first sea trials of electric C-Dory 22

Tom Hruby

I finally got all the wires hooked up correctly and was able to take our new C-Dory 22 cruiser for its first run. I was windy in Budd Inlet (15-20 mph) but we were still able to get good data on performance. At 5mph we were using 1600 watts, so at that speed I would have a range of about 45-50 miles with my 20kWh of batteries. Top speed was 6.8 mph at 5800 watts using the two E-propulsion Navy 3.0 motors I have. I have posted a picture looking out the back at 5.5 mph and a graph of our data in the album under my name.

thataway · Posted: Fri May 17, 2024 5:12 pm Post subject:

what was the difference in speed going into the wind, and down wind? Did you run in any chop? If so, how did that effect efficiency and speed/Range,

Thank you

Tom Hruby · Posted: Fri May 17, 2024 5:32 pm Post subject:

It was quite windy and the wind was "boxing" the compass from W to SSW and back, so I could not collect more detailed data. This often happens in Budd Inlet in Olympia WA because of the land.

The data I graphed was in a strong chop with the wind coming at the boat between 10 and 12 on a clock. I only had one data point for going downwind and that was in the lee of the west shore.

nwboater · Posted: Tue May 21, 2024 5:55 pm Post subject:

congrats! You are among the vanguard in the transition to electric propulsion.