Propeller Owner's Manual
136
INTRODUCTION
61-00-36
Page 1-13
Rev. 2 Feb/17
Constant Speed . . . . . .
A propeller system which employs
a governing device to maintain a
selected engine RPM.
Corrosion . . . . . . . . . . .
Gradual material removal or
deterioration due to chemical action.
Crack
. . . . . . . . . . . . . .
Irregularly shaped separation within
a material, sometimes visible as a
narrow opening at the surface.
Depression . . . . . . . . . .
Surface area where the material has
been compressed but not removed.
Distortion . . . . . . . . . . .
Alteration of the original shape or
size of a component.
Erosion . . . . . . . . . . . . .
Gradual wearing away or
deterioration due to action of the
elements.
Exposure
. . . . . . . . . . .
Material open to action of the
elements.
Feather . . . . . . . . . . . . .
A blade angle position for all blades
in a propeller that will minimize the
blade and propeller drag on the
airplane by not extracting rotational
energy from the air that flows
through the propeller disc when the
aircraft is in flight and the engine is
not operating.
Gouge . . . . . . . . . . . . . .
Surface area where material has
been removed
Hazardous Propeller
Effect
. . . . . . . . . . . . . .
The hazardous propeller effects
are defined in Title 14 CFR section
35.15(g)(1).
Horizontal Balance
. . . .
Balance between the blade tip and
the center of the hub.
Term
Definition
