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EPR

Featured Replies

Hi,I have down loaded the Tero 757. I bet this question has been asked many times but are there any downloads to enable an "EPR" display?RegardsSimmslot

In a word - 'No' :-)

Simmslot,It's a little more complicated than that I'm afraid... but in short, the answer is "no".Tero

PPL(A)

What's a Tero 757 ;):-psorry couldn't resist.Simmslot, you'll never see this in 767PIC me thinks...Cheers

WHy fly EPR when you can fly N1?

Correct me If Iam wrong, but was not PIC767 modeled with General Electric engines? I think GE uses N1, where Pratt and Whitney uses EPR? EPR is the relationship between the pressures between PT2 and PT7 in the engine , simply that is the pressures between inlet and exaust. I am at a loss how this can be modeled in CF9.

A few words on EPR.Usually pilots tend to use the N1 as their power indication even in P&W's when flying approaches for example, since it's a lot more sensitive and informative as a power indicator than the EPR. Of course EPR still is the primary power indicator in those engines, but it's not wrong to look at the N1 in those machines either :).EPR modelling in FS9 (the default one) is almost entirely useless, but there have been great efforts in simulating it. Mr. Ron Freimuth can tell more, if he desires so :).Tero

PPL(A)

Exactly."Having used both (and being currently condemned to EPR), I have to say that I think EPR is particularly silly. For example, on the approach, it will vary between about 1.00 and 1.07. When variation in the third significant figure / digit of a number covers a range from too little approach power to too much approach power (1.03-1.09), you have a poor means of measurement. This corresponds (on my old type) to a range of N1 between about 50% and 75%. I know which I think is the more useful measure!"Tero

PPL(A)

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