elvington, york, yorkshire, uk. march, 2024. pv8. the armstrong siddeley cheetah

834 1935 1948 2024 aircooled aircraft anson armstrong avro british built capacity cheetah conventional eastchurch elvington engine introduced kitten lynx major march mission noise one operate port produced production prototype pv8 radial reliable run sevencylinder siddeley small variants victoria world york yorkshire