Stores Ref: 6D/2216 | Martin Baker Part No: MBEU/13497
The Mk4 PEC was only used in the Royal Navy for the Buccaneer and Sea Vixen.
It was superseded by the Mk4 when the underwater escape / ejection system was introduced to these aircraft.
A "Fighter Type" PEC for low altitude, it provided connections for: breathing oxygen, AVS, anti-G trousers, and communications.