6 ms·
>Dropping O2 from 30% to 29% Dry air is ~21% oxygen by volume.
by ddeck 5y ago
>Dropping O2 from 30% to 29%
Dry air is ~21% oxygen by volume.
- gpm 5y agoAh, oops, you're correct of course. The general point still stands though (at 5% instead of 3% and 1500 feet instead of 1000) I'm getting the density numbers from here by the way if you want to check the rest of my math: https://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html https://www.engineeringtoolbox.com/air-altitude-pressure-d_4...