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The Boeing Vertol CH-46 Sea Knight is an American medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines. It was designed by Vertol and manufactured by Boeing Vertol following Vertol's acquisition by Boeing.
While V-111 entered US army service as CH-47A Chinook, the smaller V-107 entered USMC service as CH-46A Sea Knight. Though they look similar, they are in fact, quite different. CH-47 is much larger, has more powerful engines and has a substantially larger MTOW (22t for CH-47F as against 11t for CH-46E).
The Marines’ primary lift at Hue, the CH-46 Sea Knight—known as the “Phrog” for its head-on appearance—began life as the YHC-1A, one of two proposed medium lift transports for the Army. The Army chose the larger, more powerful YHC-1B, which became the CH-47 Chinook.
CH-46D Sea Knight. Naval aviation's first tandem-rotor helicopter, the Piasecki HRP, appeared during World War II. Fabric covered with a top speed of 104 M.P.H., its ungainly appearance...
Converted by NARF North Island & NARF Cherry Point for USN & USMC Base, Station, & Shipboard SAR use. 1979 : CH-46E, upgrade conversion in lieu of procurement (CILOP) of existing CH-46A/D/F models to common CH-46E standard. Included new engines, fibreglass rotors and advanced avionics.
The twin turbine tandem-rotor CH-46 Sea Knight is a medium-lift transport helicopter. It can accommodate 17 troops or 15 litters and two attendants with a range of 265 nm. Crew size is 3-5 people.
This CH-46 Sea Knight (Bureau Number 153369) will be the flag bearer for the helicopters retirement in July 2015. It is seen here in October 2014 in an updated, yet retro Vietnam-era paint scheme applied by the HMM-364 “Purple Foxes,” who operated this aircraft extensively during the Vietnam War.
The Boeing CH-46 Sea Knight is a medium-lift tandem rotor transport helicopter, used by the United States Marine Corps (USMC) to provide all-weather, day-or-night assault transport of combat troops, supplies and equipment.
Marine Corps renegotiated the Sea Knight’s Service Life Extension Program (SLEP) through 2017. With the current Service Life Extension Program, CH-46 squadrons will see about forty-two more Marine Expeditionary Unit (MEU) deployments, excluding training obligations and other operational commitments. Most Sea Knight airframes have over
Boeing Vertol 107. Developed as the YHC-1A in 1958 due an US army 's request for a medium-size turbine powered helicopter, was soon cancelled on behalf of the biggest CH-47 Chinook of the same company.