The aircraft were healthy.
The conditions were controlled.
The seat still needed to prove itself in the situation for which James Martin had built it.
That moment came on May 30, 1949.
Test pilot John Oliver "Jo" Lancaster was flying the experimental Armstrong Whitworth AW.52 when the aircraft developed a serious control problem.
Lancaster was not planning to test the ejection seat.
He needed it.
The aircraft could no longer be trusted to bring him safely back.
Lancaster activated the pre-Mk1 Martin-Baker seat.
He was thrown clear.
He survived.
Martin-Baker recognizes Lancaster as its Ejectee No. 1, the first pilot whose life was saved during a genuine emergency by one of the company's ejection seats.
The significance of the event was obvious.
Three years earlier, Bernard Lynch had left a perfectly good Meteor because engineers needed proof.
Lancaster left a failing aircraft because he needed to live.
The same basic principle connected the two men.
The system worked.
Lynch had proven the seat before Lancaster needed it
Lancaster's emergency escape gives Lynch's testing its full meaning.
An operational safety system cannot be improvised after the emergency begins.
The dangerous questions have to be answered earlier.
How quickly will the seat accelerate?
Will the spine tolerate the load?
Will the pilot clear the tail?
Will the airflow tear his head backward?
Will the seat tumble?
Will the drogue deploy?
Will the parachute sequence work?
Lancaster did not have time to ask any of those questions while his aircraft was becoming uncontrollable.
Lynch and the engineers had already asked them.
That is the hidden structure behind almost every mature safety system.
One person survives an emergency because someone else accepted the risk of testing the equipment before the emergency existed.
Lancaster became the first life saved.
Lynch became one of the people who made that first save possible.
Martin-Baker continued using Lynch for more than one famous jump
The July 1946 test is the event most often associated with Bernard Lynch, but his involvement did not end when he landed.
Martin-Baker's current corporate history says that Lynch completed another 16 test ejections after his first airborne test. An older technical history describes him as having made 30 live airborne test ejections, while a Martin-Baker article about Jo Lancaster refers to Lynch as a 31-time ejection-seat tester.
The differing totals likely reflect differences in which tests or configurations were being counted.
The central fact is not disputed.
Lynch did not volunteer once.
He repeatedly placed himself in experimental escape systems while engineers expanded their understanding of what the human body and equipment could tolerate.
This repetition made the data valuable.
One successful ejection might be dismissed as favorable conditions.
Repeated ejections at different speeds and configurations could reveal patterns.
The engineers could change one component and compare Lynch's experience.
They could alter the drogue.
They could change the firing characteristics.
They could test new seat arrangements.
Lynch gave them a living reference.
His body was part of the instrumentation
Modern aerospace testing relies heavily on sophisticated sensors and computer models.
Lynch's era had instruments, but they were far less capable.