Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship.

In the operation of these rudders—both front and rear—and the elevation and depression of the main planes, the Curtiss system is employed. Pushing the steering-wheel post outward depresses the front edges of the planes, and brings the machine downward; pulling the steering-wheel post inward elevates the front edges of the planes and causes the machine to ascend.

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Turning the steering wheel itself to the right swings the tail rudder to the left, and the machine, obeying this like a boat, turns in the same direction as the wheel is turned. By like cause turning the wheel to the left turns the machine to the left.

Walden's Automatic Stability System.
The four tubes represent the 4-cylinder motor; A—engine shaft, B—auxiliary shaft, D, D, D—ball bearings: E, E—separating rods; F and G—methods of attaching propeller.

[Description: Black and white illustration: Diagram of device with four cylinders.]

	CHAPTER XVII. SOME OF THE NEW DESIGNS. Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship.

University of Virginia Library

The Method of Control.

Walden's Automatic Stability System. The four tubes represent the 4-cylinder motor; A—engine shaft, B—auxiliary shaft, D, D, D—ball bearings: E, E—separating rods; F and G—methods of attaching propeller.

Walden's Automatic Stability System.
The four tubes represent the 4-cylinder motor; A—engine shaft, B—auxiliary shaft, D, D, D—ball bearings: E, E—separating rods; F and G—methods of attaching propeller.