Lire http://psk.blog.24heures.ch/archive/2014/05/06/sikorsky-presente-le-ch-53k-855928.html

et aussi http://en.wikipedia.org/wiki/Sikorsky_CH-53K_King_Stallion

Le premier CH-53 a volé voilà 50 ans

The CH-53 was the product of the US Marine Corps’ “Heavy Helicopter Experimental” (HH(X)) competition begun in 1962. Sikorsky‘s S-65 was selected over Boeing Vertol‘s modified CH-47 Chinook version. The prototype YCH-53A first flew on October 14, 1964.^[4] The helicopter was designated “CH-53A Sea Stallion” and delivery of production helicopters began in 1966.^[5] The CH-53A is equipped with T64-GE-6 shaft turbine and has a max gross weight of 46,000 lb (20,865 kg).