Well here's the biggest helicopter ever bulit the Mi-12 Homer...anyone know how many was built, did it ever go into production?

Hi Goose,

I saw the "monster" at the 29th Paris Air Show at Le Bourget in 1971 ..... very impressive!

You'll find all answers here :

..... For the development of the V-12 ultra-heavy lifter the Mil' OKB received its second Sikorsky Prize which was awarded by the American Helicopter Society for outstanding achievements in helicopter technology .....

http://www.vtol.org/awards/iistroph.html

List of records established by the V-12 on February 22, 1969 and August 06, 1969 :

http://records.fai.org/rotorcraft/aircraft.asp?id=3161

Report from Le Bourget .....

(Flight International 17 June 1971)

http://www.flightglobal.com/pdfarchive/view/1971/1971%20-%200998.html

http://www.flightglobal.com/pdfarchive/view/1971/1971%20-%200999.html