Propeller Owner’s Manual
147
INTRODUCTION
61-00-47
Page 1-19
Rev. 16 May/20
Term
Definition
Blade Centerline
An imaginary reference line through the
length of a blade around which the blade
rotates
Blade Station
Refers to a location on an individual blade
for blade inspection purposes. It is a
measurement from the blade “zero” station
to a location on a blade, used to apply
blade specification data in blade overhaul
manuals.
Note: Do not confuse
blade station
with
reference blade radius
; they may
not originate at the same location.
Blemish
An imperfection with visible attributes, but
having no impact on safety or utility
Brinelling
A depression caused by failure of the
material in compression
Bulge
An outward curve or bend
Camber
The surface of the blade that is directed
toward the front of the aircraft. It is the low
pressure, or suction, side of the blade. The
camber side is convex in shape over the
entire length of the blade.
Chord
A straight line distance between the leading
and trailing edges of an airfoil
Chordwise
A direction that is generally from the leading
edge to the trailing edge of an airfoil
Co-bonded
The act of bonding a composite laminate
and simultaneously curing it to some other
prepared surface
