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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
“
I am a pilot and I run a Medical Transport Squad. That means, for most of my life I am living it up in the air.” -- USN CAPT Joe Woodhaven
”
― Vampire Chimeras
― Vampire Chimeras
“
What parents needed, I believed, wasn't another book about how they had to calm down and take a break. What they needed was an actual break from the deluge of parenting books.
...more
”
― Maybe You Should Talk to Someone: A Therapist, Her Therapist, and Our Lives Revealed
― Maybe You Should Talk to Someone: A Therapist, Her Therapist, and Our Lives Revealed
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