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two young girls posing with the old airplane
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Two Young Girls Posing With The Old Airplane

• Propeller
A propeller or airscrew comprises a set of small, wing-like aerofoils set around a central hub which spins on an axis aligned in the direction of travel. Spinning the propeller creates aerodynamic lift, or thrust, in a forward direction.
A tractor design mounts the propeller in front of the power source, while a pusher design mounts it behind. Although the pusher design allows cleaner airflow over the wing, tractor configuration is more common because it allows cleaner airflow to the propeller and provides a better weight distribution.
A contra-prop arrangement has a second propeller close behind the first one on the same axis, which rotates in the opposite direction.

File information
Filename:308205.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#two #young #girls #posing #old #airplane
Filesize:83 KiB
Date added:Aug 19, 2010
Dimensions:800 x 515 pixels
Displayed:677 times
URL:displayimage.php?pid=308205
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