Avro Tudor
Avro's Type 688 Tudor was a British piston-engined airliner based on their four-engine Lincoln bomber, itself a descendant of the famous Lancaster heavy bomber, and was Britain's first pressurised airliner. Despite having a reasonably long range, customers saw the aircraft as little more than a pressurised DC-4 Skymaster, and few orders were forthcoming, important customers preferring to buy US aircraft. The tailwheel undercarriage layout was also dated and a disadvantage.
Read more about Avro Tudor: Design and Development, Technical Description, Variants, Operators, Accidents and Incidents, Specifications (Avro 688 Tudor 1)