Optional Equipment
Rescue Hoist
CSP
−
902RFM207E
−
1
ROTORCRAFT FLIGHT MANUAL
MD900 (902 Configuration with PW 207E)
FAA Approved
Reissue 2
Original
10
−
45
PART VII
SYSTEM DESCRIPTION
The hoist assembly consists of a cable drum that holds 245 feet (75.7 meters) of
3/16” in. (5 millimeter) spin resistant cable, a fail safe load brake, 28 VDC electric
motor, limit switches coupled to the cable drum to control fully-extended and inter
mediate cable positions, and redundant switches. The hoist installation is mounted
to the airframe by a support tube and strut assembly (Ref. Figure 10-17).
Hoist speed control is accomplished by a command applied to either the variable
speed switch on the hoist operator's control pendant or the constant speed switch
located on the collective control module. With the load selection switch set at 250,
cable speed is 225 feet (68.5 meters) per minute. With the load selection switch
set at 600, cable speed is 100 feet (30.5 meters) per minute (Ref. Figure 10-15).
If the load select switch is set at 250 and the hoist load is above 250 LB, a flashing
warning light will illuminate and the hoist speed will automatically be reduced
to 100 feet (30.5 meters) per minute.
The controller also passes cable position information from the hoist. This position
information is absolute and will continue to provide cable position information if
power is interrupted.
The pilot's payout switch overrides the hoist operator. When the pilot operates the
payout switch, the hoist is automatically set to the 600 LB 100 feet (30.5 meters)
per minute mode.
Additional information pertaining to the hoist installation may be found in the
Breeze-Eastern Corp. manual TD-92-015.
Summary of Contents for MD900 Explorer
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