Cruise Talk: Slanted funnels

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»	Cruise Talk » Ocean Liners and Classic Cruise Ships » Slanted funnels

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Topic: Slanted funnels

Landlocked Cruiser
First Class Passenger
Member # 4297

posted 01-14-2004 11:08 PM

Looking at Onno's graphic comparisons of QM2 with Mauretania and Queen Mary made me wonder, were the funnels on those classic liners slanted back for some functional reason, or just for looks?

Posts: 253 | From: Wichita | Registered: Dec 2003 | IP: Logged

Ðraikar
First Class Passenger
Member # 1153

posted 01-15-2004 01:52 AM

I believe the funnels were slanted in the older days for smoke to travel back just a bit more then a strait up funnel, keep in mind you see many single funnel ships with a strait up funnel but a 4-funnel or 2-funnel is different because they are longer ships (in old day's)...

Smoke is shot up and lowers from heat, shot up at an angle the ship is going with the wind helps trail the smoke farther (going with the wind or againts) at a degree smoke will be pushed farther by the wind from ship speed at low or high speeds...

New ships do not have to think about a funnel being slanted since ships produce less smoke and in some ships the smoke "pipes" are slanted in a strait funnel.. Or you could use some kind of wind guard like in QE2 that pushes smoke up by wind force at the base or like on SS France / SS Norway that has wings on the top of funnels glide the wind and smoke away but for that to work they must be cruising at a semi high speed...

I wander why QM2 has this ???

Posts: 1710 | From: USA, New York | Registered: Mar 2000 | IP: Logged

gohaze
First Class Passenger
Member # 586

posted 01-15-2004 08:55 AM

In the days of many funnels several were usually dummies. This was to impress the natives or steerage passengers with the power of the ship. By slanting them back it made the ship look as if it was going faster - plenty of black smoke helped too.

....peter

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

Baazzerboat
unregistered

posted 01-15-2004 10:35 AM

Purely asthetics...looks cool..there's not much functionality to a swept-back funnel. Now there was a reason why the funnels were so tall....try and reduce the amount of soot on deck. Those older liners were notorious for having black soot all over the decks and rails. That's why deck crews were always cleaning.

IP: Logged

gohaze
First Class Passenger
Member # 586

posted 01-15-2004 11:11 AM

Originally, boilers were 'natural draught" and tall funnels were needed to draw air into the furnaces to get enough heat for steam.

In the old days if you had a coal fire in the grate that was just smouldering you covered most of the front with a newspaper, thereby increasing the natural air flow, and the flames would soon be up the chimney.

....peter

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

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