Environmentalism

 Oxygen, not CO2, is what's important

The Environmental, Oxygen, and Vacuum/Pneumatic systems occupied our class study today. The quiz required drawing either the fuel or electrical system. I drew the fuel system, rather badly, as it turns out. Gotta do more drawing during study time tonight. We are required to draw the Environmental/Vacuum/Pneumatic system for the final test, so that's what I'll be concentrating on the most.

We also got the longest flow tonight, the one that happens at engine run up. It was tough, but doable. Some practice with my personal "paper tiger" will make it smooth.

Tomorrow, Ice and Rain, Flaps, and Landing Gear systems.