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|  MIL-S-19557/9(*AS)
APPLICABLE
PARAGRAPH OF
SPECIFICATION
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 tests 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): 2100
Airflow, Max (Lb per Min): 70
Overrunning: The starter output drive shall be driven for 1000
3.3.5
hours in a clockwise direction (viewed from the anti-output shaft
4.5.9
end) in accordance with the following tabulation. The ambient air
temperatures, starter output drive speeds, and attitudes shall
vary in accordance with the following tabulation while the stater
pad temperature is maintained at 350F 20F. The attitude
transitions are to be completed within 30 seconds.
Drive Speed
Ambient
Attitude
20
RPM
Temperature
Time
..0, +500
10F
(See Note)
Minutes
0
7500
130
+45
7500
130
7500
0
130
+90
130
7500
0
7500
370
-90
7500
130
0
7500
130
7500
130
-45
7500
130
NOTE:
Position of the starter anti-drive end with respect to
the horizontal centerline.
After 300 hours of overrunning the starter shall be
subjected to 300 endurance test cycles. Lubricant
addition or change is permitted only after the 300
endurance test cycles.
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