العربية
中国
Français
Deutsch
Ελληνική
हिन्दी
Italiano
日本語
Português
Русский
EspañolCH-46 SEA KNIGHT
(Redirected from CH-46)
The 'Boeing CH-46 Sea Knight' is a medium-lift tandem rotor assault helicopter, used by the United States Marine Corps (USMC) to provide all-weather, day-or-night assault transport of combat troops, supplies and equipment. Assault Support is its primary function, and the movement of supplies and equipment is secondary. Additional tasks include combat support, search and rescue, support for forward refueling and rearming points, CASEVAC and Tactical Recovery of Aircraft and Personnel (TRAP).[1] The commercial version is the 'BV 107-II', commonly referred to as simply the "Vertol".[2]
Piasecki was a pioneering developer of tandem-rotor helicopters, with the most famous previous helicopter being the Piasecki H-21 "Flying Banana". In the late 1950s, development was begun on a medium-lift tandem-rotor derivative to be marketed to both the military and commercial markets. First flight of the new helicopter, designated the 'Model 107', took place on October 25, 1960.
The original military version was the 'YHC-1A' for the U.S. Army. Rejected by the Army as being too small for its needs, it was then evaluated by the U.S. Marine Corps (USMC). The YHC-1A won the design competition in 1961 and was ordered as the HRB-1 (CH-46A after 1962). It first flew in 1962, and was first delivered to the USMC in 1964.
The CH-46 Sea Knight was first procured in 1961[3] from the Vertol Aircraft Corporation (formerly Piasecki Helicopter) under the designation of "HRB" to meet the medium-lift requirements of the Marine Corps.[4] The acquisition of Vertol by Boeing Aircraft Co. resulted in Boeing Vertol. In total, 625 H-46s were produced for the United States Navy and Marine Corps with the final version being the CH-46E (although an F variant was procured, the E was the later model.) Approximately 350 airframes CH-46D and CH-46F were converted to "E" models. These aircraft have improved avionics, hydraulics, drive train and upgraded 1870 shp T58-GE-16 engines, and are distinguished from earlier models by the square main engine exhausts. the dynamic Component Upgrade (DCU) incorporated starting in the mid-1990s provides for increased capabilities through strenghened drive systems and rotor controls.
The commercial variant, the 'BV 107-II', was first ordered by New York Airways in 1960. They took delivery of their first three aircraft, configured for 25 passengers, in July, 1962.
In 1965, Boeing Vertol sold the manufacturing rights to the commercial version to Kawasaki Heavy Industries. Prior to that, all civilian variants were built in Japan as the 'KV 107-II'.
On December 15, 2006, Columbia Helicopters acquired all type certificates for the BV and KV 107-II, and is also in the process of acquiring all of the production certificates. Plans for actual production of the aircraft have not been announced.
Known colloquially as the "Phrog", and used in all Marine combat and peacetime environments since its introduction, the last Sea Knight rolled off the assembly line in February of 1971. [5] Still regularly flown by the Marine Corps, its longevity as a reliable airframe has led to such mantras as "phrogs phorever" and "never trust a helicopter under 30. [6]." While the United States Navy retired the airframe on September 24, 2004 , replacing it with the MH-60S Knighthawk [7], the Marine Corps plans to maintain its fleet until the MV-22 is fully fielded[8] In March of 2006 Marine Medium Helicopter Squadron 263 (HMM-263) was deactivated and redesignated VMM-263 to serve as the first MV-22 squadron.[9] The replacement process is expected to continue through the other medium helicopter squadrons into 2014.
The Civilian version, the BV 107-II ''Vertol'' was developed prior to the military CH-46, and was operated commercially by New York Airways, Pan American World Airways and currently solely by Columbia Helicopters. As of December 15, 2006 Columbia Helicopters has purchased the Type certificate of the Model 107 from Boeing[10]. Currently the company is seeking FAA issuance of a Production Certificate to produce parts with eventual issuance of a PC to produce aircraft.
Total U.S. H-46 production amounted to 524, ending in 1971.
;Model 107 : Company model number.
;Model 107-II : The third YHC-1 prototype was converted into a commercial airline helicopter. All subsequent commercial aircraft were produced as BV 107-II.
;Model 107M : Military transport prototype for the United States Marine Corps.
;YHC-1A : Three Model 107s for test and evaluation by the United States Army. Adopted by the United States Marine Corps as the HRB-1. Later redesignated 'YCH-46C'. Three built.
;YHC-1B : Were not Model 107s but five Model 114s that later became the CH-47A Chinook
;HRB-1 : Original designation before being renamed as CH-46A before delivery under the 1962 United States Tri-Service aircraft designation system
;CH-46A : Assault, utility medium transport and SAR helicopter for the USMC, fitted with two 935-kW (1,250-shp) General Electric T58-GE-8 turboshaft engines. (Previously HRB-1). 164 built.
;UH-46A : Utility medium transport helicopter for the US Navy. Similar to the CH-46A. 14 built.
;HH-46A : A small number of HH-46As were converted into SAR helicopters for the United States Navy base rescue role.
;RH-46A : A small number of CH-46As were converted into minesweeping helicopters for the US Navy.
;UH-46B : Development of the CH-46A to specification HX/H2 for the United States Air Force; cancelled
;YCH-46C :YHC-1A redesignated in 1962.
;CH-46D : Assault and utility medium transport helicopter for the USMC, fitted with two 1044-kW (1,400-shp) General Electric T58-GE-10 turboshaft engines. 266 built.
;HH-46D : A small number of UH-46Ds were converted into SAR helicopters.
;UH-46D : Utility transport helicopter for the US Navy combat supply role. Similar to the CH-46D. 10 built and one conversion from CH-46D.
;CH-46E : Approximately 350 -D and -F airframes were updated to CH-46E standards with improved avionics, hydraulics, drive train and upgraded 1870 shp T58-GE-16 engines.
;CH-46F : Improved version of CH-46D, electrical distribution, com/nav update BUNO 154845-157726. Last production model in the United States. 186 built
;VH-46F : VIP transport helicopter.
Main articles: CH-113 Labrador
;CH-113 Labrador : Search and rescue version of the Model 107-II-9 for the Canadian Forces Air Command. (18 built)
;CH-113A Voyageur : Assault and utility transport version of the Model 107-II-9 for the Canadian Forces. (12 built)
;Hkp 4A : Boeing Vertol 107-II, used originally by Air Force for SAR. (10),
;Hkp 4B : Boeing Vertol 107-II-15, Navy (3)
;HKP 4C : Kawasaki KV-107-II-16, Navy (8)
;HKP 4D : Rebuilt Hkp 4A for SAR/ASW (Navy) (4)
;KV-107II-1 (CT58-110-1)
:Utility transport version.
;KV-107II-2 (CT58-110-1)
:Commercial airline version.
;KV-107IIA-2 (CT58-140-1)
:Improved version of the KV-107/II-2.
;KV-107II-3 (CT58-110-1)
:Minesweeping version for the JMSDF, 3 built.
;KV-107II-3A (CT58-IHI-10-M1)
:Uprated version of the KV-107/II-3.
;KV-107II-4 (CT58-IHI-110-1)
:Assault and utility transport version for the JGSDF.
;KV-107II-4A (CT58-IHI-140-1)
:Uprated version of the KV-107/II-4.
;KV-107II-5 (CT58-IHI-110-1)
:Long-range SAR version for the JASDF.
;KV-107II-5A (CT58-IHI-104-1)
:Uprated version of the KV-107II-5A.
;KV-107II-7 (CT58-110-1)
:VIP transport version.
;KV-107II-16
:Powered by Rolls-Royce Gnome H.1200 turboshaft engines.
;KV-107IIA-17 (CT58-140-1)
:Long-range transport version for the Tokyo Metropolitan Police Department, 1 built.
;KV-107IIA-SM-1 (CT58-IHI-140-1M1)
:Firefighting helicopter for Saudi Arabia.
;KV-107IIA-SM-2 (CT58-IHI-140-1M1)
:Aeromedical and rescue helicopter for Saudi Arabia.
;KV-107IIA-SM-3 (CT58-IHI-140-1M1)
:VIP transport helicopter for Saudi Arabia.
;KV-107IIA-SM-4 (CT58-IHI-140-1M1)
:Air ambulance helicopter for Saudi Arabia.
;
★ Canadian Forces Air Command
★ Canadian Coast Guard
;
★ Japan Air Self Defence Force
★ Japan Ground Self Defence Force
★ Japan Maritime Self Defence Force
;
★ Royal Saudi Air Force
;
★ Swedish Air Force
★ Swedish Navy
;
★ Thai Air Army operates KV-107IIA.
;
★ United States Navy
★ United States Marine Corps
;
★ Helifor Canada Corp (under lease from Columbia Helicopters)
;
★ ''Kawasaki Helicopter System, LTD''
★ ''Tokyo Metropolitan Police Department''
;
★ Columbia Helicopters
★ ''New York Airways''
★ ''Pan Am''
''Former operators are marked by italics''
1.
CH-46E Sea Knight Helicopter
2. Eichel, Garth, "Columbia Helicopters", ''Vertical Magazine'', February-March 2007
3. "Tandem Twosome", ''Vertical Magazine'', February-March 2007
4.
CH-46 Sea Knight [H-49] "Phrog"
5.
Boeing Vertol 107 - CH-46 Sea Knight
6.
Ask A Marine
7.
Swan song for Navy's ugly-duckling copter
8.
9.
VMM-263 ready to write next chapter in Osprey program
10.
Type Certificate Data Sheet No. 1H16
★ Columbia Helicopters - Largest Civilian Operator of BV/KV Model 107
★ Boeing Vertol 107 & H-46 Sea Knight on Airliners.net
★ Kawasaki Vertol 107 on Airliners.net
April 1, 2004: Sailors from USS Saipan (LHA-2) rush out to unchain a CH-46 Sea Knight.
The 'Boeing CH-46 Sea Knight' is a medium-lift tandem rotor assault helicopter, used by the United States Marine Corps (USMC) to provide all-weather, day-or-night assault transport of combat troops, supplies and equipment. Assault Support is its primary function, and the movement of supplies and equipment is secondary. Additional tasks include combat support, search and rescue, support for forward refueling and rearming points, CASEVAC and Tactical Recovery of Aircraft and Personnel (TRAP).[1] The commercial version is the 'BV 107-II', commonly referred to as simply the "Vertol".[2]
Design and development
Piasecki was a pioneering developer of tandem-rotor helicopters, with the most famous previous helicopter being the Piasecki H-21 "Flying Banana". In the late 1950s, development was begun on a medium-lift tandem-rotor derivative to be marketed to both the military and commercial markets. First flight of the new helicopter, designated the 'Model 107', took place on October 25, 1960.
The original military version was the 'YHC-1A' for the U.S. Army. Rejected by the Army as being too small for its needs, it was then evaluated by the U.S. Marine Corps (USMC). The YHC-1A won the design competition in 1961 and was ordered as the HRB-1 (CH-46A after 1962). It first flew in 1962, and was first delivered to the USMC in 1964.
The CH-46 Sea Knight was first procured in 1961[3] from the Vertol Aircraft Corporation (formerly Piasecki Helicopter) under the designation of "HRB" to meet the medium-lift requirements of the Marine Corps.[4] The acquisition of Vertol by Boeing Aircraft Co. resulted in Boeing Vertol. In total, 625 H-46s were produced for the United States Navy and Marine Corps with the final version being the CH-46E (although an F variant was procured, the E was the later model.) Approximately 350 airframes CH-46D and CH-46F were converted to "E" models. These aircraft have improved avionics, hydraulics, drive train and upgraded 1870 shp T58-GE-16 engines, and are distinguished from earlier models by the square main engine exhausts. the dynamic Component Upgrade (DCU) incorporated starting in the mid-1990s provides for increased capabilities through strenghened drive systems and rotor controls.
The commercial variant, the 'BV 107-II', was first ordered by New York Airways in 1960. They took delivery of their first three aircraft, configured for 25 passengers, in July, 1962.
In 1965, Boeing Vertol sold the manufacturing rights to the commercial version to Kawasaki Heavy Industries. Prior to that, all civilian variants were built in Japan as the 'KV 107-II'.
On December 15, 2006, Columbia Helicopters acquired all type certificates for the BV and KV 107-II, and is also in the process of acquiring all of the production certificates. Plans for actual production of the aircraft have not been announced.
Operational history
Military
Known colloquially as the "Phrog", and used in all Marine combat and peacetime environments since its introduction, the last Sea Knight rolled off the assembly line in February of 1971. [5] Still regularly flown by the Marine Corps, its longevity as a reliable airframe has led to such mantras as "phrogs phorever" and "never trust a helicopter under 30. [6]." While the United States Navy retired the airframe on September 24, 2004 , replacing it with the MH-60S Knighthawk [7], the Marine Corps plans to maintain its fleet until the MV-22 is fully fielded[8] In March of 2006 Marine Medium Helicopter Squadron 263 (HMM-263) was deactivated and redesignated VMM-263 to serve as the first MV-22 squadron.[9] The replacement process is expected to continue through the other medium helicopter squadrons into 2014.
Civilian
The Civilian version, the BV 107-II ''Vertol'' was developed prior to the military CH-46, and was operated commercially by New York Airways, Pan American World Airways and currently solely by Columbia Helicopters. As of December 15, 2006 Columbia Helicopters has purchased the Type certificate of the Model 107 from Boeing[10]. Currently the company is seeking FAA issuance of a Production Certificate to produce parts with eventual issuance of a PC to produce aircraft.
Variants
US versions
Marines load a simulated casualty onto a CH-46E Sea Knight helicopter while conducting convoy operations training at Camp Dawson, West Virginia
Total U.S. H-46 production amounted to 524, ending in 1971.
;Model 107 : Company model number.
;Model 107-II : The third YHC-1 prototype was converted into a commercial airline helicopter. All subsequent commercial aircraft were produced as BV 107-II.
;Model 107M : Military transport prototype for the United States Marine Corps.
;YHC-1A : Three Model 107s for test and evaluation by the United States Army. Adopted by the United States Marine Corps as the HRB-1. Later redesignated 'YCH-46C'. Three built.
;YHC-1B : Were not Model 107s but five Model 114s that later became the CH-47A Chinook
;HRB-1 : Original designation before being renamed as CH-46A before delivery under the 1962 United States Tri-Service aircraft designation system
;CH-46A : Assault, utility medium transport and SAR helicopter for the USMC, fitted with two 935-kW (1,250-shp) General Electric T58-GE-8 turboshaft engines. (Previously HRB-1). 164 built.
;UH-46A : Utility medium transport helicopter for the US Navy. Similar to the CH-46A. 14 built.
;HH-46A : A small number of HH-46As were converted into SAR helicopters for the United States Navy base rescue role.
;RH-46A : A small number of CH-46As were converted into minesweeping helicopters for the US Navy.
;UH-46B : Development of the CH-46A to specification HX/H2 for the United States Air Force; cancelled
;YCH-46C :YHC-1A redesignated in 1962.
;CH-46D : Assault and utility medium transport helicopter for the USMC, fitted with two 1044-kW (1,400-shp) General Electric T58-GE-10 turboshaft engines. 266 built.
;HH-46D : A small number of UH-46Ds were converted into SAR helicopters.
;UH-46D : Utility transport helicopter for the US Navy combat supply role. Similar to the CH-46D. 10 built and one conversion from CH-46D.
;CH-46E : Approximately 350 -D and -F airframes were updated to CH-46E standards with improved avionics, hydraulics, drive train and upgraded 1870 shp T58-GE-16 engines.
;CH-46F : Improved version of CH-46D, electrical distribution, com/nav update BUNO 154845-157726. Last production model in the United States. 186 built
;VH-46F : VIP transport helicopter.
Canadian Versions
A CH-113 Labrador practicing an airlift from a Canadian Coast Guard cutter.
Main articles: CH-113 Labrador
;CH-113 Labrador : Search and rescue version of the Model 107-II-9 for the Canadian Forces Air Command. (18 built)
;CH-113A Voyageur : Assault and utility transport version of the Model 107-II-9 for the Canadian Forces. (12 built)
Swedish Versions
;Hkp 4A : Boeing Vertol 107-II, used originally by Air Force for SAR. (10),
;Hkp 4B : Boeing Vertol 107-II-15, Navy (3)
;HKP 4C : Kawasaki KV-107-II-16, Navy (8)
;HKP 4D : Rebuilt Hkp 4A for SAR/ASW (Navy) (4)
Japanese Versions
;KV-107II-1 (CT58-110-1)
:Utility transport version.
;KV-107II-2 (CT58-110-1)
:Commercial airline version.
;KV-107IIA-2 (CT58-140-1)
:Improved version of the KV-107/II-2.
;KV-107II-3 (CT58-110-1)
:Minesweeping version for the JMSDF, 3 built.
;KV-107II-3A (CT58-IHI-10-M1)
:Uprated version of the KV-107/II-3.
;KV-107II-4 (CT58-IHI-110-1)
:Assault and utility transport version for the JGSDF.
;KV-107II-4A (CT58-IHI-140-1)
:Uprated version of the KV-107/II-4.
;KV-107II-5 (CT58-IHI-110-1)
:Long-range SAR version for the JASDF.
;KV-107II-5A (CT58-IHI-104-1)
:Uprated version of the KV-107II-5A.
;KV-107II-7 (CT58-110-1)
:VIP transport version.
;KV-107II-16
:Powered by Rolls-Royce Gnome H.1200 turboshaft engines.
;KV-107IIA-17 (CT58-140-1)
:Long-range transport version for the Tokyo Metropolitan Police Department, 1 built.
;KV-107IIA-SM-1 (CT58-IHI-140-1M1)
:Firefighting helicopter for Saudi Arabia.
;KV-107IIA-SM-2 (CT58-IHI-140-1M1)
:Aeromedical and rescue helicopter for Saudi Arabia.
;KV-107IIA-SM-3 (CT58-IHI-140-1M1)
:VIP transport helicopter for Saudi Arabia.
;KV-107IIA-SM-4 (CT58-IHI-140-1M1)
:Air ambulance helicopter for Saudi Arabia.
Operators
Military operators
;
★ Canadian Forces Air Command
★ Canadian Coast Guard
;
★ Japan Air Self Defence Force
★ Japan Ground Self Defence Force
★ Japan Maritime Self Defence Force
;
★ Royal Saudi Air Force
;
★ Swedish Air Force
★ Swedish Navy
;
★ Thai Air Army operates KV-107IIA.
;
★ United States Navy
★ United States Marine Corps
Civilian Operators
Columbia Helicopters Inc Boeing Vertol 107 C-FHFW and Boeing 234 N245CH rest on the company pad in Aurora, Oregon
;
★ Helifor Canada Corp (under lease from Columbia Helicopters)
;
★ ''Kawasaki Helicopter System, LTD''
★ ''Tokyo Metropolitan Police Department''
;
★ Columbia Helicopters
★ ''New York Airways''
★ ''Pan Am''
''Former operators are marked by italics''
Specifications (CH-46 Sea Knight)
Orthographically projected diagram of the CH-46 Sea Knight.
References
1.
CH-46E Sea Knight Helicopter
2. Eichel, Garth, "Columbia Helicopters", ''Vertical Magazine'', February-March 2007
3. "Tandem Twosome", ''Vertical Magazine'', February-March 2007
4.
CH-46 Sea Knight [H-49] "Phrog"
5.
Boeing Vertol 107 - CH-46 Sea Knight
6.
Ask A Marine
7.
Swan song for Navy's ugly-duckling copter
8.
9.
VMM-263 ready to write next chapter in Osprey program
10.
Type Certificate Data Sheet No. 1H16
External links
★ Columbia Helicopters - Largest Civilian Operator of BV/KV Model 107
★ Boeing Vertol 107 & H-46 Sea Knight on Airliners.net
★ Kawasaki Vertol 107 on Airliners.net
Related content
This article provided by Wikipedia. To edit the contents of this article, click here for original source.
psst.. try this: add to faves
Featured Companies
| Golf Holidays International | |
| Destinations Unlimited |
Newest Companies
CH-46 Sea Knight Travel Deals
