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Engine Indentification?

Thu May 18, 2000 10:01 am

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
 
DL_Mech
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Joined: Fri Feb 18, 2000 7:48 am

RE: Engine Indentification?

Fri May 19, 2000 10:39 pm

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.
 
DL_Mech
Posts: 2061
Joined: Fri Feb 18, 2000 7:48 am

RE: A GE90

Sat May 20, 2000 7:46 am

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.
 
DL_Mech
Posts: 2061
Joined: Fri Feb 18, 2000 7:48 am

RE: 777 Engine Spinners

Sat May 20, 2000 8:18 am

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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