The third prototype York LV633 'Ascalon' (the first of the type with triple fins) was used by Winston Churchill in May 1943 for flights to Algeria. Later king Georg VI use it for flights to North Africa. It had square windows instead of the usual round ones and was equipped with conference hall. Allocated the civil registration G-AGFT, it was never applied.
United Kingdom | Military
Avro 685 York | LV633