Propeller Owner’s Manual
139
DESCRIPTION AND OPERATION
61-00-39
Page 2-30
Rev. 17 Apr/20
2. Propeller Blades
A. Description of Aluminum Blades
(1) Aluminum propeller blades are manufactured from one
solid piece of aluminum that has been forged and heat-
treated prior to manufacture.
(2) Aluminum blades are identified by shank design,
propeller diameter, tip configurations, 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 the applicable table for a description of the
characters used in the blade model number:
(a) Aluminum blades: Refer to Table 2-2
