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|  MIL-S-85419 (AS)
TABLE VI - START CYCLE TEST CONDITIONS
NOTE :
The above values do not allow for flywheel windage losses,
In order to
test stand drag, or inertia of the starter.
determine compliance with this specification, the test
equipment must be calibrated and specific test results
corrected accordingly. If the acceleration specified to
cutout 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.
4.5.2.3 Rapid Starting Cycles. Ten series of rapid starts shall
be run as specified in paragraph 4.5.2.2. Each series shall
consist of three start cycles with no more than 60 seconds
between completion of one cycle and the initiation of the next.
A thirty-minute cooling period will be observed prior to the next
starter operation.
The starter/APU shall be subjected to
4.5.2.4 Cranking.
cranking cycles of 40-second duration with the output shaft speed
limited, by a resistive torque, to 1700 to 1900 rpm as specified
in paragraph 4.5.2.2.
4.5.2.5 APU Operation. The starter/APU shall be operated in one
hour and two hour cycles as specified in paragraph 4.5.2. A one
hour cycle shall consist of
a.
APU start
b.
5 minutes at 1.5KVA
20 minutes at 6KVA
4 minutes at 3KVA
e.
1 minute at no load
f.
4 minutes at 3KVA
20 minutes at 4.5KVA
g.
h.
6 minutes at 1.5KVA
The two hour cycles will double the time at each condition.
33
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