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Home Made Hovercraft with pictures...

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  • Home Made Hovercraft with pictures...

    After a few requests for pictures of a hovercraft I built, I finally found them and here you go:

    I built this in 1977 when I was much younger and had more hair (actually I still have the same amount of hair, it has just moved to other parts of my body)

    Specs: Approx 12 ft long by 5 1/2 ft wide
    constructed of 3/8 plywood and wood products with fiberglassed
    seams and top.
    Air skirt...silver coated, neoprene with nylon thread (very strong
    but flexible stuff).
    Seams glued with Bostick (sp) 1177 (contact cement)
    and stitched by hand.
    Two 18hp 2 stroke gas engines...
    one engine turning a 30 in duct propeller for lift...direct drive
    one engine with belt reduction turning a 42 in propeller for propulsion.
    Will float- approx 1000lbs floatation per product literature
    Plans were purchased from Universal Hovercraft -this model, I believe
    was a UH 12.
    Original plans called for a single engine; driving both props.
    What I did not like about that was if you lowered your propulsion
    prop speed, you also lowered the lift fan speed, which would bottom
    out the unit.
    That is why I went with two engines...I could stop forward movement
    without losing any lift.

    Each engine has a voltage output wire which I connected to two panel mount volt meters and calibrated to use as tachs
    That is what the two pod looking things ahead of the steering wheel are. Each engine has its own throttle and can be controlled individually.
    Propellers and hubs were purchased from a company called Banks Maxwell.
    I found the engines locally at a Go Cart supply. They are rated for
    18 hp if they have tuned exhaust; which they didn't.
    When I made this I had a jig saw, belt sander, hand drill, small tap & die set and not much else.
    Attached Files
    Last edited by monte55; 03-12-2008, 02:35 PM.
    Nick
    Miller 252 Mig
    Miller Cricket XL
    Millermatic 150 Mig
    Miller Syncrowave 200 Tig
    2-O/A outfits
    Jet Lathe and Mill
    Jet 7x12 horz/vert band saw
    DeWalt Multi Cutter metal saw
    Century 50 Amp Plasma Cutter
    20 ton electric/hydraulic vertical press
    Propane Forge
    60" X 60" router/plasma table

    www.youtube.com/watch?v=jTu7wicVCmQ
    Vist my site: www.nixstuff.com
    and check out some of my ironwork and other stuff

  • #2
    Home Made Hovercraft..last picture

    Actually what we call a hovercraft I believe, was invented by the British and are known as GEM--- ground effect machines.
    Attached Files
    Nick
    Miller 252 Mig
    Miller Cricket XL
    Millermatic 150 Mig
    Miller Syncrowave 200 Tig
    2-O/A outfits
    Jet Lathe and Mill
    Jet 7x12 horz/vert band saw
    DeWalt Multi Cutter metal saw
    Century 50 Amp Plasma Cutter
    20 ton electric/hydraulic vertical press
    Propane Forge
    60" X 60" router/plasma table

    www.youtube.com/watch?v=jTu7wicVCmQ
    Vist my site: www.nixstuff.com
    and check out some of my ironwork and other stuff

    Comment


    • #3
      Very cool. How was it to fly/drive?

      Comment


      • #4
        Wow, too cool

        Thanks for posting the pics Monte. Tell us how it drove and how do you stop?
        John

        Thunderbolt AC/DC
        MM 175
        Maxstar 150 STL
        Blue Star 185 DX
        Spectrum 375

        Comment


        • #5
          To stop very qiuckly....hit a building or similar. Your'e floating on a cushion of air and there are no brakes. You can do a 180 and apply full thrust power
          to slow you down or shut down lift fan and settle on the skids. If in water, you'll slow down fast with a power shut down. They can go anywhere it's flat
          and depending on thrust power, climb grades. I really had no place to use it without a lot of hassle. I love things that use engines, propellers, etc. so this seemed like a good project. If you have access to a large area or frozen lake, it would be a blast. They can go from water to land and keep on going if nothing gets in your way.
          Nick
          Miller 252 Mig
          Miller Cricket XL
          Millermatic 150 Mig
          Miller Syncrowave 200 Tig
          2-O/A outfits
          Jet Lathe and Mill
          Jet 7x12 horz/vert band saw
          DeWalt Multi Cutter metal saw
          Century 50 Amp Plasma Cutter
          20 ton electric/hydraulic vertical press
          Propane Forge
          60" X 60" router/plasma table

          www.youtube.com/watch?v=jTu7wicVCmQ
          Vist my site: www.nixstuff.com
          and check out some of my ironwork and other stuff

          Comment


          • #6
            How effective was that windshield?
            SYNCROWAVE 200
            Atlas 618 lathe (vintage 1960) reconditioned DC
            Sioux 3/8 Pneumatic Reversible Drill
            Makita Everything else
            2400 square feet of Sanford and Son lookin shop space
            "Once the spoon flys, putting the pin back in won't solve anything"
            USA 15T, 15V

            www.myspace.com/blackbird455

            http://i100.photobucket.com/albums/m...5/DSC00356.jpg two cans, one welder

            Comment


            • #7
              Actually it's a water splash guard which just got in the way and I removed as you can see in the pics.
              Nick
              Miller 252 Mig
              Miller Cricket XL
              Millermatic 150 Mig
              Miller Syncrowave 200 Tig
              2-O/A outfits
              Jet Lathe and Mill
              Jet 7x12 horz/vert band saw
              DeWalt Multi Cutter metal saw
              Century 50 Amp Plasma Cutter
              20 ton electric/hydraulic vertical press
              Propane Forge
              60" X 60" router/plasma table

              www.youtube.com/watch?v=jTu7wicVCmQ
              Vist my site: www.nixstuff.com
              and check out some of my ironwork and other stuff

              Comment


              • #8
                Originally posted by monte55 View Post
                To stop very qiuckly....hit a building or similar. Your'e floating on a cushion of air and there are no brakes. You can do a 180 and apply full thrust power
                to slow you down or shut down lift fan and settle on the skids. If in water, you'll slow down fast with a power shut down.
                With some cleaver engineering I would think you could design a propeller with an adjustable pitch, enough to actually reverse the thrust, that would effectively slow you down and bring it to a stop. Kind of like a helicopter rotor but less intricate as you would not need it for directional control.
                To all who contribute to this board.
                My sincere thanks , Pete.

                Pureox OA
                Westinghouse 300 amp AC stick
                Miller Syncrowave 250
                Hexacon 250 watt solder iron

                Comment


                • #9
                  There are quite a few manufacturers out there now that offer small props that have "beta" range pitch control.......in 1977 that would have been nearly impossible to find one that would work on an 18 horse .
                  SYNCROWAVE 200
                  Atlas 618 lathe (vintage 1960) reconditioned DC
                  Sioux 3/8 Pneumatic Reversible Drill
                  Makita Everything else
                  2400 square feet of Sanford and Son lookin shop space
                  "Once the spoon flys, putting the pin back in won't solve anything"
                  USA 15T, 15V

                  www.myspace.com/blackbird455

                  http://i100.photobucket.com/albums/m...5/DSC00356.jpg two cans, one welder

                  Comment


                  • #10
                    I have no idea what a BETA RANGE pitch blade is. Please explain.
                    Nick
                    Miller 252 Mig
                    Miller Cricket XL
                    Millermatic 150 Mig
                    Miller Syncrowave 200 Tig
                    2-O/A outfits
                    Jet Lathe and Mill
                    Jet 7x12 horz/vert band saw
                    DeWalt Multi Cutter metal saw
                    Century 50 Amp Plasma Cutter
                    20 ton electric/hydraulic vertical press
                    Propane Forge
                    60" X 60" router/plasma table

                    www.youtube.com/watch?v=jTu7wicVCmQ
                    Vist my site: www.nixstuff.com
                    and check out some of my ironwork and other stuff

                    Comment


                    • #11
                      home made hovercraft

                      I must say you do some really fine looking work, You are an artist

                      Comment


                      • #12
                        do you still have the hovercraft?
                        This is an automotive discussion forum that has some great infromation

                        www.autobodytoolmart.com/shoptalk

                        Comment


                        • #13
                          No. I sold it about a year after I made it. I really had no place to use it.
                          I'm working on a micro lite helicopter now.
                          Last edited by monte55; 02-18-2009, 09:30 PM.
                          Nick
                          Miller 252 Mig
                          Miller Cricket XL
                          Millermatic 150 Mig
                          Miller Syncrowave 200 Tig
                          2-O/A outfits
                          Jet Lathe and Mill
                          Jet 7x12 horz/vert band saw
                          DeWalt Multi Cutter metal saw
                          Century 50 Amp Plasma Cutter
                          20 ton electric/hydraulic vertical press
                          Propane Forge
                          60" X 60" router/plasma table

                          www.youtube.com/watch?v=jTu7wicVCmQ
                          Vist my site: www.nixstuff.com
                          and check out some of my ironwork and other stuff

                          Comment


                          • #14
                            Nick,
                            After reading your posts for some time, you never cease to amaze me. You are quite talented!!!!
                            Becky
                            Thanks Becky

                            Miller Matic 210

                            Syncrowave 250

                            Lincoln Weld Pac 100

                            Comment


                            • #15
                              Thank you for the kind words.
                              Nick
                              Miller 252 Mig
                              Miller Cricket XL
                              Millermatic 150 Mig
                              Miller Syncrowave 200 Tig
                              2-O/A outfits
                              Jet Lathe and Mill
                              Jet 7x12 horz/vert band saw
                              DeWalt Multi Cutter metal saw
                              Century 50 Amp Plasma Cutter
                              20 ton electric/hydraulic vertical press
                              Propane Forge
                              60" X 60" router/plasma table

                              www.youtube.com/watch?v=jTu7wicVCmQ
                              Vist my site: www.nixstuff.com
                              and check out some of my ironwork and other stuff

                              Comment

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