"As Sir Roy Feddon, Chief of the Technical Mission to Germany for the Ministry of Aircraft Production stated in 1945...
"I have seen enough of their designs and production plans to realize that if they (the Germans) had managed to prolong the war some months longer, we would have been confronted with a set of entirely new and deadly developments in air warfare."
... That these events occurred is also supported by former CIA agent Virgil Armstrong who commented "We know that in the early parts of the war there were certain factions of the Allied forces that did not believe he (Hitler) had a secret weapon and it wasn’t until the Americans made much emphasis of this that they began to look at it seriously and indeed did discover that
Hitler not only had a secret weapon,
he had what we would call today
a UFO or spacecraft." http://www.violations.dabsol.co.uk/
secrets/secretspart1.htm