Harper's Aircraft Book; Why Aeroplanes Fly, How to Make Models, And All About Aircraft, Little And Big
The book Harper's Aircraft Book; Why Aeroplanes Fly, How to Make Models, And All About Aircraft, Little And Big was written by author A Hyatt Alpheus Hyatt Verrill Here you can read free online of Harper's Aircraft Book; Why Aeroplanes Fly, How to Make Models, And All About Aircraft, Little And Big book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Harper's Aircraft Book; Why Aeroplanes Fly, How to Make Models, And All About Aircraft, Little And Big a good or bad book?
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i6, and are operated by push-rods, which are actuated by passing over stationary cams. The intake-valve is situated in the top of the piston, and Fig. 17 is opened by a metal dog which is operated by the centrifugal force of the revolving cylinders. The crank-case serves as the inlet for the fuel, and the whole motor is thus very simple and free from complicated parts. 154 THE HEART OF THE AEROPLANE 1 hese rotating-motors have been used extensively, and the majont)' of speed, altitude, and othe...r records were made with rotating-engines. Unfortunateljs they are very short-lived, excessivel\' costly, and are very dirty in opera- tion. As they are lubricated by castor oil, and are whirling round and round at a speed of from i.oooto i.Soo revolutions Fig. 18 a minute, the oil is thrown all about, and it is usually neces- sary to inclose the motors in a guard, or rim, of metal. A unique and distinct type of rotating-motor is the "Just- rite," made by the H. L. F. Trebert Company, of Rochester.
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