drinkstrolley
Posts: 484
Joined: Tue May 10, 2005 10:50 pm

Ryanair 737-200

Wed May 11, 2005 2:47 am

Having watched a couple of Ryanair movements recently at my local airport, Bournemouth (BOH), I can't help but notice that the 737-200 which is still used by the airline for their route to Dublin smokes like a chimney when either on approach of departing, yet the 737-200 (of a similar age of 20/25 years) operated by Palmair European (European Air Charter) doesn't.

What's this all about, is the Ryanair in need of an oil change?  Wink


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geoffm
Posts: 2082
Joined: Fri Feb 27, 2004 5:58 am

RE: Ryanair 737-200

Wed May 11, 2005 4:03 am

Different engines? Don't know. But I flew on a couple BRS<->DUB last month, and they were pretty old and decrepit! Half the no-smoking signs actually said "nicht reisen" (or something like that), so I'm guessing they were ex-German-owned planes which they hadn't bothered to update. No complaints with Ryanair per se, as you get what you pay for!

Geoff M.
 
drinkstrolley
Posts: 484
Joined: Tue May 10, 2005 10:50 pm

RE: Ryanair 737-200

Wed May 11, 2005 6:22 am

Quoting Geoffm (Reply 1):
ex-German-owned

Ex-Transavia I think, not sure...........
 
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HAWK21M
Posts: 29867
Joined: Fri Jan 05, 2001 10:05 pm

RE: Ryanair 737-200

Wed May 11, 2005 5:26 pm

Maybe theres an Oil leak from the bearing areas,#6 is normally suseptable.
Also inproper fuel burn [Combustion chamber problem].
What was the smoke colour,Black or white  Smile
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
Mender
Posts: 248
Joined: Wed Feb 04, 2004 9:36 am

RE: Ryanair 737-200

Wed May 11, 2005 9:40 pm

Couple of points.

1 The JT8D engines usually smokes compared to a newer, more modern engine. I am more concerned that the Plamair aircraft doesn't smoke ;0)

I'm sure you are seeing unburnt fuel smoke rather than oil smoke. It's probably more to do with fuel/air ratios, the difference between a new fuel control unit and an old unit (carburetor in simple terms) and the effectiveness of the fuel spray nozzles than anything else. Maybe the mod state of the fuel control or combustion cans are different between the two operators.

2 In my experience, You don't change the oil on a turbine engine - ever. It is normal for the engines to consume oil thus you just top it up between flights thus it never gets too old before it is burnt/consumed. Sort of a constant cycle. Think of it this way, your car shouldn't normally burn oil between services, therefore it gets old and needs changing. Because of the heat in a turbine engine you cannot use an normal rubber lip seal to seal the bearing cavities, so they use labyrinth seals which "leak" a small amount of oil throughout the flight. So it needs topping up every flight or two and thats why you don't need to change the oil every 12,000 miles.
 
Glom
Posts: 2051
Joined: Sat Apr 23, 2005 2:38 am

RE: Ryanair 737-200

Wed May 11, 2005 9:45 pm

That's low bypass turbofans for ya. Another reason why we now use high bypass turbofans.
 
drinkstrolley
Posts: 484
Joined: Tue May 10, 2005 10:50 pm

RE: Ryanair 737-200

Thu May 12, 2005 1:43 am

Quoting Mender (Reply 4):
You don't change the oil on a turbine engine - ever.

Sorry, figure of speech. My first car was a 1978 Capri and it smoked like anything when the oil was dirty!!!!
 
Mender
Posts: 248
Joined: Wed Feb 04, 2004 9:36 am

RE: Ryanair 737-200

Thu May 12, 2005 3:32 am

No need to say sorry mate, I was trying to give a clear reply not a "you should have known that" sort of reply.

Sorry to hear you once owned a Capri though ;0)
 
drinkstrolley
Posts: 484
Joined: Tue May 10, 2005 10:50 pm

RE: Ryanair 737-200

Thu May 12, 2005 4:56 pm

Quoting Mender (Reply 7):
Sorry to hear you once owned a Capri though

Quality 'motor' that one "my son", arm hanging out the window, radio full blast etc etc.......!!!!

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