 |
|||
|
|
|||
| ||||||||||
|
|  MIL-S-22999/l(AS)
Phase B -
10 sec at
Test Stand
Phase A -
Following
Phase C -
Rotor Polar
Acceleration
Acceleration
Conditions
Moment of
Drive
Drive
Drive
Load
Speed
Time
Inertia
Speed
Torque
RPM
RPM
Lb-Ft2
(Min)
S ec
Sec
(Min )
(Min)
Lb-Ft
2.6
6000
6000
5
12 +1-0
12,000 9
NOTE :
The above values do not allow for flywheel windage losses,
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 for end of Phase C to starter cutout
shall not exceed 15 seconds.
Sustained motoring:
Operational time, six minutes.
Overrunning test: The starter output shaft shall be driven
for 1000 hours in a counterclockwise direction (viewed from
the anti-output shaft end) in accordance with the following
.
tabulation:
Starter Drive Overrunning Speed - RPM
Phase A
Phase C
Phase B
750 Hours
200 Hours
50 Hours
25,600
26,300
15,800
After a maximum of each 25 hours of continuous overrunning, .
output shaft rotation shall be stopped for at least 15 minutes.
Low temperature operation: During Phase B of this test a
minimum torque of 8.2 lb-ft at a drive speed of 6000 rpm shall
be developed.
Dynamic torque check:
The maximum peak transient torque shall
be 28 lb-ft.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals