The non-rotating inner ring could be tilted and moved along the rotor shaft . The outer ring rotated with the rotor and adjusted blade angles via rods.
22.
The swashplate can also change its angle to move the blades angle forwards or backwards, or left and right, to make the helicopter move in those directions.
23.
A "'propeller governor "'senses the speed of an aircraft engine and changes the propeller blade angle to maintain a selected RPM regardless of the operational conditions of the aircraft.
24.
The NTSB found that the flight crew would have been unable to perceive any problem with the airplane until the propeller blade angle was between 24 and 26 degrees.
25.
Tucked inside a small, white envelope are four type-written lines on a rectangular slip of paper, and a razor blade angled so that it can slice open a fingertip.
26.
The latest systems are able to change the blade angles within the course of a single rotation, thereby enabling the windmill to best exploit different wind speeds at different heights.
27.
In July 1993 and in December 1994, the agency issued directives suggesting changes to prevent loss of control of the propeller blade angle from excessive wear of mechanisms inside the hub.
28.
It was originally believed that a blade angled only on one side cuts better and makes cleaner cuts, though requiring more skill in its use than a blade with a double-beveled edge.
29.
Just as with laryngoscope blades, there are also several types of available stylets, such as the Verathon Stylet, which is specifically designed to follow the 60?blade angle of the GlideScope video laryngoscope.
30.
The company is noted for its use of the Clark Y airfoil, infinite blade angle adjustment, as well as for the very low rotating inertia of its designs, a key wear factor on lightweight engine gearboxes.
