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lassekronborg

Derate calculator for 777-200LR available

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Not sure about how much you can derate your takeoffs? I made an excel calculator to help. With the release of PFPX I find no need to make a Dispatch sheet like the one I made for the NGX. But PFPX/TOPCAT can't do takeoff performce calculations at the moment. Until a profile for the 777 is ready, you can use this file to calculate what derate to use. Calculations are based on FCOMv1.

 

The file can be downloaded here:

 

http://library.avsim.net/esearch.php?CatID=fsxutil&DLID=179410

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Just found out that I detached the ambient pressure from the calculations. Its always using a setting of 1014hPa no matter what is entered. I'll upload a small fix later today. The differences are marginal. But still... We want it to be as realisticaly as possible, don't we :-)

 

Lasse Kronborg

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Hi Lasse, thanks for providing this tool to help us in the interim.  I am unable to open this in my version of excel, Excel 2003.  If it's not too much trouble, is there a way you can convert it to older versions?  

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Lasse,

If you allow it I would create the whole thing as an EXE file in VB. Is easier to use and not everyone has EXCEL.

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Lasse,

If you allow it I would create the whole thing as an EXE file in VB. Is easier to use and not everyone has EXCEL.

PM send.

Lasse,

If you allow it I would create the whole thing as an EXE file in VB. Is easier to use and not everyone has EXCEL.

PM send.

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Thank you !

 

May I ask why only flap 15 ?

 

Flaps 5 seems to be a normal takeoff config, judging from observations in various other forums.

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Thank you !

 

May I ask why only flap 15 ?

 

Flaps 5 seems to be a normal takeoff config, judging from observations in various other forums.

It is the only info available in the FCOM.If Im lucky Ill get my nose in the documentation for other flap settings.

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call me stupid, but I'm not completely sure how to use this spreadsheet. What is the end result? I had assumed it was a temp to put in the THRUST LIM page, but I appear to be wrong as that is a value to be entered. Some help for the naive please.

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Hi Lasse, thanks for providing this tool to help us in the interim.  I am unable to open this in my version of excel, Excel 2003.  If it's not too much trouble, is there a way you can convert it to older versions?  

 

If you have a Google account it seems to be working fine in GoogleDocs.

 

 

 

call me stupid, but I'm not completely sure how to use this spreadsheet. What is the end result?

 

Looks like it is a Go/No Go on the 3 derate choices - TO, TO1 and TO2?

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It is the only info available in the FCOM.If Im lucky Ill get my nose in the documentation for other flap settings.

 

edit: nevermind, I see it now.

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Hey @Lassekronborg you might find what you need here!

 

http://www.theairlinepilots.com/forum/viewforum.php?f=32

 

Great site! Thanks :-)

 

 

bearcaat12, on 11 Sept 2013 - 3:59 PM, said:

 

 

call me stupid, but I'm not completely sure how to use this spreadsheet. What is the end result?

 

 

 

Looks like it is a Go/No Go on the 3 derate choices - TO, TO1 and TO2?

 

 

True! That and the assumed temperature.

It is all about keeping the TOW lower or equal to the Field Limit Weight. You input the planned TOW and the max field limit weight is calculated based on all the other inputs: runway length, weather, elevation, assumed derate, TO derate, runway conditions and so on. Instructions are provided in the readme file.

 

Cheers

Lasse

Hi Lasse, thanks for providing this tool to help us in the interim.  I am unable to open this in my version of excel, Excel 2003.  If it's not too much trouble, is there a way you can convert it to older versions?  

 

Microsoft has provided this small program to make Excel 2007 files usable in earlier versions:

Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint File Formats

Link:

http://www.microsoft.com/en-us/download/details.aspx?id=3

 

Regards

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Dear Lasse,

 

Would you consider a "Dispatch Sheet" for the 777 like for the NGX? Your work for the 737NGX is remarkable and outstanding! It surpasses TOPCAT in many ways!

We would need your knowledge and work badly.

Looking forward to it.

 

Cheers from Hungary,

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Dear Lasse,

 

P.S: I can PM you an 777-200LR GE90-110B1L FPPM if you wish.

 

Cheers,

onduty

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Microsoft has provided this small program to make Excel 2007 files usable in earlier versions:

Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint File Formats

Link:

http://www.microsoft.com/en-us/download/details.aspx?id=3

 

Thanks for the link, I was now able to open the document.

 

I hope you and Skino can collaborate to continously improve this much needed resource.   This is a huge asset for those who don't own TOPCAT, and I remember in my PMDG 737NG FS2004 days how valuable freeware fuel calculators for the NG were.   You are providing a great service for the community.

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