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Topic: Exhaust pipes?

Cambodge
First Class Passenger
Member # 906

posted 11-07-2003 11:25 AM

Before the QM2 postings here degenerated into a shouting match between Titanic and the rest of the board, there were questions about the "exhausts' noted on QM2.

Were they for the gas turbines or for some other purpose?

I have no answer, but it called to mind the "Diamond Princess" discussions, re spas and such [about which I could not care less!].

No one appears to have mentioned the giant tubular "exhaust ports" on the funnels.

I personally believe that they are high-bypass jet engines, which can be used in manouvering the ship in tight docking spaces, in the manner that aircraft, tethered to the decks of US Carriers, were used to move the ship sidewise in tight spaces during the Korean War. (See "Bridges of Toko -ri").

The former skipper of "Oriskinay" told me that it did not work! Of course, the "Boxer" class did not have lateral thrusters!

But there may be another purpose for these two, stack-mounted "things" on the two, MHI-built "Princess" ships.

OK, what is it then?

Posts: 2149 | From: St. Michaels MD USA , the town that fooled the British! | Registered: Nov 1999 | IP: Logged

gohaze
First Class Passenger
Member # 586

posted 11-07-2003 11:40 AM

Decoration. On the Coral/Island you can see right through them.

Posts: 1909 | From: Vancouver.BC | Registered: Sep 99 | IP: Logged

Waynaro
First Class Passenger
Member # 3484

posted 11-07-2003 11:47 AM

I know that RCI's Radiance-class ships and the QM2 have exhaust pipes sticking out of the stern. On the DIAMOND-class, its not there and I think same with CORAL and ISLAND PRINCESS? Does anyone know why?

Posts: 6108 | From: Vallejo,CA : California Maritime Academy!!! | Registered: Nov 2002 | IP: Logged

Captain Rhone
First Class Passenger
Member # 3498

posted 11-07-2003 11:48 AM

On the Coral/Island and this should go as well for Diamond/Sapphire, princess said that they are "cylinders"on the funnel and they only are there to draw attention to the ships funnel.So they have no purpose.

Posts: 686 | From: New York,USA | Registered: Nov 2002 | IP: Logged

Barryboat
First Class Passenger
Member # 33

posted 11-07-2003 12:22 PM

I'm going to take a guess that the exhaust pipes on QM2's aft section are not related to Her engines, rather they may be galley exhaust ports??? Or perhaps they are related to the ship's pods in someway for ventilation, or removing fumes from that area.

Posts: 1851 | From: Bloomington, Minnesota (Home to the Mall of America) | Registered: Mar 99 | IP: Logged

eroller
First Class Passenger
Member # 1649

posted 11-07-2003 12:38 PM

They only seem to be on ships with gas turbines, as I pointed out on another thread.

I've seen them on CORAL PRINCESS, RADIANCE OF THE SEAS, INFINITY, and now QM2. The one thing in common is that each of these ships has a gas turbine.

That is my guess.

Ernie

Posts: 7046 | From: Miami, Florida USA | Registered: Oct 2000 | IP: Logged

VDK
First Class Passenger
Member # 3460

posted 11-07-2003 05:55 PM

I would say that the exhuasts in question on the QM2 (at the stern) are for emergency generators. Gas Turbine uptakes for the typed fitted in QM2 (LM2500) are very large.

Posts: 325 | From: Victoria, BC, Canada | Registered: Nov 2002 | IP: Logged

Onno
First Class Passenger
Member # 3071

posted 11-07-2003 06:52 PM

For reference here is the picture Serenade I posted in the other thread where you can clearly see the pipe sticking out of her back.

Best, Onno

[ 11-07-2003: Message edited by: Onno ]

Posts: 3583 | From: the Netherlands (Berenbotje ging uit varen...) | Registered: May 2002 | IP: Logged

GregD
First Class Passenger
Member # 4176

posted 11-07-2003 06:55 PM

Here's the Serenade of the Seas in BostonSerenade OTS Stern

Posts: 548 | From: Texas | Registered: Sep 2003 | IP: Logged

gohaze
First Class Passenger
Member # 586

posted 11-07-2003 08:36 PM

They look rather like emergency generator exhausts. It would be a logical position for them.
....peter

Posts: 1909 | From: Vancouver.BC | Registered: Sep 99 | IP: Logged

Ryndam
First Class Passenger
Member # 1315

posted 11-08-2003 11:01 AM

I can confirm that the aft exhaust pipes on the Island and Coral Princess are the emergency diesel generator pipes. From the pictures I've seen on the net, also the RCCL pipes look like the EDG exhausts.

Ryndam

Posts: 260 | From: Genoa (Italy) | Registered: May 2000 | IP: Logged

sslewis
First Class Passenger
Member # 3649

posted 11-10-2003 10:44 AM

I have seen these strange exhaust pipes too at the back of Coral Princess sister.
It strucked me as I was visiting StNazaire, and it sems that a fire had just occured too.
You can see the picture in the photogallery, port section.
sslewis, who wish he knew how to post pictures!

Posts: 2513 | From: Shipspotting Solent shores when weather allows.... | Registered: Feb 2003 | IP: Logged

sslewis
First Class Passenger
Member # 3649

posted 11-10-2003 10:52 AM

So, can you see Island Princess exhausts on my picture in Industry/Photogallery No4/Busy StNazaire? They are barely visible at this angle, on either side of the port of registry(Hamilton), sticking a little from the open deck.
Sadly, I haven't dowloaded the view of the smoke marks on her starboard side yet.
I really thought the Princess Thunderbird-type funnels hid some aircraft turbines.
on a more practical side, they could have been vents like on the old Queen Mary!
ssLewis, flabergasted!

Posts: 2513 | From: Shipspotting Solent shores when weather allows.... | Registered: Feb 2003 | IP: Logged

gohaze
First Class Passenger
Member # 586

posted 11-10-2003 11:06 AM

SSlewis....Ryndam sailed on the Coral and confirmed what I thought - emergency diesel generator exhaust. Your smoke marks can be expected after firing up a new engine for the first time.

The gas turbine on the Coral/Island is in fact in the base of the funnel, a good position for air intake and exhaust without having to run a lot of space wasting trunking.

....peter

Posts: 1909 | From: Vancouver.BC | Registered: Sep 99 | IP: Logged

sslewis
First Class Passenger
Member # 3649

posted 11-11-2003 12:53 PM

Thank you peter!
When I drove near the docks in February, I thought I was going to witness another Lafayette in New-York. There was smoke everywhere, and I forgot my camera in the car in the panic.
Then things turned out normal, no firecars or else.
The activities on a shipyard are deafening! It seems something always happens there!
ssLewis

Posts: 2513 | From: Shipspotting Solent shores when weather allows.... | Registered: Feb 2003 | IP: Logged

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