On Tuesday, April 5, 2016 at 8:29:17 AM UTC-4, Surge wrote:
People still fly with manually adjusted oxygen systems? :-o

That's like flying with a mechanical vario (no audio).
It can be done but is it really in one's best interest to be constantly fiddling with things inside the cockpit?

Sure. I fly about ten flights a year with ox... and most of those to altitude where the MH system isn't really the preferred tool.

btw... "constantly fiddling" (in general) means "you're doing it wrong". :-o

T8