[sjburt]

In 1962 they would have had multi-channel magentic tape (analog) recording. The first flight data recorders date to the early 1940s.

Fitting it in ejection seat might be another challenge but I'm sure they would have developed something before moving to live subjects.

[sitkack]

Might these proto-engineers also harnessed radio waves to transport signals across the aether for a form of telemetry?