EGT, Bleeds & N1 ?
Assuming a - 30º C – the Turbo Jet Engine produces Max Thrust with Bleeds Off – right? Now if we go Bleeds On we get less thrust and lower N1 – 100.1% Bleeds On versus 101.0% Bleeds Off at Sea Level on the engine that I’m looking at.
Why doesn’t the engine turn the same RPM – or higher – with the Bleeds Off and produce less thrust – assuming some power is extracted to the Bleeds. Is the EGT the limiting factor?
In any case given the above 2 conditions – can we assume that the EGT is going to be higher in the Bleeds Off condition due to the higher N1.
I’ve probably mixed a bunch of apples and Oranges here – but I hope that someone can discern the question.
BTW – this is a “Thrust Bump” situation so it is not possible to go to Bleeds Off and a higher assumed temp and reduce EGT – there are no Reduced Thrust TO with a Bump.
Any information would be appreciated,
LK