Airspeed Ambassador

Airspeed. A piston airliner.

Seats
Mixed 48, Tourist 58
Range
1,900 km
Cruise
430 km/h
Payload
4,500 kg
Take off run
1,200 m
Fuel burn
520 kg per block hour
Reference price
$520,000 in 1947 dollars
Enters service
1952-03-13
Production ends
1953-12-31
Confidence
estimated (to be verified)

Source: First flight 10 July 1947; MTOW 23,587 kg; BEA ordered 20 for 3 million pounds in September 1948; entered service in 1952 as the Elizabethan class; 23 built (Wikipedia, Airspeed Ambassador, https://en.wikipedia.org/wiki/Airspeed_Ambassador). The 13 March 1952 start date is an estimate; the page gives only the year.