Re: 777 engine RPM

Date:         16 Sep 97 02:37:12 
From:         Iain Stuart <>
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In article <airliners.1997.2146@ohare.Chicago.COM>, Karl Swartz
<kls@ohare.Chicago.COM> writes
>>Anyone have knowledge of the approx rotational speed of 777 engines
>>(inner core and fans) at take-off and cruise?  I'll split the beer I
>>win if the fans do <30,000 rpm.
(Snipped discussion of Fan speeds)

Ah, but what of the core ?      I believe that the HP system of the
(three-shaft) Trent 800 operates at around 10,500 rpm.  Still well short
of the 30,000 rpm, so I'll have a pint.

Iain Stuart