EPRs on BA 747-400s

[Traffic]

Hi guys

Just wondering if it's only me but the EPRs for BA a/c seem to be a bit out. For example on finals landing at 250t, the rule of thumb is 1.15 EPR for F25, 1.20 EPR for F30; I always need at least 0.05 EPR more. Can anyone help?

Cheers

[Cbf]

Hi Traffic,
I must admit that I mostly fly with GEs.
Nevertheless I  also fly with RR and PW
With the RR and flaps 30, I set 1.21 EPR at 270T (+/- 0.01 per 10T variation).
Regards

[Hardy Heinlin]

Hi,

for flaps 30 at 250 tons I need 1.20 EPR, not 1.25.

If you save and upload a situ file that demonstrates the problem, we may help with an analysis ...


Regards,

|-|ardy

[Traffic]

Thanks Hardy. Wilco, shortly :-)

[Britjet]

Traffic - this was calibrated some time ago and I have always found it to be accurate at sea-level airfields.
You may get different results at altitude?
Peter