MIL-S-22999/l(AS)
Performance:
Minimum Starter Drive Torque (Lb-Ft)
and Corresponding Starter Drive Speeds (RPM)
Pressure
Differential
(PSIG)
Speed Torque Speed Torque Speed Torque Speed Torque
11,600 3
3,700
0
10
1,000 12
6,000 12
2,750
0
7
1,000
11,600 2
8.5 6,000 8.5
No-load operation: The starter shall be operated for two
minutes. The starter free-running-speed obtained during
this test, or the maximum speed attained before automatic
cutback, shall not be less than 13,000 rpm.
Proof pressure test: With the loading device adjusted to
limit starter output drive speed ,to rated speed and at
rated inlet temperature, the unit shall be operated for
five minutes at 5000-psig inlet pressure and at 500-psig
outlet pressure. There shall be no leakage from the starter
sufficient to form a drop, except from the output shaft seal
from which a maximum leakage of 5 cc per hour is allowable.
Endurance test: The starter shall be subjected to a 1200-
cycle endurance test as outlined herein. The following
schedule for fluid inlet temperature and fluid inlet pressure
shall be maintained:
Inlet Fluid
Number of
Inlet Fluid
Pressure PSIG
Temperature `F
Cycles
400
275
3750
600
3900
220
200
160
3750
All tests shall be conducted at rated outlet pressure. Each
cycle shall consist of three consecutive phases as follows:
3
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