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Help Identifying Engines  
User currently offlineImiakhtar From , joined Dec 1969, posts, RR:
Posted (5 years 4 months 1 week 5 days 12 hours ago) and read 3186 times:

Hello folks.

A few years ago on a trip to London, I took a few pics of aircraft engines at various museums. For the life of me, I can not remember the engine models. Pics are below:

Big version: Width: 448 Height: 336 File size: 30kb


Big version: Width: 448 Height: 336 File size: 33kb


Big version: Width: 448 Height: 336 File size: 28kb


Any help in identifying them would be much appreciated.

Thanks

10 replies: All unread, jump to last
 
User currently offlineDavid L From United Kingdom, joined May 1999, 9524 posts, RR: 42
Reply 1, posted (5 years 4 months 1 week 5 days 9 hours ago) and read 3139 times:

The first one looks very RR Merlin-esque.

That is all.  Sad


User currently offlineEcuadorianMD11 From , joined Dec 1969, posts, RR:
Reply 2, posted (5 years 4 months 1 week 5 days 3 hours ago) and read 3089 times:

Is it possible to tell different jet engine brands apart from a distance? For instance: Pratt & Whitneys, Rolls Royce etc? Why would an airline go for a specific brand, is this just politics between companies (regular customers getting good prizes) or ar their specific characteristics for certain brands?
I'm thinking about consumption, performance at certain altitudes, maintenance costs etc etc.

Can airports that service jet engines (for instance AMS) service all brands?
One tool fits all?

Cheers,

Ecuadorian MD11.


User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 3, posted (5 years 4 months 1 week 4 days 21 hours ago) and read 3025 times:



Quoting EcuadorianMD11 (Reply 2):
Is it possible to tell different jet engine brands apart from a distance?

Sometimes. It depends on the distance, but nacelle shape (and knowing what aircraft it is) can be enough for certain engines/types.

Quoting EcuadorianMD11 (Reply 2):
Why would an airline go for a specific brand, is this just politics between companies (regular customers getting good prizes) or ar their specific characteristics for certain brands?

It's not just politics. No two engines have exactly the same charachteristics...they fall on different points of the trade studies so some are better for some missions and some are better for others. Past experience in customer support and reliability goes a long way. Availability of maintenance and spares may be a deciding factor. Power-by-the-hour contracts are also a big factor. The engine purchase decision is almost as complicated as the aircraft purchase decision.

Quoting EcuadorianMD11 (Reply 2):

Can airports that service jet engines (for instance AMS) service all brands?

For line maintenance, generally yes. For heavy maintenance, it varies wildly by airport. A repair shop needs specific approval for each engine type, so it's just going to depend on what approvals the local shop has, or how many different local shops you've got.

Quoting EcuadorianMD11 (Reply 2):
One tool fits all?

For really simple line maintenance, yes. For everything else, generally no.

Tom.


User currently offlineOly720man From United Kingdom, joined May 2004, 6759 posts, RR: 11
Reply 4, posted (5 years 4 months 1 week 2 days 16 hours ago) and read 2872 times:

The bottom photo shows the RB211 and Olympus 593 at the Science museum

http://www.scienceandsociety.co.uk/results.asp?image=10324137




wheat and dairy can screw up your brain
User currently offlineTEAtheB From United Kingdom, joined Aug 2005, 81 posts, RR: 0
Reply 5, posted (5 years 3 months 3 weeks 2 days 5 hours ago) and read 2498 times:



Quoting EcuadorianMD11 (Reply 2):
Is it possible to tell different jet engine brands apart from a distance? For instance: Pratt & Whitneys, Rolls Royce etc?

If the aircraft is on the ground, look at which way the fan rotates. For large civil turbofans... if the fan rotates clockwise, it's a Rolls-Royce. If it goes anti-clockwise, it's P&W or GE.

Quoting EcuadorianMD11 (Reply 2):
Why would an airline go for a specific brand, is this just politics between companies (regular customers getting good prizes) or ar their specific characteristics for certain brands?

What Tdscanuck said!


User currently offlineKELPkid From United States of America, joined Nov 2005, 6398 posts, RR: 3
Reply 6, posted (5 years 3 months 3 weeks 1 day 9 hours ago) and read 2405 times:



Quoting David L (Reply 1):
The first one looks very RR Merlin-esque.

That is all.

However, don't all Merlin variants (Packard license-built ones included) proudly proclaim "Rolls-Royce" on the valve covers  confused 

The second one looks like an aero V-12 as well, it's obviously not a Daimler DB-601, as that was an inverted Vee engine...maybe an Allison V-1710?

http://en.wikipedia.org/wiki/Allison_V-1710



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineDocLightning From United States of America, joined Nov 2005, 19805 posts, RR: 59
Reply 7, posted (5 years 3 months 3 weeks 1 day 4 hours ago) and read 2368 times:



Quoting Tdscanuck (Reply 3):

Sometimes. It depends on the distance, but nacelle shape (and knowing what aircraft it is) can be enough for certain engines/types.

An example: on the 744 the RR engines look like this:

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Click here for bigger photo!

Photo © Martin Aves


And GE and PW engines are externally identical and look like this:

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Photo © Jonathan Simmons



Now, I know that in the second image they are GE engines because that is a QF bird. All QF 744's are powered by RR engines (AFAIK) UNLESS they are 744ER's. The 744ER is only available with GE powerplants (an odd decision by Boeing, IMHO, because QF was the only customer for that type). So if I see a QF bird with PW/GE-style nacelles, then I know it's a GE engine.

On the other hand, I have trouble remembering which manufacturer other airlines use. I know UA and NW use PW's and that SQ uses GE's. But I don't know who TK, VS, or LH use.

So it is SOMETIMES possible to pin down the engine type, and sometimes you need additional information. On the 787, both GE and RR engines will be externally indistinguishable, AFAIK.


User currently onlineViscount724 From Switzerland, joined Oct 2006, 25459 posts, RR: 22
Reply 8, posted (5 years 3 months 3 weeks 1 day 3 hours ago) and read 2365 times:



Quoting DocLightning (Reply 7):
All QF 744's are powered by RR engines (AFAIK) UNLESS they are 744ER's.

Close but not quite correct. QF also has two standard 744s (non-ER) acquired used from Asiana and Malaysian. They have GE engines. Those aircraft below. The ex-OZ aircraft is now in the oneworld livery..


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Photo © Michael Carter
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Photo © Werner Horvath



User currently offlineKELPkid From United States of America, joined Nov 2005, 6398 posts, RR: 3
Reply 9, posted (5 years 3 months 3 weeks 1 day 2 hours ago) and read 2357 times:



Quoting DocLightning (Reply 7):
I know UA and NW use PW's and that SQ uses GE's.

And if Lightsaber were around in this discussion, he would slap you silly for saying that  Smile SQ is a Pratt customer on the 744...  Wink



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineVirginFlyer From New Zealand, joined Sep 2000, 4575 posts, RR: 41
Reply 10, posted (5 years 3 months 2 weeks 6 days 21 hours ago) and read 2267 times:



Quoting DocLightning (Reply 7):
And GE and PW engines are externally identical and look like this:

If you look carefully, there are some differences between the GE and PW engines. On the PW, aft of the cowl the engine body is less tapered, then becomes more tapered, while on the GE the taper is pretty much constant. I also *believe* (but stand to be corrected) that on the GE, there is some form of vent on the right hand side of the engine, while on the PW there is a similar vent but on the left. If you look at these pictures you'll see what I mean:

PW:

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Photo © Phil Broad
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Photo © Tim de Groot - AirTeamImages



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Photo © Tim Perkins
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Photo © Simon Wong



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Photo © Satoshi Yamagishi
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Photo © Yuxiaobin



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Photo © K.H. Ng - HKAEC
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Photo © Sam Chui



GE

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Photo © Daniel Alaerts - AirTeamImages
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Photo © Planecatcher



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Photo © Kiskockas - SkyArts Aviation Photography
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Photo © Bjoern Schmitt - world-of-aviation



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Photo © K.H. Ng - HKAEC
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Photo © Emmanuel Perez - LUX Plane Pictures



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Photo © Ian Knight
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Photo © Ander Aguirre - AirTeamImages



Quoting Viscount724 (Reply 8):
Close but not quite correct. QF also has two standard 744s (non-ER) acquired used from Asiana and Malaysian. They have GE engines. Those aircraft below. The ex-OZ aircraft is now in the oneworld livery..

Actually there are 3 GE-powered 747-400s in the Qantas fleet. In addition to VH-OEB and -OED which you have shown, there is also -OEC.

-OEB, ex-Asiana

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Photo © Ted Quackenbush
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Photo © Thomas Loh Y. H.



-OEC, ex-Malaysia

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Photo © Frank Schaefer
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Photo © Jan Jorgensen



-OED, ex-Malaysia

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Photo © Michael F. McLaughlin
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Photo © Haik Nguyen



Quoting DocLightning (Reply 7):
SQ uses GE's

I'm pretty sure you'll find SQ uses PW: http://www.singaporeair.com/saa/en_UK/content/exp/fleet/fleet.jsp


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Photo © Gordon Gebert JR
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Photo © Andrew Hunt - AirTeamImages



V/F



"So powerful is the light of unity that it can illuminate the whole earth." - Bahá'u'lláh
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