16' Eagle FBL, an MPX Foiler-the Actual Boat

Discussion in 'Multihulls' started by Doug Lord, Jan 29, 2012.

  1. HASYB
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    HASYB Senior Member

    Mmmm, don't give up so quickly Doug, why not take on a bit more DIY approach like you did before.
    It would be very interesting indeed to see this boat actually build.

    Cheers,

    Hielan
     
  2. Doug Lord
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    Doug Lord Flight Ready

    Thanks, Hielan. I'm not giving up yet but the costs are way in excess of what I had anticipated. I have to do it this way because otherwise I couldn't possibly get it done. If I try the "DIY" approach you're referring to I stand an excellent chance of being permanently crippled. I need to have a back operation that will "fix" my problem but it will take me out for 9-mos-to a year. I want to get this boat or another design of mine sailing before I do that.
     
  3. Phil Locker
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    Phil Locker Junior Member

    Unfortunately we just can't think of a cost effective way of accurately shaping the cores to Doug's required radius. Not on our 3-axis machine anyway. It would be very fiddly work, especially as wood cores are requested and the scale is so small. Foam you might be able to shape flat and then bend. Then even for laminating, to keep the shape accurate it will be necessary to vacuum bag into a shaped jig.

    Phil
    Follow our workshop tweets @CCIComposites
     
  4. Doug Lord
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    Doug Lord Flight Ready

    16' Eagle FBL

    I'm still looking into many different options but this one is likely dead: estimated cost for having a "blade like" hull built is $3500 bringing the cost to over 20 grand which I just cannot spend.
    Looking again at the hull that I have which was the basis of the SRT thread. The downside of using it has been the mods required and the all up weight.
    I'm considering a small planing monohull that would allow me to test some monohull related concepts I've developed over the last few years as well as experiment with DSS-but cost is a factor since I have to have the hull built to my design-can't build it myself now.
    So we'll see what can be worked out.....



     
  5. Corley
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    Corley epoxy coated

    It's a salient point unfortunately. I think we all crave multihulls made of the best materials with the lightest cores but the cost just starts to go off the scale. You never know Doug you might be able to revisit this project at a later date nothing is ever dead until you lose the desire to cease pursuing it.
     
  6. Doug Lord
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    Doug Lord Flight Ready

    ===================
    Thats for sure , Corley-thanks. My brother has made it possible for me to do
    something-just not sure what that is. One thing is for sure-it will be done right and will-mono or multi- be an experimental platform. I'm used to building my own boats-I can't just now and that sends the cost skyrocketing.
    I can't wait to get on the water.
     
  7. Paul B

    Paul B Previous Member

    You have all the parts from your "foiler". You've had these parts back for a couple of years. Why haven't you been "on the water", foiling all over the place?
     
  8. Doug Lord
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    Doug Lord Flight Ready

    Eagle fl

    I've done a lot of work on foil design specifically for this boat and it and the MPX system should have great application for small high performance tri's. This is a relatively shallow draft foil and simpler to make than a curved foil-see sketch below. So far, it still looks like I won't be able to have this boat built.....
    The horizontal foil, "A", in the picture acts to lift(as does the other side "B") in the lightest of air. The concept is that "A" behaves as a DSS foil up to the point that speed is fast enough for "B" to start taking most of the load with "A" (and the ama) clear of the water. The advantage of the configuration, as I see it, is exceptional low speed lift with an automatic reduction in wetted surface as speed increases.
    I added two red waterlines to show, a little better, what I mean.
    =======
    Here, again, is an explanation of the MPX foil system for which this foil is specifically designed:

    click on image: (This is a combination of a DSS type foil(used so far on mono's with an angled surface piercing foil(a la Hydroptere and others). It provides all the RM for the boat thruout the speed range with no crew movement required except possibly with sudden gusts while the boat is stopped though the volume of the ama to take care of that.
     

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  9. Doug Lord
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    Doug Lord Flight Ready

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  10. dstgean
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    dstgean Senior Member

    If you built one to their design, you could add foiling elements. It's not so different from Bradfields' boat. Lots of power, reasonable weight--certainly less than the Hobie Trifoiler or Windrider. Add the L foils to the ama and go. Seriously, for a small tri, ply is really light and strong. Given your penchant for all things foils, you could get a high power platform and add the foils. I can't imagine team B&B have 20K in their boat....

    Dan
     

  11. Doug Lord
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    Doug Lord Flight Ready

    ========================
    Just a few years ago I could have built my boat 100%-now I have to pay someone else to do it-makes a huge difference. I love the 20 but it is not a design suitable for my foil system.
    Update #1: because of unfortunate circumstances the project to build the EagleFL is dead for the (un)forseeable future. It is a huge disappointment and discouraging turn of events.
    I will ,however, resume work soon on the SRT test model and get that sailing as soon as possible.

    Update #2: while the Eagle FL can't be done, which is indeed disappointing, I believe I have found a way to convert an existing hull into a trimaran(the hull serving as the basis of the SRT*) and create a daysailer-not a superboat like the potential of the Eagle or SRT. But considering all the factors it is better than doing nothing by a long shot. And it gets me sailing again in my own boat.

    Update #3: new boat "Dream Flyer" started today-see http://www.boatdesign.net/forums/multihulls/dream-flyer-fl-18-daysailing-trimaran-42340.html

    * 1) picture of the boat to be converted, 2-4 show hull with racks removed:
     

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    Last edited: Mar 19, 2012
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