Worked on the electrics of the controls today, seen here with some of the aircraft performance monitors. I've devised a 4-page checklist (lower left) to ensure that all stages of pressurizing and depressurizing the suit are done in a safe sequence. It's interesting to learn the significance of such checklists, and not just because someone has told me that they're important (I have in mind an article about the history of aviation checklists, which is pretty interesting!) but because as my system grows in complexity--though I am keeping it as simple as humanly possible--my life is staked on an increasingly long list of correct actions RE valves and other controls.
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