paul salliss
Well-Known Member
JRudge nailed it perfectly.Agree on all counts ��
JRudge nailed it perfectly.Agree on all counts ��
JRudge nailed it perfectly.
I d wonder how long it is before we see a really viable large electric motoryacht. I know greenline do hybrids but as has been shown in cars hybrids don't really work.
The work Tesla are doing on batteries means useful 300-400KWh battery banks will soon weight no more than a couple of 12cylinder diesels and take up about the same amount of space. Electric motors produce 100% torque from the get go so actually quite suited to the application
No you're probably right but you could say exactly the same thing about the specialist construction machines that my company supplies but we still get caught by the emissions standards regulations in the UK. The argument will be that whilst applying emissions standards to individual industries on their own makes hardly any difference, if they are applied to a whole bunch of individual industries, then that does make a differenceIf they scrapped all motor yachts tonight I wouldn't have thought that the CO2 savings would be noticeable on a global scale. .
The work Tesla are doing on batteries means useful 300-400KWh battery banks will soon weight no more than a couple of 12cylinder diesels and take up about the same amount of space. Electric motors produce 100% torque from the get go so actually quite suited to the application
I d wonder how long it is before we see a really viable large electric motoryacht. I know greenline do hybrids but as has been shown in cars hybrids don't really work.
The work Tesla are doing on batteries means useful 300-400KWh battery banks will soon weight no more than a couple of 12cylinder diesels and take up about the same amount of space. Electric motors produce 100% torque from the get go so actually quite suited to the application
Agreed. Not only that but regenerative braking is a major part of the car hybrid system and of course that doesn't exist with a boat. And as jfm has pointed out there will have to be a step change in battery storage density before the whole system makes any sense anywayHybrid does work quite well in cars because the load on a car engine tends to fluctuate quite frequently in normal use and the presence of the hybrid systems help to even it out and allow the engine to run close to peak efficiency most of the time.
I think when we go into Co2 nos and motor boating its a nill ie. non existent.
The NOx requirements in particular are a challenge. Many engines for RCD-II and EPA Tier IV will require adblue and currently the regulations require that in the event of a lack of adblue, that the engine will not start.
Given most boat engines are essentially lorry engines engines do the maths.
Our CAT C12 lumps do 100-200 hours a year. Double that because there a 2. I guess a lorry does 2,500-3,000 hours per year and there are thousands of trucks for every boat.
Ultimately it's the trucks which cause the pollution and which drive emission controls. I remember those stinky old 63P lumps when they fired up. The current engines and the D6 which preceded them don't give a puff when fired up.
If we had to run particulate filters and pop in some adblue would it really make that much difference?
Henry![]()