Flying machines : construction and operation ; a practical by Octave Chanute

By Octave Chanute

Flying Machines: building and operation; a realistic booklet which exhibits, in illustrations, operating plans and textual content, tips on how to construct and navigate the fashionable airship is gifted the following in a top quality paperback version. This renowned vintage paintings by way of Octave Chanute is within the English language, and will now not comprise pictures or pictures from the unique variation. in the event you benefit from the works of Octave Chanute then we hugely suggest this book on your ebook assortment.

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Additional info for Flying machines : construction and operation ; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship

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Arthur T. " Changes In Wind Currents. While Mr. Atherholt's experience has been mainly with balloons it is all the more valuable on this account, as the balloons were at the mercy of the wind and their varying directions afforded an indisputable guide as to the changing course of the air currents. In speaking of this he said: "In the many trips taken, varying in distance traversed from twenty−five to 900 miles, it was never possible except in one instance to maintain a straight course. These uncertain currents were most noticeable in the Gordon−Bennett race from St.

The reason of this will be plain when it is understood that many of the parts essential to a 4− cylinder motor will fill the requirements of an 8−cylinder motor without enlargement or addition. Neither does multiplying the cylinders always increase the horsepower proportionately. If a 4−cylinder motor is rated at 25 horsepower it is not safe to take it for granted that double the number of cylinders will give 50 horsepower. Generally speaking, eight cylinders, the bore, stroke and speed being the same, will give double the power that can be obtained from four, but this does not always hold good.

Maximum thrust, or stress−−exercise of the greatest air−displacing force−−is the object sought. This, according to experts, is best obtained with a large propeller diameter and reasonably low speed. The diameter is the distance from end to end of the blades, which on the largest propellers ranges from 6 to 8 feet. The larger the blade surface the greater will be the volume of air displaced, and, following this, the greater will be the impulse which forces the aeroplane ahead. In all centrifugal motion there is more or less tendency to disintegration in the form of "flying off" from the center, and the larger the revolving object is the stronger is this tendency.

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