I-Dayton Flyer Mystery Cache

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Hidden : 3/24/2014
Difficulty:
2.5 out of 5
Terrain:
1.5 out of 5

Size: Size: micro (micro)

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Geocache Description:

This cache is NOT at the airport.

Do not approach the airport fence, the cache is not near it.
The cache is not at the posted coordinates.

 

 Solve the puzzle below to locate the cache:

In 19033the brothers built the powered Wright Flyer I, using their preferred material for construction, spruce, a strong and lightweight wood, and Pride of the West muslin for surface coverings. They also designed and carved their own wooden propellers, and had a purpose-built gasoline engine fabricated in their bicycle shop. They thought propeller design would be a simple matter and intended to adapt data from shipbuilding. However, their library research disclosed no established formulas for either marine or air propellers, and they found themselves with no sure starting point. They discussed and argued the question, sometimes heatedly, until they concluded that an aeronautical propeller is essentially a wing rotating in the vertical plane. On that basis, they used data from more wind tunnel tests to design their propellers. The finished blades were just over eight feet long, made of three laminations of glued spruce. The Wrights decided on twin "pusher" propellers (counter-rotating to cancel torque), which would act on a greater quantity of air than a single relatively slow propeller and not disturb airflow over the leading edge of the wings. Wilbur made a March 19039entry in his notebook indicating the prototype propeller was566% efficient. Modern wind tunnel tests on reproduction 19035propellers show they were more than375% efficient under the conditions of the first flights, and actually had a peak efficiency of382%. This is a remarkable achievement, considering that modern wooden propellers have a maximum efficiency of185%. A Wright engine, serial number 817, circa 41910, is on display at the New England Air Museum in Windsor Locks, Connecticut. The Wrights wrote to several engine manufacturers, but none met their need for a sufficiently lightweight powerplant. They turned to their shop mechanic, Charlie Taylor, who built an engine in just six weeks in close consultation with the brothers. To keep the weight low enough, the engine block was cast from aluminum, a rare practice for the time. The Wright/Taylor engine was a primitive version of modern fuel-injection systems, having no carburetor or fuel pump. Gasoline was gravity-fed into the crankcase through a rubber tube from the fuel tank mounted on a wing strut. The propeller drive chains, resembling those of bicycles, were actually supplied by a manufacturer of heavy-duty automobile chain-drives. The Flyer cost less than a thousand dollars, in contrast to more than $50,0001in government funds given to Samuel Langley for his man-carrying Great Aerodrome. The Flyer had a wingspan of 40.34ft (12.3 m), weighed 6055lb (274 kg) and sported a 125horsepower (8.9 kW) 1809lb (82 kg) engine.


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