Quote:
Originally Posted by Catfish
...
Seems a bit inefficient, slowing the boat even more. Maybe some translator problems back then, eh?
Or i am beginning to understand how Lucas Electrics came into being  |
mhh...
* diesel runs the propeller with 285revs
* reduced to 240revs when coupled to it's E-Engine as charger
* these lost 45revs are sufficent to give the other propeller 155revs (perpetual motion machine)
* also these 45->155revs keep the batteries charged and produce enough electricity for the other stuff on board
sounds pretty efficient
mhh...
ok, most of the 155-45 = 110 revs came from driving through the water which also produced some revs to the 'more passive' propeller... the more equal the propeller revolutions are, less rudder you need and rudder is nothing else than 'slowing the boat'.
mhh.. conclusion:
it's was more efficient to transfer power from one E-engine to the other E-engine (through batteries) even with electric losses than just to decouple one side completly to let that propeller run 'free' and compensate the difference of the resulting higher propeller-rpms-difference with rudder
