Flight prep - it's all about the numbers

Hi Captains !

That's a fact we already have a fligh manager with the maddog. It works pretty fine and I like it a lot.

However I like to understand myself the aircraft. I mean, before I blindly trust any automated calculator. Therefore instead of jumping into the plane, I studied documentation.

This is the way I first get a big picture and learn a new aircraft limitations. At first sight performance chapter lacks a convenient "trip fuel and time table" in the available documentation from Leonardo as well as from Boeing, in contrast with other flight manuals for other types. To my taste I missed EPR values and more runways limitation tables. But I made my way and I am now proud to present you my OFP (and flight prep flow) to try & share !

So far I produce my OFP (usually I print a PDF from the OFP which is in the preparation spreadsheet) and then, I can also print the load sheet on top of the OFP paper.

I use some of the data from the OFP to populate the MadDog manager, for instance I can populate directly the block fuel from my own calculation and then only use the planner for the repartition of weight to get the CG, and so on... But it shows to be pretty close usually as the maths used to produce the OFP in a spreadsheet are accurately calibrated on the Leonardo Performance chapter and booklets.

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If you are interested you can try it yourself.

The produced OFP in pdf

The source speadsheet for OFP, which you can amend with your values

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The easiest way to try it yourself is to generate it dynamically with one of the flight plans here at http://gf3.myriapyle.net/aero/transatvia_plans.php in advanced mode then OFP download section in the page of results.

All the best captains !