I've been looking for an easy to understand (if there is such a thing) tutorial for reading performance charts.  I'm trying to calculate the minimum t/o runway length for a particular airfield, so I pulled up the 772 charts and after looking at all the lines going in every direction, I have a headache.  Anyway if anyone knows of a site or source that would help me make sense of these charts i would appreciate it. Thanks!!!

 

Richard

 

 

Hi Richard,

 

If you are speaking about real 777 performance charts/FPPM document I have bad news for you: the secrets and details of this book is taught in dedicated performance courses and primarily for engineers. Pilots mostly use EFB, dedicated laptops or pre-calculated performance figures for routine operations.

But if you take some time and study theses graphs and the text a bit, they become clear (but not esasy) at the end  so you can  interpret and use them.

 

Cheers,

 

Tamas

Hi Tamas,

 

Thanks for the answer, I was afraid that was what the answer was going to be.  I'll keep looking at the graphs and see if I can make sense of what they are trying to tell me.  I know there are programs like TopCat out there that calculate t/o performance figures, but since 95% of my flights are from "regular" length runways i don't wan to spend the money on a tool I will only use occasionally. 

 

Richard Bansa