Re: A330/340 vs. B777

Date:         01 Jan 97 20:59:23 
From:         kls@ohare.Chicago.COM (Karl Swartz)
Organization: Chicago Software Works, Menlo Park, California
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>>The 767-300(ER) nominally uses a 60k (lbs thrust) engine, not 62k.
>>Still, it's not as large an increase as you'd expect.

>Hmm...ours (Qantas) use a 61,500 lb engine.  So what is that? 60k or 62k :-)

For newer engines, I generally use the Pratt and Whitney values
because you can easily identify them from the model number -- a PW4x60
nominally is a 60k lbs thrust engine, while a PW4x62 is a 62k engine.
In a given application, the thrust ratings of the engines from each of
the three manufacturers is different, so you can't readily compare
them.  A quick glance suggests PW ratings are lower than the others
for the same application, so I'd say the 61.5k GE CF6-80s on your
Qantas planes most closely approximates the 60k PWs.

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Karl Swartz	|Home	kls@chicago.com
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