Keywords: Avro 707B VX790 in flight c1951.jpg The British Avro 707B experimental aircraft s/n VX790 in flight Five 707s were built to test the tailess thick delta wing configuration U S Navy Naval Aviation News February 1952 http //www history navy mil/nan/backissues/1950s/1952/Feb52 pdf p 21 ca 1951 USN PD-USGov-Military-Navy Avro 707 Black and white photographs of aircraft |