EPR

[Guest SIMMSLOT]

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

[Guest Muppet22]

In a word - 'No' :-)

[teropa]

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

[Guest Lenny Zaman]

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

[Guest captbulldog 2]

WHy fly EPR when you can fly N1?

[Guest B1900 Mech]

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.

[teropa]

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

[Guest B1900 Mech]

http://www.pprune.org/forums/showthread.php?threadid=136824

[teropa]

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