This weeks joke

The raison why these locs are diesel electric is that an electric motor offers max torc at 0 rpm, hence you do not need to play with a mechanical clutch or torque converter to translate max torque rpm of the diesel engine to still standing wheels. You power an electric generator with your diesel engine at most suitable rpm and have max torque at the wheels from your electric motors from standstill on... exactly what you need when you want to start to roll tens of tons. Btw steam engines offer max torque at 0 as well..
 
The raison why these locs are diesel electric is that an electric motor offers max torc at 0 rpm, hence you do not need to play with a mechanical clutch or torque converter to translate max torque rpm of the diesel engine to still standing wheels. You power an electric generator with your diesel engine at most suitable rpm and have max torque at the wheels from your electric motors from standstill on... exactly what you need when you want to start to roll tens of tons. Btw steam engines offer max torque at 0 as well..
Ferries and the like used to use the Ward Leonard system where controlling the the field winding voltage could give quick and accurate speed control and forward and reverse instantly. Very useful when manovering into a berth.
 
Ferries and the like used to use the Ward Leonard system where controlling the the field winding voltage could give quick and accurate speed control and forward and reverse instantly. Very useful when manovering into a berth.
Somewhere I have a photo of an EV charging station in rural Oz, just behind it is the stonking great diesel generator that powers it. Does make sense, on one level …
 
As long as it has a battery it qualifies as green. At the start of the battery car bullshit here there was a competition rally for battery cars, huge media beat-up about what was possible with these fantastic things. The media beat-up and all reporting vanished when it was exposed that the winning car had been towed around every evening behind a big diesel 4wd to charge the battery. There are huge diesel generators under wharves here to charge battery powered ferries, and battery powered sight-seeing boats bunker 3 times a week in the busy summer months.
 
I keep hearing 'emission free vehicles' in Germany. Did I miss something, or does brake dust and rubber abrasion not exist in EV ?
After watching a documentary on TV about silicon mining in the Atacama desert and planned silicon mining in Spain for EV batteries, I don't see any EV being eco friendly....
 
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