| Mk.1 | |
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| Pre-production Martin-Baker Mk.1 seat as used in the Saunders-Roe SR.A/1 on display alongside the aircraft at the Solent Sky museum, Southampton |
The Martin-Baker Mk.1 is a British ejection seat designed and built by Martin-Baker. Developed in the late 1940s it was the first in the line of production Martin-Baker seats for military aircraft. Ground and air testing of earlier designs resulted in the first successful test ejection of a company employee in July 1946. A seat type designed for the Saunders-Roe company was known as the Pre-Mk.1.