As aircraft began carrying two crew members in tandem, sequencing became critical so one seat would not interfere with the other.
As pilot populations became more diverse in size and body mass, designers had to ensure that the same seat could protect a wider range of people.
The ejection seat therefore became a system that evolves beside the aircraft.
Lynch tested one generation.
The problem continued.
Modern sequencing shows how far the technology traveled
Martin-Baker's modern ejection-seat descriptions reveal a system far removed from the one Lynch used.
A contemporary seat may begin by creating a path through or away from the canopy.
The ejection gun launches the seat.
Additional rocket propulsion may increase clearance and altitude.
Stabilization devices control the seat.
Sensors and electronic systems evaluate conditions.
The main parachute is deployed at the appropriate point.
The occupant is automatically separated.
A survival kit can descend with the pilot, containing equipment such as a life raft and rescue beacon.
The pilot does not have to release a harness manually and push away before pulling a conventional ripcord, as Lynch did.
Automation removes time.
It also removes dependence on a pilot who may be injured, frightened, disoriented, or unconscious.
The system attempts to assume control at exactly the moment human capability may be lowest.
The technology also changed how dangerous aircraft could be tested
The importance of ejection seats extends beyond emergencies in ordinary military service.
Experimental aircraft operate near unknown boundaries.
Test pilots intentionally explore stalls, high-speed instability, structural loads, control problems, and systems that may not behave as predicted.
Before effective assisted escape, testing a radical high-speed aircraft meant accepting that some failures could leave the pilot with almost no practical way out.
A reliable ejection seat changed that equation.
It did not make experimental flight safe.
It created a last survival option.
That option helped separate aircraft loss from pilot loss.
A prototype could be destroyed without automatically killing the person who had been evaluating it.
This did not eliminate risk.
It made certain risks more acceptable.
In that sense, ejection-seat development indirectly helped high-performance aviation advance.
The safety system supported experimentation by giving the human being another exit from failure.
The company eventually became more famous for escape than for airplanes
Martin-Baker had designed complete aircraft.
Several showed impressive performance.
Yet the company became internationally known not for the fighters it hoped to build, but for the seats installed inside other manufacturers' aircraft.
There is a historical irony in that transformation.
A company founded to build airplanes found its enduring purpose in helping pilots leave them.
The names Martin and Baker remained together.
Valentine Baker did not live to see the technology.
James Martin continued the work.
Bernard Lynch became the human test subject.
Jo Lancaster became the first emergency survivor.
Thousands of later pilots followed.
The company identity became tied to the moment when everything else in an aircraft has failed.
The face-screen handle represented a larger design philosophy
The early face-screen firing control deserves one final look because it demonstrates how thoughtful the system already was.
A frightened pilot in an emergency might not remember a long checklist.
He might be under high g-force.
Smoke might be entering the cockpit.
His aircraft might be rolling.