Flight
The aircraft propeller looks like a simple mechanism to the uneducated individual. To the educated, an aircraft propeller represents the highest sophistication in aerodynamics, mechanical engineering and structural design. This report will touch on the history of the propeller, from early pioneers/experiments, advancement during/after the war, all the way up to current applications of the propeller. The creation of the propeller can be traced back to Leonardo da Vinci. Da Vinci’s “helical screw” helicopter is believed to be the ancestor of the air propeller and the helicopter rotor. The first idea of a propulsive airscrew, however, belongs to J.P. Paucton, a French mathematician. Paucton envisioned a flying machine that had two airscrews, one for propulsion and the other for sustaining flight. The idea of using an airscrew for propulsion was utilized during the late 1700’s to early 1800’s. Only after experimentation did the inventors conclude that more propulsive power could be obtained by merely straightening out the surface of the airscrew blades. Attempts to utilize the “straight blade” propeller were made by balloonists. These
experiments of da Vinci, the wooden props of the Wright brothers, the design of the variable pitch produce maximum thrust under certain conditions, an early recognition of the need for changing shaped airships by experimenting with sails, propellers, and paddlewheels but all produced limited Wright brother’s propeller was 66% efficient which was much higher that any other propeller of the
Some topics in this essay:
Turnbull Turnbull,
American Pine,
Hamilton Standard,
Paucton French,
Lucien Chauviere,
History Propeller,
Hiram Maxim,
Chalais-Meudon Villacoublay,
Thomas Moy,
Da Vinci’s,
metal propeller,
adjustable propeller,
wright brothers,
pitch propeller,
ground adjustable,
da vinci,
history propeller,
hamilton standard,
variable pitch,
ground adjustable propeller,
applications propeller,
variable pitch blades,
airship “la france”,
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Approximate Word count = 1526
Approximate Pages = 6 (250 words per page double spaced)
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