The Avro 707 (also known as Type 707) was a British experimental aircraft built to test the tailless thick delta wing configuration chosen for the Avro 698 jet bomber, later named the Vulcan. In particular, the low-speed characteristics of such aircraft were not well known at the time. Aerodynamically, it was a ⅓-scale version of the Vulcan.
Read more about Avro 707: Design and Development, Operational History, Survivors, Operators, Specifications (707C)