PURE AIR PRESSURE INDICATOR TYPE S63.4.1248
(FOR RED TOP INSTALLATION)
LEADING PARTICULARS
| Stores Ref. No.: | 6A/8157 |
| Manufacturer: | Samgamo Weston |
| Connection: | Screw terminals |
| Attachment: | HERE |
DESCRIPTION
This indicator is fitted to panel A1 in conjunction with installation of the Red Top missile weapons pack. It indicates the pressure of a "pure air" bottle in the weapons pack, which is used to cool the missiles during arming.
The break in the white arc at 4500 psi indicates the mimimum pressure for take-off, and the white radial line between the red and yellow sectors at 1850 psi indicates the minimum pressuer for effective missile cooling.
REPAIR
The indicator sourced for this project unfortunately was internally damaged. The pointer and moving coil spindle mechanism was broken into two pieces, so requires a very delicate strip-down to see if a repair is possible. Unfortunately where the spindle had broken was adjacent to the moving coils, so some damage to the coils may be present.
SIMULATION
The electrical signals to this indicator are to be simulated as it's another indictor to check as part of the pre-flight checks. The pressure can also be simulated to gradually decrease if the guided weapons are selected.
REFERENCES
Indicator general and technical information:
AP 112G-0504-16, Chap. 2-0, ALl1 April 1967 - Pressure and Position Indicators, Type S63 Series
AP 112G-0504-16, Chap. 2-1, ALl1 April 1967 - Standard Serviceability Test for S63 Series Indicators
AP 112G-0504-16, Chap. 2-20, ALl1 April 1967 - Indicator Type S63-4-1248
Sangamo Weston Manual:
Electrical Instruments For Aircraft, Section 0 - Prelim
Electrical Instruments For Aircraft, Section 6 - Presure Indicators