What is the real name for a cargobob?

Cargobob as seen on Grand Theft Auto: San Andreas generally resembles a Sikorsky or Erickson S-64 Skycrane, or the military variant, the CH-54 Tarhe, but has some elements of the Sikorsky CH-47 Chinook thrown in. In Grand Theft Auto V, it vaguely resembles a Sikorsky CH-46 Sea Knight, but the fuselage resembles a Sikorsky H-53.Basically, the 'Cargobob' seen in those games is an amalgamation of several helicopters - almost exclusively Sikorsky designs.