Instrument Readings After Servicing

The following conditions should be observed after servicing (external tanks attached):

System Monitor Panel

1. Ammonia tanks – Internal tanks, 1445 gallons; external tanks 1053 gallons.

2. Liquid oxygen tanks – Internal tanks, 1017 gallons; external tanks, 770 gallons.
   
   
3. Turbopump hydrogen peroxide (H2O2) tanks – 118 gallons.

4. Solid fuel (X-15AD-4 airplane only) – Both boosters, 100 percent.
   
   
5. Propellant source (helium) tanks – Both internal and external tanks, 3200-3800 psi.
   
   
6. Engine and propellant control source (helium) tanks – Both internal and external tanks, 3200-3800 psi.
   
   
7. Auxiliary pneumatic and control (helium) tank – 3200-3800 psi.
   
   
8. APU H2O2 tanks – 60-75 gallons, both pointers.

9. APU source (helium) tanks – 3200-3800 psi, both pointers.

10. Liquid N2 tank – 25-30 gallons.

11. Cabin helium tank – 3200-3800 psi.
    
    
12. Pilot's O2 (seat) cylinders – 3000-3200 psi.

Main Instrument Panel

1. Propellant source pressure gauge [69, fig. 5-1] – Both internal and external tanks, 3200-3800 psi.
   
   
2. H2O2 source pressure gauge [57, fig. 5-1] – Both internal and external tanks, 3200-3800 psi.
   
   
3. External tanks fuel flow indicator 4, fig. 5-1] – 0%.
   
   
4. APU source pressure gauge [45, fig. 5-1] – 3200-3800 psi, both pointers.
   
   
5. Cabin helium source pressure gauge [40, fig. 5-1] –  1000 to 3400 psi.
   
   
6. Generator (AC) voltmeter [22, fig. 5-1] – 200 volts, both pointers (external power).
   
   
7. H2O2 tank and engine control pressure gauge [55, fig. 5-1] – “T” pointer, 0 psi; “C” pointer, 575-600 psi.