Good idea, that way I won’t have to keep using Ferry Mode on the Caen / Portsmouth / Caen service. A full 9 hours in the cabin, yes please Brittany Ferries
most ships run at optimum cruising speed for fuel efficiency anyway do they not?
all they will do is take twice as long and pump out twice as much pollution.
grotty thunderbags will be pishing her knickers at that thought…
If you look at the service life of ships any change in pollution regs will condemn a huge percentage of them to the scrap yard .
So in reality it aint going to happen in a hurry .
Have a look at the coastal/ local traffic outside Europe and the vast majority of it will be ancient .
grumpyken52:
If you look at the service life of ships any change in pollution regs will condemn a huge percentage of them to the scrap yard .
So in reality it aint going to happen in a hurry .
Have a look at the coastal/ local traffic outside Europe and the vast majority of it will be ancient .
grumpyken52:
If you look at the service life of ships any change in pollution regs will condemn a huge percentage of them to the scrap yard .
So in reality it aint going to happen in a hurry .
Have a look at the coastal/ local traffic outside Europe and the vast majority of it will be ancient .
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Bonus, chop all the ships up, send them to Scunthorpe, melt them down and rebuild them with Chinese Steel
pierrot 14:
Good idea, that way I won’t have to keep using Ferry Mode on the Caen / Portsmouth / Caen service. A full 9 hours in the cabin, yes please Brittany Ferries
Nice thought. But.
Currently two ships running 3 trips each a day. To keep same service would need 3 shoeps running 2 trips each a day. Or reduce number of trips plus run a lop-sided timetable.
Possible, but can’t see it yet.
If I’ve read that ship and bunker article right it will make some of the sailors happy now they are allowing scrubbers on ships instead of just in the ports!
dieseldog999:
most ships run at optimum cruising speed for fuel efficiency anyway do they not?
all they will do is take twice as long and pump out twice as much pollution.
grotty thunderbags will be pishing her knickers at that thought…
In a word - “No”.
For details of the assumptions made, you’ll have to read the report on the study as linked in the BBC article. In essence though, fuel used (and thus, pollution generated) is in proportion to the cube of the speed - i.e. double the speed and the fuel burned (and resultant pollution) increases by about 8 times. Using their assumptions, a speed reduction of 10% would require 27% less fuel to maintain that speed. The time taken would of course be roughly 10% longer, so the theoretical reduction in fuel used (and pollution generated) is around 19%.
dieseldog999:
most ships run at optimum cruising speed for fuel efficiency anyway do they not?
all they will do is take twice as long and pump out twice as much pollution.
grotty thunderbags will be pishing her knickers at that thought…
In a word - “No”.
For details of the assumptions made, you’ll have to read the report on the study as linked in the BBC article. In essence though, fuel used (and thus, pollution generated) is in proportion to the cube of the speed - i.e. double the speed and the fuel burned (and resultant pollution) increases by about 8 times. Using their assumptions, a speed reduction of 10% would require 27% less fuel to maintain that speed. The time taken would of course be roughly 10% longer, so the theoretical reduction in fuel used (and pollution generated) is around 19%.
Wasnt ther a fuel crisis for ships a few years ago. They all reduced their speed to try and conserve fuel, and it worked. Cant understand why they upped them again afterwards? Maybe everyone was in a rush for their cheap Chinese that!
Sorry, can’t run the ship today, too windy, we’d use too much fuel
Sorry the ship is delayed, 5 knot current means we’re running 5 knots slower than normal - can’t increase speed due to pollution and fuel.
Will there be speeding tickets for ships running at the limit but with additional currents helping them along their way, thereby increasing their travelling speed ? Who would issue them under what jurisdiction in international waters?
We’re going backwards in the name of climate change
dieseldog999:
most ships run at optimum cruising speed for fuel efficiency anyway do they not?
all they will do is take twice as long and pump out twice as much pollution.
grotty thunderbags will be pishing her knickers at that thought…
No they don’t. My brother used to work for P&O tanker/bulk carriers. The cruising speed was often dictated by the market, so if the cargo value was high, they went flat out and best economical cruising if the market was poor. Sometimes they would spend days anchored off Gibraltar waiting for prices to improve.
Container ships have no such concerns; the more trips they make, the more profits they make, so they go as fast as they reasonably can.
There was talk years ago about using the wind again for ships. They could have a huge sail a bit like a traction kite to help pull them along. It wont replace the engine but reduce the amount of work that it has to do so reducing the amount of fuel used.
alamcculloch:
There was talk years ago about using the wind again for ships. They could have a huge sail a bit like a traction kite to help pull them along. It wont replace the engine but reduce the amount of work that it has to do so reducing the amount of fuel used.
They could have politicians blowing into the sails. They’d be faster than planes.
Could always put a magnet on the gearbox to hide the true speed
Could cause a problem with the compass of course.
‘Why is magnetic north always behind us?’
Nite Owl:
Wasnt ther a fuel crisis for ships a few years ago. They all reduced their speed to try and conserve fuel, and it worked. Cant understand why they upped them again afterwards? Maybe everyone was in a rush for their cheap Chinese that!
Yes, during the financial crash of 2008, to save the shipping companies money, obviously customers wanting stuff delivered quicker has pushed the speeds up again.
However what about aviation, would slowing planes down work the same way?
