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Thread: pedal power

  1. #36
    Join Date
    Jan 2008
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    Lynden, Wa
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    3,234

    Default Re: pedal power

    I hope to fit a Mirage drive to a Sail & Oar™ boat. Not that I will lose the Oar part of the equation, but my legs are stronger, have greater endurance, and I like facing forward. With the longer fins, I think it ought to drive 500lbs of boat, gear, and sailor just fine.
    There's the plan, then there's what actually happens.

    Ben Sebens, RN

    15' Welsford Navigator Inconceivable
    16' W. Simmons Mattinicus double ender ​Matty

  2. #37
    Join Date
    Apr 2004
    Location
    Brisbane QDL (Everton Park)
    Posts
    559

    Default Re: pedal power

    It should push you near hull speed anyway. BTW, you can reverse the drives in the well for reverse.
    My legs are certainly in better shape than my dodgy shoulders.
    =~=~=~=~=~=~=~=~=~

    When we remember we are all mad, the mysteries disappear and life stands explained.

    Mark Twain

  3. #38
    Join Date
    Apr 2004
    Location
    Brisbane QDL (Everton Park)
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    559

    Default Re: pedal power

    Quote Originally Posted by BBSebens View Post
    I hope to fit a Mirage drive to a Sail & Oar™ boat. Not that I will lose the Oar part of the equation, but my legs are stronger, have greater endurance, and I like facing forward. With the longer fins, I think it ought to drive 500lbs of boat, gear, and sailor just fine.
    Have you decided on what kinda drive well be build?
    Hobie has a nice one they sell separately but it's only 5.5" tall. 'Wonder if it could be lengthened somehow.
    =~=~=~=~=~=~=~=~=~

    When we remember we are all mad, the mysteries disappear and life stands explained.

    Mark Twain

  4. #39
    Join Date
    Aug 2010
    Location
    BC Coast
    Posts
    3,833

    Default Re: pedal power

    I have had the chance to use several different boats that were peddle driven. One for about 10 minutes with a Mirage drive and another for a couple of hours with a Spin Fin mentioned by Gib. With the latter in a kayak with side ama-sponsons....I could easily cruise at a little better than 4 knots and spurts up close to 7. This was very much more efficient than moving the same boat with a paddle. My experience with the Mirage was similar though only for a short spin. The boat did not have the same speed potential, and was not as fast, but was still faster than paddling.

  5. #40
    Join Date
    Apr 2004
    Location
    Brisbane QDL (Everton Park)
    Posts
    559

    Default Re: pedal power

    Quote Originally Posted by gilberj View Post
    I have had the chance to use several different boats that were peddle driven. One for about 10 minutes with a Mirage drive and another for a couple of hours with a Spin Fin mentioned by Gib. With the latter in a kayak with side ama-sponsons....I could easily cruise at a little better than 4 knots and spurts up close to 7. This was very much more efficient than moving the same boat with a paddle. My experience with the Mirage was similar though only for a short spin. The boat did not have the same speed potential, and was not as fast, but was still faster than paddling.
    Did you happen to notice what size fins the Hobie was fitted with? There are 3 sizes.



    The larger two have adjustable tension so you can change the pitch.
    =~=~=~=~=~=~=~=~=~

    When we remember we are all mad, the mysteries disappear and life stands explained.

    Mark Twain

  6. #41
    Join Date
    Mar 2009
    Location
    Texas
    Posts
    2,358

    Default Re: pedal power

    Quote Originally Posted by leaotis View Post
    Have you decided on what kinda drive well be build?
    Hobie has a nice one they sell separately but it's only 5.5" tall. 'Wonder if it could be lengthened somehow.
    where do you see that well? I don't find it in the catalog. Thanks

  7. #42
    Join Date
    Apr 2004
    Location
    Brisbane QDL (Everton Park)
    Posts
    559

    Default Re: pedal power

    Quote Originally Posted by bluedog225 View Post
    where do you see that well? I don't find it in the catalog. Thanks
    I found it on their forum. It's suggested for boat building projects, they finally recognized us.

    http://www.hobiecat.com/forums/viewt...0cd1b378fcf935

    Your well needs to be the depth of the boat's draft plus a 3" or so.
    =~=~=~=~=~=~=~=~=~

    When we remember we are all mad, the mysteries disappear and life stands explained.

    Mark Twain

  8. #43
    Join Date
    Mar 2009
    Location
    Texas
    Posts
    2,358

    Default Re: pedal power

    Thanks. I guess stacked plywood ovals would be tne way to go. Up to a point. I've got a 6 inch draft. Adding 3 inches might not intefere with the pedals if it was flaired.

    Still thinking of ways to hang it off the back or side.

  9. #44
    Join Date
    Apr 2004
    Location
    Brisbane QDL (Everton Park)
    Posts
    559

    Default Re: pedal power

    Quote Originally Posted by bluedog225 View Post
    Thanks. I guess stacked plywood ovals would be tne way to go. Up to a point. I've got a 6 inch draft. Adding 3 inches might not intefere with the pedals if it was flaired.

    Still thinking of ways to hang it off the back or side.
    I had a CNC cut stacked ply well made, it was nice but way too heavy. I ended up using 2 of the ply slices as guides for making hot wire cut foam wells. They were glassed. There are foam well pics interspersed in the build pics if you're interested. I've posted these before, don't know if you've seen them.
    http://s455.photobucket.com/user/til...?sort=4&page=1
    =~=~=~=~=~=~=~=~=~

    When we remember we are all mad, the mysteries disappear and life stands explained.

    Mark Twain

  10. #45
    Join Date
    Mar 2009
    Location
    Texas
    Posts
    2,358

    Default Re: pedal power

    I didn't get it earlier but I see now. That plywood does look stout. Although, with the plastic base, it would be much smaller and I would not need the structural detail.

    I'll have to look into the hot wire foam. My skills are pretty basic though.

  11. #46
    Join Date
    Jan 2008
    Location
    Lynden, Wa
    Posts
    3,234

    Default Re: pedal power

    Quote Originally Posted by leaotis View Post
    Have you decided on what kinda drive well be build?
    Hobie has a nice one they sell separately but it's only 5.5" tall. 'Wonder if it could be lengthened somehow.
    Quote Originally Posted by leaotis View Post
    I found it on their forum. It's suggested for boat building projects, they finally recognized us.

    http://www.hobiecat.com/forums/viewt...0cd1b378fcf935

    Your well needs to be the depth of the boat's draft plus a 3" or so.

    It's all theory for now, but it looks like someone figured it out for me! Gonna have to do a little shopping.
    There's the plan, then there's what actually happens.

    Ben Sebens, RN

    15' Welsford Navigator Inconceivable
    16' W. Simmons Mattinicus double ender ​Matty

  12. #47
    Join Date
    Apr 2016
    Location
    Saltspring Island, BC, Canada
    Posts
    1

    Default Re: pedal power

    The SpinFin, originally made by Bob Stuart, is resuming production. It is now available in two versions: the original length model for kayaks and small monohulls and a 14" longer version for cats and deeper draft boats.
    More info can be found be emailing spinfin1@outlook.com
    Last edited by Mark Coulter; 04-10-2016 at 01:21 PM.

  13. #48
    Join Date
    May 2006
    Location
    Tampa Bay
    Posts
    3

    Default Re: pedal power

    Quote Originally Posted by Paul Pless View Post
    I've seen a number of Dispro boats aver the years. Have you seen Paul Gartside's pedal boat. I like his take on the retractable prop with built in skeg for protection. This boat has traveled the length of the Mississippi, then around Florida and up the Intracoastal then all the way to Nova Scotia.
    I'd like to get the plans for this. Do you know if they are available?

  14. #49
    Join Date
    Sep 2017
    Location
    Maine / New Hampshire
    Posts
    70

    Default Re: pedal power

    it's on the gartside website...

  15. #50
    Join Date
    Aug 2002
    Posts
    389

    Default Re: pedal power

    Quote Originally Posted by telenorth View Post
    it's on the gartside website...

    He was willing to sell the drive plans separately, to me, though I didn't go ahead with it. Mirage was getting big at the time.

    If a person really wants to go slow in shallow water, I think that Harry Bryan's fin might be a way to go.

    Also, for ideas, look up treddlecat on youtube, and related fin propulsion systems.

  16. #51
    Join Date
    Nov 2018
    Location
    Chattanooga
    Posts
    8

    Default Re: pedal power

    Quote Originally Posted by Tomcat View Post

    If a person really wants to go slow in shallow water, I think that Harry Bryan's fin might be a way to go.

    Also, for ideas, look up treddlecat on youtube, and related fin propulsion systems.
    this might be good video for this.


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