kolibri282
Super Member
Is it only me who feels old fashioned affection when the front credits of a technical film show the line "narrated by..." ?
Rocket On Rotor (1955) Helicopter Rocket Rotor Blade Tips - YouTube
some additional material here:
http://www.flightglobal.com/pdfarchive/view/1957/1957%20-%200083.html
Rocket On Rotor (1955) Helicopter Rocket Rotor Blade Tips - YouTube
some additional material here:
http://www.flightglobal.com/pdfarchive/view/1957/1957%20-%200083.html