
The first production twin-screw helicopter of the longitudinal scheme became the HRP-1 was produced from 1947 to 1949. It went into serial production its modification HRP-2 (1950-1952.). In 1950 he made the first flight of PV-18, which later were widely used in the Navy, and the U.S. army.
In 1956 the company started designing a new transport helicopter with turboshaft engines for the U.S. Navy. The construction of the prototype MODEL 107-107A (later CH-46) was launched in may 1957. The first flight of the M -107A made on 22 April 1958 with the TVD of the General Electric company GE-T58, and in August 1959, and tested a military version of this machine. In October 1960, it skyrocketed civilian version of the M-107.
Tests of a military transport helicopter CH-46 Sea Night began in October 1962. In 1964 this car has been in the military. Serial production of the CH-46 continued until 1970.
BOEING VERTOL CH-46: the diameter of the rotor 15 240 mm, length 13 900 mm, height 5150 mm, maximum weight 10 170 kg, empty weight 5500 kg, engines GNOME Rolls Royce company, with a capacity for 1660 HP