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Helicopters
A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of VTOL (vertical takeoff and landing) aircraft cannot perform.
The English word helicopter is adapted from the French word hélicoptère, coined by Gustave Ponton d'Amécourt in 1861, which originates from the Greek helix (ἕλιξ) "helix, spiral, whirl, convolution" and pteron (πτερόν) ...more
The English word helicopter is adapted from the French word hélicoptère, coined by Gustave Ponton d'Amécourt in 1861, which originates from the Greek helix (ἕλιξ) "helix, spiral, whirl, convolution" and pteron (πτερόν) ...more
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"It's okay," Rafe said again. "They've got you."
The helicopter spun, whipping us around. Pain shot through me as Rafe's weight almost wrenched my shoulders out of their sockets, and my hold on his wrists broke. Corey lost his grip on my leg. I heard him shout and Daniel shout and the girls join in, and I kicked, trying to get my leg back up where someone could grab it.
The helicopter tilted again. I started to slide, Daniel sliding with me. And I knew we were going to fall. Rafe, me, Daniel,
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― The Calling
― The Calling
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You can't imagine what the interior of sixteen or eighteen cubic feet is like with all of these people screaming, and yelling, and talking, and howling. [...] Not to mention the radio squealing. And the bullets flying. And explosions going up. You just can't imagine the chaos that goes through your head. And it requires immense concentration, and effort, to focus on what you job is. [Tom Kelley, Vietnam Medic from December 1967-December 1968, speaking about events inside the medevac helicopters]
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― Boots on the Ground: America's War in Vietnam
― Boots on the Ground: America's War in Vietnam
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