jrh
Well-Known Member
Occasionally when I'm taxiing out, I'll hear an aircraft talking to ATC about their need to do a "cross bleed start" and making sure the area behind them is clear. I think it's usually been 737s or RJs I've heard.
So, not being a jet driver myself, anyone care to explain what's going on? I'm assuming the jet is powering up one engine, then using bleed air to get the other side going.
However, I'm curious about the specifics. Why is this required in some cases versus traditional (electrical?) means of starting?
I'm familiar with PT6 turboprops from flying the Meridian, and have watched crews start any number of jets while jumpseating, but otherwise don't know much about jet operations. Just curious. Thanks!
So, not being a jet driver myself, anyone care to explain what's going on? I'm assuming the jet is powering up one engine, then using bleed air to get the other side going.
However, I'm curious about the specifics. Why is this required in some cases versus traditional (electrical?) means of starting?
I'm familiar with PT6 turboprops from flying the Meridian, and have watched crews start any number of jets while jumpseating, but otherwise don't know much about jet operations. Just curious. Thanks!