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> the eWolf is equipped with two small generators for emergency use that allow the boat to travel longer distances at a reduced speed. So.. not all electric. I

by 1970-01-01 3y ago

> the eWolf is equipped with two small generators for emergency use that allow the boat to travel longer distances at a reduced speed. So.. not all electric. It's a hybrid diesel.

Cheer2171 3y ago
> for emergency use This is like putting a gas generator in the bed of an all-electric truck
- 1970-01-01 3y ago
  So the Ramcharger 1500, but in boat form. https://www.ramtrucks.com/revolution/ram-1500-ramcharger.html https://www.ramtrucks.com/revolution/ram-1500-ramcharger.htm...
grecy 3y ago
All ski chairlifts have a diesel backup drive motor for emergency evacuations. Have you ever seen one run on diesel? Would you call every chairlift in the world diesel powered? Emergency use is a different thing
- 1970-01-01 3y ago
  Emergency use case is not the same. The tug uses diesel for extended range tasks. The chairlift uses it during a power failure. "Generators for long transit 2 x 300 kW" "Fuel 9800 gal @95%" https://www.crowley.com/wp-content/uploads/sites/7/2022/07/22-THS-08240-eWolf-NoVendors.pdf https://www.crowley.com/wp-content/uploads/sites/7/2022/07/2...
  - pests 3y ago
    You are misquoting. It says the generators are for emergency use, allowing it to travel longer at slower speeds. No where does it say it uses it for extended range tasks. The way it reads to me is "in emergencies, the speed is reduced but range is increased" Not "we use it for everyday long range tasks"
    - 1970-01-01 3y ago
      It's not a misquote at all. It's a hybrid. If batteries are nearly flat, and there is an emergency, the tug will switch over to its diesel engine and power itself over to the emergency task.
      - pests 3y ago
        So it's used only for emergencies? I really don't know what we are debating at this point. Sounds like most of the time it's going to be fully electric.
- ilikehurdles 3y ago
  > Have you ever seen one run on diesel? Lots of times this year alone, however I agree with your broader point.
- 1970-01-01 3y ago
  Yes, some are hybrid: https://en.wikipedia.org/wiki/Chairlift#Secondary_and_auxiliary_movers https://en.wikipedia.org/wiki/Chairlift#Secondary_and_auxili...
2OEH8eoCRo0 3y ago
Why would it need anything for emergency use? Presumably there are other tugboats around.
- DiggyJohnson 3y ago
  I don't think that's a fair assumption at all. There's a world of difference between being able to propel yoursellf versus relying on another vehicle when the emergency may occur in rough seas or busy channels. Also the assisting tugboat would have to leave its station to assist to emergency boat. But no, in general tugs don't always operate with a buddy.

> the eWolf is equipped with two small generators for emergency use that allow the boat to travel longer distances at a reduced speed. So.. not all electric. It's a hybrid diesel.

Cheer2171 3y ago

> for emergency use This is like putting a gas generator in the bed of an all-electric truck

1970-01-01 3y ago
So the Ramcharger 1500, but in boat form. https://www.ramtrucks.com/revolution/ram-1500-ramcharger.html https://www.ramtrucks.com/revolution/ram-1500-ramcharger.htm...

grecy 3y ago

All ski chairlifts have a diesel backup drive motor for emergency evacuations. Have you ever seen one run on diesel? Would you call every chairlift in the world diesel powered? Emergency use is a different thing

1970-01-01 3y ago
Emergency use case is not the same. The tug uses diesel for extended range tasks. The chairlift uses it during a power failure. "Generators for long transit 2 x 300 kW" "Fuel 9800 gal @95%" https://www.crowley.com/wp-content/uploads/sites/7/2022/07/22-THS-08240-eWolf-NoVendors.pdf https://www.crowley.com/wp-content/uploads/sites/7/2022/07/2...
- pests 3y ago
  You are misquoting. It says the generators are for emergency use, allowing it to travel longer at slower speeds. No where does it say it uses it for extended range tasks. The way it reads to me is "in emergencies, the speed is reduced but range is increased" Not "we use it for everyday long range tasks"
  - 1970-01-01 3y ago
    It's not a misquote at all. It's a hybrid. If batteries are nearly flat, and there is an emergency, the tug will switch over to its diesel engine and power itself over to the emergency task.
    - pests 3y ago
      So it's used only for emergencies? I really don't know what we are debating at this point. Sounds like most of the time it's going to be fully electric.
ilikehurdles 3y ago
> Have you ever seen one run on diesel? Lots of times this year alone, however I agree with your broader point.
1970-01-01 3y ago
Yes, some are hybrid: https://en.wikipedia.org/wiki/Chairlift#Secondary_and_auxiliary_movers https://en.wikipedia.org/wiki/Chairlift#Secondary_and_auxili...

2OEH8eoCRo0 3y ago

Why would it need anything for emergency use? Presumably there are other tugboats around.

DiggyJohnson 3y ago
I don't think that's a fair assumption at all. There's a world of difference between being able to propel yoursellf versus relying on another vehicle when the emergency may occur in rough seas or busy channels. Also the assisting tugboat would have to leave its station to assist to emergency boat. But no, in general tugs don't always operate with a buddy.