Figure 4. AH-1 Mast Wedge Assembly
When installing wedge assembly it may be necessary to
slightly rock blades using fixed length tie-downs attached to
blade sleeve assemblies to place wedge assembly in correct
(2) Carefully slide the tube up into the gap between the main rotor hub and the main rotor mast.
(3) Verify that stops on the main rotor hub fully contact mast wedge assembly and not main rotor mast.
(4) Loop lanyard attached to mast wedge assembly around main rotor hub and secure snap back onto
lanyard. Lanyard is designed to prevent mast wedge assembly from sliding down and exposing main
The disabled helicopter is now ready for hookup to the recovery helicopter.
9. RIG RECOVERY HELICOPTER (Figures 1 and 5, and Table 3)
Figure 1 details the disabled and recovery helicopter
rigging. Reference numbers in the following text that are
outlined in parentheses [i.e., (1), (2), etc.] refer to Figure 1,
View A and Table 3 item numbers. Refer to Figure 1, View
A and Table 3 for configuration guidance.
a. Place a cargo hook thimble (16, Figure 1, View A, and Figure 5) into the double eye end of heavy weight
black/white sling (14).
b. Connect the double eye end of heavy weight black/white sling (14, Figure 1, View A) with the hook thimble
installed, to the recovery helicopter center cargo hook.
c. Pull free end of heavy weight black/white sling through center cargo hook hole and secure until helicopter
being recovered is ready for hook-up.