Lighten our darkness, oh Lord! The lighting thread

[Juud]

Ah yes yes yes! <jumps up and down in ppruning chair excitedly>

I think I am getting it BOAC. It was the punctuation doing me in there. (of course nothing to do with the fact that I don't know my **** from my elbow regarding jet engines)

The extra thrust take-off is achieved by either doing an unpressurised one, or by achieving pressurisation through use of the APU compressor rather than 'stealing' bleed air from the engines, correct?
<looks expectantly at BOAC for a gold star in copybook>

Which inexorably leads to a next question (that saying about a fool and ten wise men has a lot of truth in it) in fact something I have wondered about for years. But I'll save that one for tomorrow, because I will first have to figure out how to make you understand what it is I don't understand.

Also, you well deserve a break from my badgering.
Thank you so far.