Over a 12 year period beginning in 1951, William Tompkins worked for an above Top Secret think tank within the Douglas Aircraft Company designing kilometer-long antigravity spacecraft covertly requested by the U.S. Navy. Now aged 92, Tompkins has come forward to expose the secret projects he worked on in his newly released autobiography, Selected by Extraterrestrials: My life in the top secret world of UFOs, think-tanks and Nordic secretaries.
Tompkins supports his claims with numerous documents including two designs he completed for space battle cruisers and space carriers that would decades later become the backbone of U.S. Navy Space Battle Groups.
http://exopolitics.org/top-aerospace-designer-blows-whistle-on-secret-us-navy-space-battle-fleets/