Cabin altitude is a ventilator setting

The T1 does not know it left sea level. You do.

Dalton

PIO2 = FiO2 × (Pbar − 47). At 8,000 ft Pbar is ~565 mmHg. 50% oxygen is not the 50% you had on the ramp. SpO2 will lag the climb by under a minute.

Boyle

Trapped gas expands. ET cuff, pneumothorax, bowel, ETT pilot balloon. Recheck cuff. Recheck the chest. Ask for sea-level cabin when the airframe can give it.

What to do before lift

Ask for sea-level or 2,000 ft on the train screen (Sea-level / 2,000). Climb events cannot exceed that request. Raise FiO2 10–20 points before the climb, not after the sat falls. If a pneumo is even a rumor, decompress on the ground — the clock will not do it for you.

Turbulence

False triggers. Raise the flow trigger to 4–5 L/min. Do not hide in SIMV 'so it doesn't fight.'

Flight Crew Buddy LLC

Training the best to take care of the rest

Flight Crew Buddy trains crews who use the HAMILTON-T1®

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HAMILTON-T1®, ASV®, and Hamilton Medical® are trademarks of Hamilton Medical AG and/or its affiliates.

Flight Crew Buddy LLC is not affiliated with, endorsed by, sponsored by, or a training partner of Hamilton Medical AG. This is an independent training aid. Not for clinical use. Not a substitute for manufacturer training or clinical judgment.

The on-screen ventilator is a training layout — not a photograph of the HAMILTON-T1® and not Hamilton software. We will not chase a photo of the box. Crews set the breath from IBW, the lung, sedation, and the gas. ASV® is here so you can recognize it, not as the Flight Crew Buddy default.