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Old 11th October 2008, 22:27   #1 (permalink)
CONCOMBRE
 
Join Date: Jun 2006
Location: in a cave, grrrr!
Posts: 56
777 Engines
Hi everybody!

??? Does anyone know the average 777 fan rotation speed in rpm ????

Either, PW 4090 or/& GE 90 GE 115 (LP stage, N1=100%),
I'm not sure about my knowledge

Many thanks in advance for answers, bst rgds....

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Old 12th October 2008, 02:18   #2 (permalink)
BigJoeRice
 
Join Date: Apr 2008
Location: Minneapolis Mn USA
Posts: 57
PW4070 Series Max N1 103.1% = 2,990 RPM
PW4090 Series Max N1 105.0% = 3,045 RPM
PW Both Series Max N2 100.5% = 10,850 RPM

Reference B777 MM 71-00-00 Pg 224.

Hope this helps

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Old 12th October 2008, 11:37   #3 (permalink)
CONCOMBRE
 
Join Date: Jun 2006
Location: in a cave, grrrr!
Posts: 56
Many many thanks for your efficient answer.
(Unfortunately, I have no longer this acft documentation, with me .)

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