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Interceptor 05-05-2020 02:18 PM

The electric AMG hull might have had mock-up batteries with maybe one 12VDC battery hidden to power the dash lights and stereo for display purposes. Even the motors could have been a mock up.

underpsi68 05-05-2020 02:27 PM

Darr?

kidturbo 05-05-2020 06:24 PM


Originally Posted by Wildman_grafix (Post 4737297)
My thought would be a very light cat hull,,, or hydro foils. A Swedish friend showed me one let me see if I can find it.

EDIT: Found it. not very fast 50 mile range.

https://plugboats.com/swedish-electr...arting-to-fly/

That's a petty cool design you can only do with electrics. Nice to see people exploring the options.

When I first started floating the idea around, had that 40' Warlock cat in the yard. Thought was a hybrid electric, using a single diesel generator. Overall weight using minimal battery banks was still more than twin diesels and transmission setup. But ability to run silent with an amazing torque potential using a single powerplant is still pretty pimp.

However IMO the best, quickest, most reasonable path to speed and fun is just scale up the current RC stuff. Everything is out there relatively affordable to rig a twin shaft center rudder cat that blows minds 1 or 2 mile at a time. The ability to cool those motors and battery banks without robbing any power is all scalable tech. Along with quick charging technology, or a few solar spaniels over the dock, and your toy is always ready to go play. No fuel, oil, coolant, burnt plugs, pistons, or stupid chit to mess with. Plus with a little ingenuity, one could make all that power hot swapable.for say poker runs. Where ya exchange 40-50mph of top end for an extra 100 mile of cruising range. Just pop in a couple extra D-Cells and go play...

Anybody here ever run the piss out of a Tesla S Performance ?
I'm thinking put props on it...

pm203 05-05-2020 07:32 PM

The electric Cigarette actually floated and ran. Last location was at the MB headquarters/museum.

seafordguy 05-05-2020 07:48 PM

My neighbors have come to expect loud - I think this would throw them for too big of a loop......

Wildman_grafix 05-05-2020 09:33 PM

Kid,

I have read of a few trawlers with the setup you describe.

there was also Aussie company that did a 34 foot cruising cat.

it had two small diesels one in each pod, the electric motor / generator was the transmission so it could run in dual mode.

deck was covered in solar cells with a small wind generator.

If I remember in dual mode at 9 Knotts it got about 17 mpg.

larslindroth 05-06-2020 12:58 AM

PremierPower,

the R/C boats in my photos are made by a wizard outboards mechic in Pembroke, MA. He's a legend among R/C guys and easily spends 500 hours or more to build one of his model boats. He goes by the nickname Chip.


https://cimg5.ibsrv.net/gimg/www.off...2d942d15b2.jpg
https://cimg6.ibsrv.net/gimg/www.off...c11a662f9b.jpg


larslindroth 05-06-2020 03:00 AM

Back to the real deals.
 
Close to 15 years ago I spent some time with the founder of Scarab, Larry Smith, at The Annual Lido Boat Show, Newport Beach, CA. Larry Smith has always been known for playing around with the latest technology, (remember, first fellow using Kevlar49 in race boats), and at this show he was demonstrating the advantage of using the German Torqeedo electric outboard as a backup on sailboats. A few years later the most powerful Torqeedo motors found their way to the back of one of the Team Scarab Kona 17 sport boats.

Fast forward to today. Since most European governments are taxing the sh.t out of gas and diesel, and in addition many uber rich folks like to show off an electric powered carbon tender on their mega yacht, a niche market has developed for these tender/runabout manufacturers. One of the highest peforming ones is the Say 29E by SAY Carbon. The most interesting ones i.m.h.o. are the solutions brought forward by commercial yards that now finally are also catering to 'normal' boaters. The Norwegian company Evoy has produced ribs for commercial users, but are now bringing to market a ~350 lbs outboard motor with 115 hp and 150 hp alternate effect. Their big seller currently is predicted to be different versions of their Evoy1 rib. It runs at 900 hp for a little more than an hour and has been showing 55 knots GPS speed, which is world leading. They utalize a Mercury Bravo XR3 drive.

My personal favorite is of course a childhood friend's, Björn, small performance hydrofoil with a deep-V hull. He and his pal Alexander have tinkered with this hydrofoil for a long time and now it's perfected. The Swedish Candela 7 hydrofoil is stuffed with computer technology, but my friend's hydrofoil is all mechanical. Keeping it simple is often a lot more difficult than compensating with computors and sensors and that is the brilliant thing about this one. Its production boat esthetic design is currently being finalized by famous batboat creator Mannerfelt Design. The little performance hydrofoil could be run with either a small outboard or possibly say the electrical Norwegian Evoy outboard when it gets to the market in early 2021. Björn used to be a jetpilot in the Swedish Airforce and his father used to build cutting edge extreme deep-V personal performance boats with Kevlar49 in the late 70s in Sweden, so the all mechanical hydrofoil, called Mantaray, will be the underdog in price range for the regular boat fanatic that wants both efficiency, high performance and cutting edge seakeeping capabilities in a smaller package.

SAY 29E by SAY Carbon.


Evoy1 by Evoy Marine Norway.


Candela 7 hydrofoil, Sweden.


Mantaray Hydrofoil Craft by Mannerfelt Design, Sweden.



https://cimg4.ibsrv.net/gimg/www.off...ba79ca4a42.jpg




kidturbo 05-06-2020 05:28 AM

Really like all those new foil designs, and seems to be the wave of the future if you follow any cup series sailing. But I still prefer that old school seat of the pants raw torque feeling throwing monster roost a bit more.

So ya take a 29 Fountain, strip out the BBC, upgrade the Bravo a bit, and then drop in one of these 450lb Dual Warp 11 motor setups. Add a nice speed controller, and a couple used Tesla Model S/X 100 kWh battery packs, Y a now have a super cool 100+ mph boat for a little under $100k. Probably close to a 100 mile range mile range if ya keep your foot out of it. Plus think of how much stereo wattage you could pound with that kinda power...

Once that gets old, or one of your buddies thinks it cooler than you do, step all that up into a 40' carbon canopy cat with ASD#8's and a little larger water cooled components. Add a zero to that Fountain cost, and ya probably couldn't build em fast enough once everyone went for a ride...


Here is the tried and true racing Warp11 motors to a Powerglide setup.


chattviper 05-06-2020 06:58 AM


Originally Posted by kidturbo (Post 4737505)
Really like all those new foil designs, and seems to be the wave of the future if you follow any cup series sailing. But I still prefer that old school seat of the pants raw torque feeling throwing monster roost a bit more.








So ya take a 29 Fountain, strip out the BBC, upgrade the Bravo a bit, and then drop in one of these 450lb Dual Warp 11 motor setups. Add a nice speed controller, and a couple used Tesla Model S/X 100 kWh battery packs, Y a now have a super cool 100+ mph boat for a little under $100k. Probably close to a 100 mile range mile range if ya keep your foot out of it. Plus think of how much stereo wattage you could pound with that kinda power...

Once that gets old, or one of your buddies thinks it cooler than you do, step all that up into a 40' carbon canopy cat with ASD#8's and a little larger water cooled components. Add a zero to that Fountain cost, and ya probably couldn't build em fast enough once everyone went for a ride...


Here is the tried and true racing Warp11 motors to a Powerglide setup.

https://youtu.be/Ie7qvo-aC5k

It will be interesting to see when some of the big players, (mercury, yamaha, evinrude) come to the market with electric power. Not a matter of if as to when.


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