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Contemporary research demonstrates that bomber crews, who suffered high casualty rates during World War II, often developed strong bonds with the planes they were flying, and affectionately decorated them with nose art. [17] [18] It was also believed by the flight crews that the nose art was bringing luck to the planes. [19]
An airplane (North American English), an aeroplane (British English), or a plane (informal), is a fixed-wing aircraft that is propelled forward by thrust from a jet ...
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Consider an idealised Gaussian optical system, with the image and the object in the same medium.Thus, for an object in focus, the distance between the lens and image plane , the distance between lens and the object , and the focal length are related by the thin-lens equation:
The Bensen B-12, variously dubbed the Sky-Way or Sky-Mat was an unconventional multirotor developed by Igor Bensen in the United States in the late 1950s. Extremely unorthodox, the design sprang from Bensen's thinking about the engine redundancy necessary to ensure the safe operation of small, personal rotorcraft operating at low altitudes and slow speeds.
Perspective images are created with reference to a particular center of vision for the picture plane. In order for the resulting image to appear identical to the original scene, a viewer must view the image from the exact vantage point used in the calculations relative to the image.
The brothers tossed a coin to decide who would get the first chance at piloting, and Wilbur won. The airplane left the rail, but Wilbur pulled up too sharply, stalled, and came down after covering 105 ft (32 m) in 3 1 ⁄ 2 seconds, sustaining little damage. [6] [13] Repairs after the abortive first flight took three days.