Solar powered Amp Eater

About powering boats with electricity

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vupilot
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Re: Solar powered Amp Eater

Post by vupilot »

My family lives in the area but I first heard about it from that other big homebuilt boat company out that way.

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CaptDave
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Re: Solar powered Amp Eater

Post by CaptDave »

Ran 24.5 miles on Memorial Day Avg 4.6 mph.
Battery was down pretty low - probably about 10%
It was a good day, a little choppy though. The wind was blowing pretty hard enough for white caps.
Probably a good test day for being in the Chesapeake bay.
The boys enjoyed the spray. See video clip on you tube.
https://youtu.be/Mlt7V1FPs-g

Update - Final No Load Voltage was 23.5 V. which translates to 28% charge remaining
Last edited by CaptDave on Wed Sep 09, 2020 8:07 am, edited 2 times in total.
Capt. Dave
Builder of the Amp Eater Aquatron

Hercdrvr
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Re: Solar powered Amp Eater

Post by Hercdrvr »

They loved the chop. 24 miles is impressive.
Matt B

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vupilot
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Re: Solar powered Amp Eater

Post by vupilot »

Fun!
24 miles, isnt that the same distance as the Wye Electric Boat Marathon? So youre good to go!

JimmY
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Re: Solar powered Amp Eater

Post by JimmY »

Awesome crew! :D
-Jim
Nothing says poor craftsmanship like wrinkles in your duct tape!

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CaptDave
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Re: Solar powered Amp Eater

Post by CaptDave »

Aquatron completed the Wye Island Electric Boat Marathon Friday Oct 2 with 3 passengers aboard. Official time was 5 hours 15 minutes including mandatory (and necessary) stop at Wye Landing near the midway point.
GPS info: Total moving time 5 hrs. 1 min. 23.9 miles.
The GPS chart plotter was very helpful in maintaining the most efficient course. Completed with 40% capacity remaining based on open circuit voltage read after batteries had rested a couple hours.
Ready to go before the race
Ready to go before the race
Off and running across the upper Chesapeake with the mandatory cut flowers for the picnic class.
Off and running across the upper Chesapeake with the mandatory cut flowers for the picnic class.
One of the beautiful homes along the Wye River with EBAA President Tom Hesselink in his Budsin Woodcraft  Lightening Bug.
One of the beautiful homes along the Wye River with EBAA President Tom Hesselink in his Budsin Woodcraft Lightening Bug.
As we were on the final leg of the race we had some pretty big cruisers coming by us in the channel as you can see in this video by the size of the swells from their wake.
https://youtu.be/gN6tTKfu4IU
Last edited by CaptDave on Mon Oct 05, 2020 7:03 am, edited 2 times in total.
Capt. Dave
Builder of the Amp Eater Aquatron

Hercdrvr
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Re: Solar powered Amp Eater

Post by Hercdrvr »

Impressive performance.
Matt B

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vupilot
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Re: Solar powered Amp Eater

Post by vupilot »

Very cool Dave! Looks like fun! Congrats.

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DrBryanJ
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Re: Solar powered Amp Eater

Post by DrBryanJ »

Very nice Dave. IT's amazing how long you can run your boat on battery power.
Bryan

Building a malahini "Mona Lisa"

My wife said "If I build a boat, she's getting a divorce."
We're still happily married, but now she just wants "the dam boat out of the garage."

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kens
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Re: Solar powered Amp Eater

Post by kens »

Well done sir.
Impressive.
Oak is over rated, everything about it takes extra time; then it warps, splits or checks !!! :roll:

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CaptDave
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Re: Solar powered Amp Eater

Post by CaptDave »

Our Wye Island Electric Boat Marathon was a very scenic trip and very enjoyable.
The event was covered by the editors of PropTalk magazine. I hope we will see an article in the November or December edition.
While we were there we visited the Chesapeake Bay Maritime Museum in St. Michaels, Maryland.
1879 Hooper Strait Lighthouse
1879 Hooper Strait Lighthouse
We saw many historic preservations in the works and of course viewed their large floating collection.
Boats in restoration
Boats in restoration
They are building an historically accurate replica of the Maryland Dove, a vessel that accompanied European settlers to the area in 1634.
The "New" Maryland Dove
The "New" Maryland Dove
Capt. Dave
Builder of the Amp Eater Aquatron

EnsWayne
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Re: Solar powered Amp Eater

Post by EnsWayne »

With the reserve capacity we calculated after the race, I think on a future run we might be able to push the time down to 4:45, which would be 5.2 mph. If you add your two solar panels, we could probably get below 4:30.
Ensign Wayne

JimmY
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Re: Solar powered Amp Eater

Post by JimmY »

Looks like a nice event. Congratulations!
-Jim
Nothing says poor craftsmanship like wrinkles in your duct tape!

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CaptDave
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Re: Solar powered Amp Eater

Post by CaptDave »

The Official Race results are in....
Official EBAA Results
Official EBAA Results
Aquatron completed the race with an average speed of 4.69 mph.
This is 86% of the hull speed.
If we are able to enter the race again I would hope to end up with over 90% hull speed.
I need to find time to get the Solar Panels installed which could add an extra 5 amps or so to the current I can draw from the batteries.
Capt. Dave
Builder of the Amp Eater Aquatron

Hercdrvr
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Re: Solar powered Amp Eater

Post by Hercdrvr »

Fun race and Cool performances figures, very cool.
Matt and Heather.

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