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|  MIL-S-19557/4(AS)
APPLICABLE
PARAGRAPH OF
SPECIFICATION
Phase B -
Phase C -
Phase A -
Test Stand
Acceleration
At Following Conditions
Acceleration
Rotor Polar
Drive
Drive
Drive
Drive
Moment of
Inertia
2
50
50
Sec
RPM
Sec
Sec
(Min)
Lb-Ft
190
525
10
1950
12
1000
8
1000
The above values do not allow for flywheel windage losses,
NOTE :
test stand drag, or inertia of the starter. In order to
determine compliance with this specification, the test
equipment must be calibrated and specific test results
corrected accordingly. If the acceleration specified
for Phase C is not developed because of test stand drag
torque, the test stand inertia load may be reduced or
external power may be applied to assist acceleration to
cutout speed. Time from end of Phase C to starter cutout
shall not exceed 15 seconds.
Rated Torque Calibration:
4.5.8
Minimum Output Drive Speed (RPM): 1000
Airflow, Max (Lb per Min): 90
Overrunning: The starter output drive shall be
3.3.5
driven for 1000 hours in a clockwise direction
4.5.9
(viewed from the anti-output shaft end) in
accordance with the following tabulation:
Stinter Drive Overrunning Speed RPM 200.
Phase C
Phase B
Phase A
200 Hrs
50 Hrs
750 Hrs
7000
4360
6800
3
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