Stuck in cockpit training

[ktodack]

Just got the sim and am working through the startup procedure training exercise-- when I get to the check oxygen test stage I get stuck, I click the button and notice the oxygen light blink, I think the instructor says it should blink below a certain pressure. I'm not sure what else I'm supposed to do, after clicking the test button I get no confirmation from the instructor and can't move on. Anybody tell what I'm missing. Thanks

[Shez]

Hold the button down. Watch the guage fall. When it falls all the way to the left (Not sure if it's zero or what the level is) you will get a warning indication.

[MustangSally]

Just got the sim and am working through the startup procedure training exercise-- when I get to the check oxygen test stage I get stuck, I click the button and notice the oxygen light blink, I think the instructor says it should blink below a certain pressure. I'm not sure what else I'm supposed to do, after clicking the test button I get no confirmation from the instructor and can't move on. Anybody tell what I'm missing. Thanks

 

Master caution, Oxy Test and Fuel Test are all click and hold.

[Frostiken]

The white oxygen light means oxygen is flowing (inhaling), and it's a mix determined by your pressure. At low altitudes, you use very little LOX, whereas at higher altitudes you need more oxygen so you're going to drain it more quickly.

 

However, keep in mind at higher altitudes (lower pressure), gasses are less compressed so if your rates of consumption were equal you'd use less oxygen at higher altitude.

 

To continue this train of knowledge, the opposite happens during Scuba diving - you're under immense pressure (~1 atmosphere every 10 meters). At sea level, you could breathe off a 3000 PSI tank of air for ages. At around 30 meters depth (100 feet), someone of good breath control will maybe get an hour and a half out of it.

[ktodack]

Thanks, I'll hold it down from now on.