Saturday, August 1, 2009

Re: [Electric Boats] Abusive and dangerous Re-Epower technical specification

 

Myles Twete wrote:
>> The Queen Mary runs on electrics...
>>
>
>
>
> Queen Mary 2 is propelled by electric motors, but its electric energy is
> created by 4 diesel engines (67Mw total) and 2 gas turbines (50Mw total).
>
> Queen Mary 1 was steam powered.
>
>
>
> QM2 is a great example to point out to skeptics who think that it would make
> no sense to have a larger boat propelled by electric motors if you'd need a
> genset to create the electricity.
>
Electricity is a common 'transmission' for large haul applications. Not
just large ships. The world is covered with 1000s of 'diesel electric'
railway locomotives - from approx 1000hp up. There has to be a reason
why electricity is the favoured transmission for every thing from large
ships, railway locomotives to mining draglines and haul trucks.

My non sailing boat is small enough and slow enough that the primary
energy source can be storage batteries. (Which hasn't been used for
months now, Winter here, and the motor/controler is inside my house, not
on the boat - only the batteries and the charger are still on board,
top-up charging at this very moment (If the charger hasn't shut off
already).

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