Powered by one T53 turboprop that drove two tilting ducted propellers, the VZ-4 was technically quite successful. The single airframe was built at Edmund Doak's factory at Torrance - Zamperini Field, California where the photograph was probably taken. Dayglo paint had been applied by the fall of 1959. Note the mispainted serial. Photo from: Vertical Flight Society
This photo was added on 8 August 2021, and has since been viewed 304 times.