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Sunday, October 20, 2013

10 World's Largest Helicopters (Part-1)

Conflicts and disasters are not always considered to be something bad. But there are positive things behind it, which triggers the development for better technology. One of them in terms of technological development of air transport, such as the helicopter.

Here are the 1st part of ten largest in the history of transport helicopters, as quoted from Autoevolution. These helicopters can fly with a maximum take-off weight of more than 10 tons.

10. Boeing Vertol CH-46 Sea Knight
Flying with twin turbines, CH-46A Sea Knight is the result of a design competition for helicopter transport. Helicopter used by the United States Marine Corps in 1961. Sea Knight used by the military during the Vietnam War, its job is to carry troops and cargo to and from the U.S. Navy ships in the China Sea. Powered by two General Electric T-58-GE-16 turboshaft engines. 
Boeing Vertol CH-46 Sea Knight. (Picture from: http://www.aviation-history.com/)
Helicopter which has 13.92 meters long with a diameter of 16 meter blades. Boeing Vertol CH-46 Sea Knight has a default maximum take-off weight of 11 tons.

9. Aérospatiale SA 321 Super Frelon
The Aérospatiale SA 321 Super Frelon helicopter was made ​​in France. It equipped with three Turbomeca Turmo turboshafts IIIC engines that made ​​by Aérospatiale, France. The helicopter can carry a maximum take-off weight of 13 tons. It has 23.03 meters in length and 18.9 meter of blades diameter.
Aérospatiale SA 321 Super Frelon. (Picture from: http://www.autoevolution.com/)

8. Sikorsky CH-54 Tarhe 
Sikorsky CH-54 Tarhe helicopter was first flew in 1962 and made for the U.S. Army. This helicopter is used in aircraft recovery operations when the load is too heavy. Other uses CH-54 is also able to drop to create a landing zone in the dense forest. Its function is quite versatile, able to work as a maintenance mobile command post, or a Mobile Army Hospital (MASH). 
Sikorsky CH-54 Tarhe. (Picture from: http://en.wikipedia.org/)
Sikorsky CH-54 Tarhe driven by two Pratt &Whitney T73-P-700 turboshaft engines. With 26.97 meters in length and a propeller diameter of 21.95 meters. This helicopter can carry a maximum load during take-off reaches 21 tons.

7. Boeing CH-47D Chinook 

Boeing CH-47D Chinook helicopter is one of the most popular in the world and have a multi mission. It could be used for military purposes such as moving troops, artillery, ammunition, fuel and disaster relief purposes such as medical evacuation and firefighting. This helicopter uses two propeller systems, and Chinook helicopters are the most efficient transportation helicopter. Its ability to carry the load maximum take-off weight of 22.68 tonnes and has 30.1 meters in length with a blades diameter of 18.3 meter.
Boeing CH-47D Chinook. (Picture from: http://www.airliners.net/)

6. Bell-Boeing V-22 Osprey
Unlike another helicopters in general, Bell-Boeing V-22 Osprey takes off and lands like a helicopter, but could fly like an airplane. Its powered by two Rolls-Royce Allison T406/AE 1107C -Liberty engines, with a propeller diameter 11.6 meters. Total length is 17.5 meters.
Bell-Boeing V-22 Osprey. (Picture from: http://www.flugzeuginfo.net/)
Bell-Boeing V-22 Osprey can carry the load of 9.07 tons of internal cargo with more than 6.8 tons. And also can carry load maximum take-off weight reached 27.4 tons. (Jump to related article.) *** [EKA | FROM VARIOUS SOURCES | AUTOEVOLUTION]
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