How deep are the new carriers?
Discussion
http://www.bbc.co.uk/news/uk-england-hampshire-373...
beeb said:
Dredging work is being carried out in Portsmouth harbour to allow the the navy's new 65,000-tonne aircraft carriers to dock.
Three million cubic metres of sea bed is being removed to deepen and widen a 4 mile (7km) channel.
HMS Queen Elizabeth is due to be handed over to the MoD in 2016 ahead of being put into service in 2020.
Three million cubic metres of sea bed is being removed to deepen and widen a 4 mile (7km) channel.
HMS Queen Elizabeth is due to be handed over to the MoD in 2016 ahead of being put into service in 2020.
http://www.armedforces.co.uk/navy/listings/l0012.h...
"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
paintman said:
http://www.armedforces.co.uk/navy/listings/l0012.h...
"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
Is 11 metres excessive?"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
Are there many other ports they'll need to dredge to let them in?
saaby93 said:
paintman said:
http://www.armedforces.co.uk/navy/listings/l0012.h...
"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
Is 11 metres excessive?"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
Are there many other ports they'll need to dredge to let them in?
Remember that in our cuddly, environmentally friendly world over the last 20 years dredgers have been banned by the EA from our shores.
The sediment hasn't stopped forming/moving (and as the predicted sea level rise doesn't seem to have happened yet) dredging will be needed in most harbours in the near future.
AFAIK the two carriers under construction are the largest we have ever deployed so it stands to reason that they might need greater draft than previous craft especially the last range of mini carriers.
The sediment hasn't stopped forming/moving (and as the predicted sea level rise doesn't seem to have happened yet) dredging will be needed in most harbours in the near future.
AFAIK the two carriers under construction are the largest we have ever deployed so it stands to reason that they might need greater draft than previous craft especially the last range of mini carriers.
paintman said:
http://www.armedforces.co.uk/navy/listings/l0012.h...
"Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
The CVF will weigh considerably more than QE2 as the military weigh ships by stating how much volume of water that displace."Each ship will be similar size and weight as the ocean liner the QE2, The CVF dimensions are: 65,000 tonnes at full displacement; 284m (931ft) length x 73m (239ft) width at flightdeck level; 56m from keel to masthead – 6m taller than Nelson's Column; 11m max draft (keel to waterline); 9 decks deep + Flight Deck; 40 aircraft."
Civilians do an arcane calculation of the volume of the various parts of the ship and then give it a name that sounds like a measure of weight.
QE2 actually displaces around 49,000 tonnes, less than the Titanic.
Freight vessels can be even more annoying as oil tankers just quote the weight of the cargo. The heaviest oil tankers were, 560,000 tonnes of oil and 80,000 tonnes of steel, hence actually not that much more steel than the CVF.
Edited by Talksteer on Monday 12th September 20:42
Slightly off topic, dhy do they 'weigh' the civilian ships and boats by the volume. My father has got an old Fairline Corniche 31 and it has got a plaque in the cockpit than says '10 3/4 tons', but it only displaces about 6. Is it an old hang on from the old days when ships carried barrels and bags? Or is it more a old taxation/license type thing.
gazzarose said:
Slightly off topic, dhy do they 'weigh' the civilian ships and boats by the volume. My father has got an old Fairline Corniche 31 and it has got a plaque in the cockpit than says '10 3/4 tons', but it only displaces about 6. Is it an old hang on from the old days when ships carried barrels and bags? Or is it more a old taxation/license type thing.
Port fees are calculated by tonnage, as a measure of volume it probably correlates with the actual space the vessel will take up better than displacement.Storer said:
Displacement and total weight are two different things entirely AFAIK.
If you know the water temperature and chemistry you can calculate one from the other. Either way both relate to each other more accurately than tonnage does to anything because it is a dimensionless numberStorer said:
Displacement and total weight are two different things entirely AFAIK.
A certain Greek mathematician would disagree with you, as long as the ship is floating 
https://en.wikipedia.org/wiki/Archimedes%27_princi...
As stated earlier neither are related to tonnage, which is calculated primarily on cargo or passenger volume
https://en.wikipedia.org/wiki/Tonnage
Gassing Station | Boats, Planes & Trains | Top of Page | What's New | My Stuff