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Bell 412 |
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The Bell 412 is a utility helicopter of the Huey family. With the difference being the rotor that is composite, It's a development of the Bell 212.
Sikorsky CH-53E Super Stallion |
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<p>The Sikorsky CH-53E Super Stallion is a heavy-lift helicopter operated by the USA military. </p>Since the Sikorsky S-80 it was developed in the CH-53 Sea Stallion, mainly by canting the tail rotor 20 degrees, adding a seventh blade to the rotor and adding a third engine. Sikorsky Aircraft for the United States Marine Corps built it.