Vickers Turboprop. Why?

Airliner featured in previous post is perfectly real. First protype flew in 1959, and a small fleet of 20 Vanguards entered BEA (British European Airlines) service in 1962. Original configuration included 108-seat tourist class saloon and 18-seat first class saloon at the rear. Soon it was changed to 139-seat all-tourist class.

In AH Vanguard's configuration remains unchanged. Mark Toma travels to and from London as a first class passenger, courtesy of Special Research Bureau. The main competitor of this handsome  medium-haul turboprop is German Ju 692 Ostwind, powered by four turbojet engines.