PERSONAL EQUIPMENT CONNECTORS, P.E.C.s
DESCRIPTION
The P.E.C. is a three part device for carrying essential services to the aircrew. These services are for: breathing oxygen, air ventilated suit, g-trousers, and mic/tel communications.
It is split into three parts to facilitate seat disconnection from the aircraft upon ejection, and aircrew disconnection from the seat upon separation during parachute descent.
The table below summarises PEC components used in the Lightning:
| Name | Other Names | Notes | Stores Ref. No. | Assy Number |
|---|---|---|---|---|
| Aircraft portion | Bottom portion | 3 port, all single seat Lightnings | 27L/1290 | MBEU 8912 |
| Aircraft portion | Bottom portion | 2 port, T5 & T55 only | ? | MBEU 24261 |
| Seat portion | N/A | 3 port bottom, all single seat Lightnings | ? | MBEU 14137 |
| Seat portion | N/A | 2 port bottom, T5 & T55 only | ? | ? |
| Oxygen mask hose assembly, Mk. 1 | Man portion | 6D/2073 | MBEU 8908 | |
| Oxygen mask hose assembly, Mk. 1A | Man portion | 6D/2253045 | MBEU 55744 MBEU 51351 | |
| Pressure jerkin hose assembly, Mk. 2 | High altitude man portion | 6D/2072 | MBEU 9605 |
Notes:
The Mk. 1A aircrew portion oxygen hose PEC (with anti-drowning valve) is only used with a C suffix oxygen mask (with anti-suffocation valve), such as the type P2C or type Q2C oxygen masks.
Regarding the oxygen mask hose assemblies and pressure jerkin hose assembly, the term "man portion" appears in mid-century literature, however a more appropriate term would be "aircrew portion".
SIMULATION
PEC's are being included in this simulator. As the type with 3 gaseous fittings is more readily available, as used in the T Mk. 4 and all single seat aircraft, two of these are being used in the simulator instead of the rarer T Mk. 5 and T Mk. 55 2 port versions.
Two Aircraft portions (27L/1290) have been wired for connection into the simulator audio system:
3 port PEC aircraft portions
REFERENCES
T Mk.5 mechanical "Vol. 1":
A.P.101B-1005-1A, Sect. 3, Chap. 10, A.L.56, Oct. 1971 - Oxygen System
F Mk. 3, T Mk. 5 and F Mk. 6 aircrew manual:
A.P.101B-1003, 5 & 6A, Part 1, Chapter 12, A.L.2, Nov. 1984, Pilot Equipment and Associated Systems - Paragraph 10
Aircrew Equipment Assemblies:
A.P.1182, Sect. 1, Chap. 5, A.L.30, Oct. 1959 - Personal Equipment Connector
A.P.1182, Vol. 1, Book 2, Sect. 16, Chap. 5, A.L.103, Mar. 1966 - Lightning T Mk. 5, Mk. 4BSB Ejection Seat - Paragraph 8
A.P.1182E, Vol. 1, Sect. 4, Chap. 8, A.L.107, Mar. 1964 - Oxygen Hose Assemblies - Low Altitude PECs
A.P.1182E, Vol. 1, Sect. 4, Chap. 9, A.L.104, Jan. 1964 - Pressure Jerkin Hose Assemblies - High Altitude PECs
A.P.108F-0904-12, Jan 1987, Oxygen Hose Assemblies
Flying - The Aircrew, Airmanship and Aircraft Performance:
A.P.3456E, Part 1, Sect. 2, Chap. 1, A.L.14, Mar. 1984 - Oxygen Equipment and Assemblies
ML Aviation:
ML Aviation, July 1975 Hose Assemblies and Connectors
ML Aviation, 1966, F Mk. 3 Lightning aircrew equipment assemblies (AEA)