DreamFleet 727-200: New Runway Takeoff Length Data

[PhilipsCDRW]

This is a very helpful thread! Thanks for collecting and compiling this data, it is much appreciated, I'm printing it now and will add it to the appropiate manual section.

[Gregory]

>Gregory,
>
> In the example calculation, on your chart, from the "flap
>position" area the calc line continues on to the "average
>takeoff EPR area. It appears to stop at "2.125" EPR. What is
>"average takeoff EPR" and how was it come by, in the example?
>
> Thanks!

The example `calc line' was there already when the file arrived. I've cleaned up the chart, sharpened it, etc. for best clarity and moderate filesize. Someone has apparently plotted the trace up to EPR=2.125 which serves to demonstrate typical use. Not an expert here but `Ave EPR' probably means if you ran the takeoff five times.. that would be the likely value.

Keep in mind the chart is useful to optimize your takeoff by `trading off' one parameter for another. Use the Max TO EPR chart for takeoff EPR setting. Then see how it `plays' into the takeoff scenario. Best to ask someone who knows what they're talking about! :)

Have fun with your Boeing Sim.

-Gregory

[metro752]

Yes, I thought that maybe was a typo earlier, and he meant 14/14

Anywho, who measures the dewpoint in aviation in Farenheit.


University of Illinois Champaign Urbana
http://ww2010.atmos.uiuc.edu/(Gh)/guides/maps/sfcobs/dwp.rxml

"When the dew point temperature and air temperature are equal, the air is said to be saturated. Dew point temperature is NEVER GREATER than the air temperature. Therefore, if the air cools, moisture must be removed from the air and this is accomplished through condensation. This process results in the formation of tiny water droplets that can lead to the development of fog, frost, clouds, or even precipitation."

EDIT: To be a bit more accurate, you could have used LAT/LON coordinates to figure out exact distances.

http://www.fsuniverse.com/meyer/abov.../meyer_sig.jpg