 |
|||
|
Page Title:
Ground Maintenance.Subsystem Check-out |
|
||
| ||||||||||
|
|  MIL-S-19557/10A(AS)
REQUIREMENTS (cont'd)
Applicable paragraphs
of MIL-S-19557C(AS)
(3) Ground Maintenance.Subsystem Check-out:
With the test stand simulated engine inertia load
flywheel disconnected, accelerate to 14,875 +250 (59
1%) rpm output speed drive speed; 18.6 lb-ft
MINIMUM drive torque and operate for one hour as
shown on Figure 7.
(4) Motoring: Accelerate and run for five minutes at
the following stabilized conditions:
Test Stand
Rotor Polar
Moment of
Drive
Drive
Inertia
Torque
Speed
8.O 2
RPM
LB-FT
LB-FT
50
(MIN)
7500 (30%)
77
81.7
4.5.8
Rated Torque Calibration: (Rated conditions)
Output Drive Speed (rpm): 7500 (30%)
Maximum Airflow (lb per rein): 142
3.3.5
Overrunning: The starter output drive shall be
driven for 6000 hours in a counterclockwise direction
(viewed from the anti-output shaft end). The ambient
air temperatures and attitudes (pitch and roll) shall
vary in accordance with the following tabulation:
Ambient
Attitude
Time
Temperature
Roll
Pitch
Minutes
+2
1OF
+2
4
120
45
0
(left)
120
6
45 (climb)
o
4
120
o
90
(left)
1
120
o
90 (climb)
180
30
o
0
1
120
0
-90 (dive)
4
120
o
90
(right)
6
120
-45 (dive)
o
4
120
45
o
(right)
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals