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VHOJT

FlyPrecisely 747-400ER Profile

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Hi chaps,

 

Has anyone had more luck than me using the FlyPrecisely 747-400ER profile with the PMDG 747ER than me?  No matter what I do, it seems to have altitudes all over the place (stepping up and down irrationally - even with no optimisation set).  It also suggest 320 at all times for initial cruise altitude, even with MTOW - optimum is around FL300.  It also suggests holding fuel of 3400kg for 30 mins which seems minimal (@ gross weight of 241 tonnes).  I am really struggling to get this profile to work as nicely as the inbuilt 747 profiles, which are fine if you have a base bias figure and tweak around the ISA.  I have tried using  bias figures, but these vary wildly depending on the gross weight, and finding a happy medium is eluding me.  I am also using PFPX 1.28.8.

 

Can anyone offer me some advice on how to get accurate calculations with it?

 

Cheers,

Rudy

:)

 

 

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Hi Philippe, hope you're keeping well. You reminded me I have some more 400ER data now so I'll expand that profile shortly.

 

Cheers

Jon

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Thanks guys, I'll give it a go.  Look forward to the expanded version, Jon, and thanks for the hard work :)

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