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Engine Indentification?  
User currently offlineSbbre44 From , joined Dec 1969, posts, RR:
Posted (14 years 6 months 1 week 4 days 7 hours ago) and read 996 times:

RR engines on an aircraft are easy to spot, but how do you tell P&W and GE/SNEMCA engines apart?
Thanks in advance.

Arshad

3 replies: All unread, jump to last
 
User currently offlineDL_Mech From United States of America, joined Feb 2000, 1977 posts, RR: 9
Reply 1, posted (14 years 6 months 1 week 2 days 18 hours ago) and read 751 times:

On the B747-400/767, look for the precooler air outlet on the silver (aft) part of the cowling. It is square, darker gray in color and has three fins on it. If it is a Pratt, it is on the left side. Remember "P" Pratt=Pilots side. GE outlets are on the right side.
A Pratt

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Photo © Alexander Jonsson


A GE

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Photo © Carlos Borda



On the B777, I look for the engine inlet anti-ice outlet on the GE90. It is a round outlet on a square, unpainted section of the lower left nosecowl.



This plane is built to withstand anything... except a bad pilot.
User currently offlineDL_Mech From United States of America, joined Feb 2000, 1977 posts, RR: 9
Reply 2, posted (14 years 6 months 1 week 2 days 9 hours ago) and read 737 times:

Oops-I made a mistake. The GE90 outlet is not on the lower part of the engine.
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Photo © DIAspotter

The GE on the 777 is larger than the PW/RR engines, and I can only tell the PW from the RR by looking at the spinner.



This plane is built to withstand anything... except a bad pilot.
User currently offlineDL_Mech From United States of America, joined Feb 2000, 1977 posts, RR: 9
Reply 3, posted (14 years 6 months 1 week 2 days 8 hours ago) and read 733 times:

Some more 777 engine photos:Rolls Royce
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Photo © Ryan Gaddis

Pratt&Whitney
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Photo © Søren Geertsen

General Electric
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Photo © Søren Geertsen


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Photo © Jeff Duffield




This plane is built to withstand anything... except a bad pilot.
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