As promised, here is "The Last African Flying Boat" in its entirety for all to enjoy.
cyflyer,
Thanks for posting. A fascinating documentary, with the characters just as interesting as the flying.
Two comments. Wearing my pilot's hat, there is a dreadful porpoised landing at about 9 minutes, which could have ended the trip prematurely.
Changing hats, there is a very odd commentary by Alexander Frater about crossing the Equator as they fly by the very distinctive Teleki's Volcano at the south end of Lake Turkana. The volcano is 145 nm north of the equator.