fact there are very few actual dates in the whole book, but the Avro York aircraft only
lasted till 1964 and was first commissioned in 1949, (Historical note, it was derived from the Lancaster bomber, so by 1964 was rather old.
en.wikipedia.org...). So it has to be between 1950 and early 1960. Not a lot of help I have to admit.
The airport is just referred to as Khartoum, it was one of the main stopping off points, so presumably if there is a choice, it would be the main
one.
I do wonder if it was just a tease by the radio officer to the air-hostess, but not sure that really could be true. except for the lack of further
information.
The only bit I did not copy from the book was, "Obviously, our aircraft could not land, so it went into a circuit around the airport with all four
men on the crew watching 'it' the whole time. suddenly they all shouted, it's starting to move...' "
The York was a freight plane so would not have had a hostess, so the story is second hand. It comes in a chapter titled "From WW1 to flying saucers"
and follows a story about camels being on the runway at Khartoum, which was related by the air hostess herself. Again not much help.
So you have as much information at the moment as I have.
When you consider that at least 6 and maybe more people were witness to the event, and there was a supposed official report made, there is a dearth of
any more information.