On a real mission, the following procedures are done during taxi of the carrier airplane:
Testing the SAS Lights
- SAS lights check – Move SAS function switches [5, 6, 8, 9, fig. 5-2] to LO GAIN and check the SAS lights [1-4, fig. 5-2] (should come OFF). Return function switches to STD BY after each function trips.
Operation of Ram-Air and Augmented Cooling System (Captive Flight)
To operate the ram-air and augmented cooling systems, proceed as follows:
- Cabin source helium shutoff valve switch [11, fig. 5-9] - OFF.
- APU cooling switch [17, fig. 5-9] - SINGLE.
- Pressure cooling lever [9, fig. 5-9] - OFF.
- X-15 LN2 supply switch (B-52) - Check OPEN. Check with launch operator that switch is OPEN.
- Stable platform LN2 cooling control switch (B-52) - Check OFF. Check with launch operator that switch is OFF.
- Blower switches [10, fig. 5-9] - OFF.
- Ram-air lever [16, fig. 5-3] - OPEN.