Technical data

13773-001
61-00
Page 1
PROPELLER
1. GENERAL
The airplane employs a 3 blade, Hartzell Compact PHC-J3YF-1RF/F7694, constant speed, non-feathering
propeller. The aluminum blades are mounted in an aluminum hub which contains the pitch changing mech-
anism consisting of a piston/cylinder, piston rod, and blade actuating components. For propeller speed
adjustment, a propeller control cable is terminated on a cam plate which is mounted to the throttle control
lever. This connection mechanically adjusts the propeller speed by increasing oil pressure from an engine
mounted governor to move the blades into high pitch or reduced RPM. A spring and centrifugal twisting
moment of the blades moves them to low pitch in the absence of governor oil pressure. Under this
arrangement, the propeller is set to 2700 RPM for full forward throttle takeoff and climb, 2500 RPM for
cruise, and approximately 1900 RPM at propeller check detent.
30 Nov 2000