Old 19th Aug 2015, 08:02
  #60 (permalink)  
yr right
 
Join Date: Apr 2007
Location: australia
Posts: 1,002
Originally Posted by rigpiggy View Post
yr right wrt your previous remarks the the torque drops due to reduced mass air flow to maintain torque you replace air mass with fuel mass, this increases itt's. flying in the north there are many times where we don't get above 92% n1, as such there is a passage in the KA manual that has MX reset the AFX PL column switches to allow it to work.
You flying -41 or -42. You increasing mass airflow by making the compressor work harder. Yes I've done a lot of work north.
By increasing more wf you increase itt and thus increase NG. And if your useing 3 blade props it's hard to reach max Tq before being temp limited even more so if you have -41.

You loste on your switches though. Amusing your talking about a b200
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