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dogon dory
Joined: 10 Jun 2004
Posts: 1321
State or Province: AK
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: DogOnDory
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 Posted: Fri Feb 29, 2008 9:44 pm Post subject: |
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Sorry, Folks - Post Deleted By Author
Last edited by dogon dory on Tue Mar 04, 2008 9:03 am; edited 1 time in total |
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journey on
Joined: 03 Mar 2005
Posts: 3595
City/Region: Valley Centre
State or Province: CA
C-Dory Year: 2005
C-Dory Model: 25 Cruiser
Vessel Name: journey on
Photos: Journey On
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| Posted: Fri Feb 29, 2008 9:52 pm Post subject: |
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OK, I'm confused. Waves do have a lot of energy, look what happens when they hit shore, especially a breakwater. And the motion of any single particle in a wave is circular, in the vertical plane. I got that. Also a spring, when it's compressed stores energy, and when it relaxes releases that energy. I also know that if you can develop differential motion, a spring between the horizontal fin and the hull can be compressed.
What's confusing me, is how in the middle of the ocean, where the period of waves can be fairly long, how does that fin get compressed? As the hull goes up so would the fin. In my experience the hull rides the wave, unless the slope is abrupt (big seas.) Also, in a calm, I guess you'd just sit there. To propel a boat of that size, you'd need some BIG springs,and they wouldn't compress easily. Just help lift the hull, I would think.
As to a dolphin, that tail doesn't absorb energy from a wave, it imparts energy, just as an oar does.Thus they can swim underwater, where there are no waves.
Anyway, if that guy can get enough energy out of open ocean waves to propel a boat across the ocean, I'm impressed. Power generation techniques have been proposed by anchoring cables to the bottom of the ocean, and letting wave driven floats provide the force and motion to generate electrical power; but that boat is free floating.
Boris |
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B~C
Joined: 31 Oct 2003
Posts: 2861
City/Region: Bend
State or Province: OR
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: Blue~C
Photos: Blue~C
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dotnmarty
Joined: 03 Nov 2003
Posts: 4196
City/Region: Sammamish
State or Province: WA
C-Dory Year: 1993
C-Dory Model: 16 Angler
Vessel Name: LIZZIE II
Photos: Lizzie
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| Posted: Fri Feb 29, 2008 10:44 pm Post subject: |
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do they make a nuclear powered 40 hp O/B?
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MartyP
"...we're all in the same boat..." |
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B~C
Joined: 31 Oct 2003
Posts: 2861
City/Region: Bend
State or Province: OR
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: Blue~C
Photos: Blue~C
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| Posted: Fri Feb 29, 2008 10:53 pm Post subject: |
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| no but I'll bet if you replaced one of your 40 hp Honda powerheads with an electric motor and swapped out the other 40 hp honda power head with a generator that was powered by the prop...you could run forever..assuming you run twin honda 40's...you may be out of luck with the single |
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dotnmarty
Joined: 03 Nov 2003
Posts: 4196
City/Region: Sammamish
State or Province: WA
C-Dory Year: 1993
C-Dory Model: 16 Angler
Vessel Name: LIZZIE II
Photos: Lizzie
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| Posted: Fri Feb 29, 2008 10:58 pm Post subject: |
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| I think Sark's 22 is already named E-fishin-C |
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starcrafttom
Joined: 07 Nov 2003
Posts: 7882
City/Region: marysville
State or Province: WA
C-Dory Year: 1984
C-Dory Model: 27 Cruiser
Vessel Name: to be decided later
Photos: Susan E
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Captains Cat
Joined: 03 Nov 2003
Posts: 7313
City/Region: Cod Creek>Potomac River>Chesapeake Bay
State or Province: VA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Captain's Choice II
Photos: Captain's Cat
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| Posted: Sat Mar 01, 2008 8:25 am Post subject: |
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| Pat Anderson wrote: | | I'm with Tom on this one, I don't get it...the wave hits the fins and...what? The videos on the other site all had the rider pumping away, again with some kind of muscle power, to move whatever was below the water line. It would seem like waves hitting a fin would not, you know, do anything...but of course they must. |
Think of the heavy boat as the rider, the up and down motion imparted by the waves does the work and the boat moves forward. No waves, no motion though....
C'mon guys, believe.... A bumble bee can't fly either, it violates the laws of aerodynamics...
Charlie
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CHARLIE and PENNY CBRAT #100
Captain's Cat II 2005 22 Cruiser
Thataway (2006 TC255 - Sold Aug 2013)
Captain's Cat (2006 TC255 - Sold January 2012)
Captain's Kitten (1995 CD 16 Angler- Sold June 2010)
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Potomac River/Chesapeake Bay
K4KBA |
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oldgrowth
Joined: 27 Jun 2005
Posts: 2196
City/Region: Rochester
State or Province: WA
C-Dory Year: 2002
C-Dory Model: 16 Cruiser
Vessel Name: C-Voyager
Photos: C-Voyager
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| Posted: Sun Mar 02, 2008 10:17 pm Post subject: |
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| starcrafttom wrote: | Dog you have the idea but not all the facts. follow this link and read for your self. I subscribe to this and get a copy every month. Some very good reading.
http://www.hillsdale.edu/news/imprimis.asp |
Tom – that was a great article, should be required reading.
________
Dave  |
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starcrafttom
Joined: 07 Nov 2003
Posts: 7882
City/Region: marysville
State or Province: WA
C-Dory Year: 1984
C-Dory Model: 27 Cruiser
Vessel Name: to be decided later
Photos: Susan E
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| Posted: Sun Mar 02, 2008 10:22 pm Post subject: |
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| Dave , if you go back to that link you can view at all the guest speakers monthly articales all the way back to the 70's. Lots of good reading. Last month was on why the canadian health care system is failing and is not a good model for us or them. |
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hardee
Joined: 30 Oct 2006
Posts: 12633
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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| Posted: Mon Mar 03, 2008 1:38 am Post subject: |
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| Quote: | | .... I'll bet if you replaced one of your 40 hp Honda powerheads with an electric motor and swapped out the other 40 hp honda power head with a generator that was powered by the prop...you could run forever..assuming you run twin honda 40's...you may be out of luck with the single |
I think that one would be called: Propetual Mo -C-ion
Harvey
SleepyC 
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Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep. |
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