Oil Tankers

[flano]

Do they have to turn off their engines a mile or two from prot so that they will slow down?
Also What mass is a typical oil tanker?
cheers

[Clanad]

No... in fact they can reverse the propellers to help slow them or maneuver more efficiently... As far as size, the oil tanker Jahre Viking was the largest ship afloat in 1999. She is 458 meters [1,503 feet long] long, with a beam of 69 meters [226 feet]. The hull extends 25 meters below the water-line. When it is fully loaded with crude oil, she has a gross tonnage of 565,000 tons. (Source Ships and Boats FAQ)

[brachiopod]

They certainly won't turn their engines off, as they are required to run essential rudder, fin and other control operations. They will, however commence slowing down several miles ahead.

The 'weight' of a ship is usually referred to in terms of displacement (the mass of water that the ship displaces - think of a giant container full to the brim. You plonk your floating vessel into this container and weigh the water that slops over the sides of the container.)

A typical supertanker has a load capacity of around 300 000 tonnes (around 2 million barrels) of oil.

The largest supertanker (and, indeed the largest vessel of any description), is the Jahre Viking which has a displacement of just under 650 000 tonnes when laden with nearly 4.1 million barrels of crude. Previously known as the Seawise Giant, she was sunk during the Iran-Iraq war, before being refloated, repaired and renamed.

By comparison, the Titanic had a displacement of 53 000 tonnes.

[brachiopod]

Cross post, clanad !!

[KebabMeister]

And to give an indication of just how big that is, Britain's largest Royal Navy ship is the HMS Ocean class displacing 22,500 tonnes (500 tonnes more than the Invincible class aircraft carrier).

[gastwo]

Good pictures of the Jahre Viking here:

http://supertankers.topcities.com/id23.htm

[gastwo]

Doesn't link for some reason. Sorry!

[gastwo]

Okay - lets try again

http://www.supertankers.topcities.com/id23.htm

[gastwo]

I give up! What am I doing wrong?

[SC00BY]

http://supertankers.topcities.com/id23.htm

Try this!

[flano]

you must take off the <p> at the end of the link

[gastwo]

Thanks for the answer, Flano, but I cant see a <p> ...

I e-mailed the link to Scooby (we work together) and she posted it (see above). Its the identical link in all respects, except Scoobys works and mine doesn't.Very odd... Any ideas?

[Hippy]

Scoobie's link does not have the "www" in it and works therefore is the correct URL. When you post URLs here on Answerbank it is a good idea to put a space at the end rather than just hit the return key, as the AnswerGremlins get to work and bust the link with a pesky extra hidden symbol in the link. Like this, first with just carriage return, second with a space.

http//www.bbc.co.uk

http://www.bbc.co.uk

Et voila!

[brachiopod]

If you get the "PAGE CANNOT BE FOUND" message after posting a link on AB, look at the address in the browser window displaying the error message - it will probably have  "</P>" or a " " (space) at the end, which will prevent the page from showing. Deleting these characters and pressing 'enter' or refresh should display the page.

Useful if you want to see a link a poster is referring to but they "can't get the click to work".

[gastwo]

Thanks for all the help with my link problem. Sorry it's getting away from your original Q, Flano!

[gerkin]

Is that port Entifer in Normandy in the background ?