Propeller Owner’s Manual
147
DESCRIPTION AND OPERATION
61-00-47
Page 2-26
Rev. 16 May/20
2. Propeller Blades
A. Description of Composite Blades
(1) Hartzell Propeller Inc. composite blades are constructed
by layering composite material over a foam core and a
metal blade shank.
(2) A metal erosion shield is bonded to the leading edge of
the blade to provide protection from impact and erosion.
(3) Composite blades are identified by direction of rotation,
shank design, propeller diameter, and other blade
charactieristics.
(a) Refer to the section, "Blade Model Designation" in
this chapter.
B. Blade Model Designation
(1) Hartzell Propeller Inc. uses a model number designation
system to identify specific propeller and blade
assemblies. The propeller model number and blade
model number are separated by a slash ( / ).
(a) Example:
propeller model number / blade model
number
(2) The blade model number is impression stamped on the
butt end of the blade, and also identified by a label on
the cylinder.
(3) Refer to Table 2-2 for a description of the characters
used in the blade model number.