It looks like my guesses weren't too far off...
"If we assume 10kW of charging, they could be using as much as 45kWh on a single charge..." Their published number is 40kWh (from your other post).
"...the twin motors are pulling about 40kW..." Their published continuous rating is 37kW. They probably launch at 80kW and cruise the rest of the 1 minute run at continuous.
Not too bad considering how little data that they include in the regular marketing info.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "qc_ca_666" <qc_ca_666@...> wrote:
>
>
>
> Hello again Eric,
>
> The motor itself is the "TM4 MOTIVE".
>
> http://www.tm4.com/electric_powertrain.aspx
>
> TM4 MOTIVE System Performance:
>
> Torque (Peak): 170 Nm
> Torque (Continuous): 65 Nm
> Power (Peak): 80 kWm
> Power (Continuous): 37 kWm
> Operating Voltage: 220-400 V
> Minimum Operating Voltage: 180 V
> Cooling: Water/glycol 55°C
>
> "Peak" is defined as 10 seconds, 25°C, 400 Vdc.
>
> Additional info from the PDF:
>
> http://www.tm4.com/AxisDocument.aspx?id=84&langue=en&download=true&document=Motive_Spec_Sheet_2010.pdf
>
> Max / operational speed: 12 000 rpm / 10 000 rpm
> Efficiency at nominal operation: 93%
> Communication: CAN 2.0B
> System protection: IP 6K9K
> Max coolant temperature: 55 deg Celcius
> Coolant type: 40/60 water-glycol
> External corrosion resistance: salt spray, gravel bombardment, chemical product
>
> All yours,
>
> Pierre
>
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