CHAPTER XXV.
NEW MOTORS AND DEVICES. Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship. | ||
Roberts Aviation Motor.
One of the successful aviation motors of American make, is that
produced by the Roberts Motor Co., of Sandusky, Ohio. It is designed by
E. W. Roberts, M. E., who was formerly chief assistant and designer for
Sir Hiram Maxim, when the latter was making his celebrated aeronautical
experiments in England in 1894-95. This motor is made in both the 4-and
6-cylinder forms. The 4-cylinder motor weighs complete with Bosch
magneto and carbureter 165 pounds, and will develop
Holbrook Motor. Simplicity Is the Main Feature.
[Description: Black and white illustration of motor.]
Extreme lightness has been secured by doing away with all superfluous parts, rather than by a shaving down of materials to a dangerous thinness. For example, there is neither an intake or exhaust manifold on the motor. The distributing valve forms a part of the crankcase as does the water intake, and the gear pump. Magnalium takes the place of aluminum in
CHAPTER XXV.
NEW MOTORS AND DEVICES. Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship. | ||