B767-200ER engine & performance

Wikipedia is not a reliable source of information when it comes to updating data here at AE. So we would apriciate if you could find another source.

As Delta-Northwest mentions Wikipedia isn't a very reliable source of information. It's best to find more reliable information at the manufacturers website (and even then sometimes there are some typos there) or looking at the aircraft type certificate.

Here's some info for the 767-200ER:

http://www.boeing.co...pf_200prod.html

http://www.boeing.co...s/acaps/767.pdf

http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/5daa5c6eadbc4d9f8625791900678371/$FILE/A1NM%20Rev%2031.pdf

or you could go here for engine specs from both Pratt and Whitney & GE Aviation Engine Division...

http://www.pw.utc.co...l/pw4000-94.asp

http://www.geaviatio...6/cf6-80c2.html

Aloha!

Guys, the Wikipedia article uses data drawn from 180+ sources; including Boeing's very own airport planning guide for the 762/ER...

The stated take-off distance is grossly oversimplified for use in an overview table though, I give you that.
However, AE stays fairly simplistic, too.


CF6-80C2B2 - 52500 lb
CF6-80C2B4 - 57900 lb
PW4052 - 50200 lb
PW4056 - 56750 lb
(RB211-524G - 58000 lb)

Take-off distance for C2B2, 4052 at TOW 340k lb, SL, standard day, flaps 20: ~7000 ft

TOD for 4056, C2B4, 524G, TOW 340k lb, SL, standard day, flaps 20: ~6250 ft

[Source: 767 AP planning]


I could try to model each engine in NASA's EngineSim to obtain fuel flow values or does AE use a simpler way?

SFC:

CF6-80C2B2 - 16117 lbs/hr
CF6-80C2B4 - 19107 lbs/hr
PW4052 - 15662 lbs/hr
PW4056 - 18160 lbs/hr
(RB211-524G - ???)

http://books.google....epage&q&f=false
http://www.jet-engin.../civtfspec.html

AE's fuel flow is engines x SFC x Thrust.
Which, for the record, is completely wrong

AE's fuel flow is engines x SFC x Thrust.Which, for the record, is completely wrong

Well, I guess we could fill a whole thread with the oddities and simplifications in AE, but the question remains: Is the data usable?

I would like to see a fuel flow model that is better implemented, but that is outside my control for now. I just try to input accurate data so that no changes will need to be made if and when a better model is drawn up.

Also, for the record, regarding wiki: I tend to check it as a starter, but I have noted numerous occasions where there are differences between the listed source and the wiki (usually subsitituting knots for mph or metres for feet etc). Its important to check the sources.

Please find your new 767-200ERs with shiny PW engines!

Thank you!