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    Red Bull soapbox racing.

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    • DanielD Offline
      Daniel
      last edited by

      Great looking racer, Mike. But I wonder if the pocket around the red cone will create too much wind resistance, especially at high speeds.

      My avatar is an anachronism.

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      • Mike AmosM Offline
        Mike Amos
        last edited by

        Thanks Daniel, I am thinking of having slots on the side of the nose to allow that air out. I may just omit the whole thing though. For the challenge the subject must be interesting first and efficient last.

        Absentia mortis praesentiam vitae probat, vita autem est argumentum constantiae.

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        • HornOxxH Offline
          HornOxx
          last edited by

          Hi Mike
          just a thought - could a three wheel concept be a suitable variant for your jet-design?


          seifenkiste 02.jpg

          never trust a skinny cook

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          • Mike AmosM Offline
            Mike Amos
            last edited by

            Interesting but no, those things are terribly unstable and I have yet to see one get past the second obstacle. If you are going to do anything with three wheels, the single wheel should be at the rear of the vehicle for stability purposes.

            Absentia mortis praesentiam vitae probat, vita autem est argumentum constantiae.

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            • RichardR Offline
              Richard
              last edited by

              Nice mike, you'd want to be willing to spend some money on the cockpit cover! I see $$$$!

              I love the idea of billycart racing, would love to see it more than just a silly free for all but a proper downhill challenge like downhill MTB!

              [BUILTBRAND.COM.AU](http://builtbrand.com.au/)

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              • Mike AmosM Offline
                Mike Amos
                last edited by

                Thanks, agreed on both those points Richard, the screen would probably be cut down for headroom as much as anything. The widest part of the cockpit is just over 18 inches at the elbows so a taller person might have problems fitting.

                Absentia mortis praesentiam vitae probat, vita autem est argumentum constantiae.

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                • Bryan KB Offline
                  Bryan K
                  last edited by

                  Both of those look cool and fun!

                  See my portfolio at https://delphiscousin.blogspot.com/

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                  • Mike AmosM Offline
                    Mike Amos
                    last edited by

                    Ta muchly, HO's looks good I agree, cheaper to make too.

                    Absentia mortis praesentiam vitae probat, vita autem est argumentum constantiae.

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                    • olisheaO Offline
                      olishea
                      last edited by

                      great stuff!

                      Could I suggest lowering the centre of gravity by increasing the height of wheel axles? Or add a bend in the axle so the craft sits lower against the floor.

                      oli

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                      • Mike AmosM Offline
                        Mike Amos
                        last edited by

                        Good suggestion and I am working on it, also the suspension, braking and steering system. In fact first draft is in. I can not go too low as some of the suspension characteristics rely on a bit of vertical movement. It might hurt if it goes too low.


                        6.jpg

                        Absentia mortis praesentiam vitae probat, vita autem est argumentum constantiae.

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                        • Mike AmosM Offline
                          Mike Amos
                          last edited by

                          I dropped the shell by 1.75 inches and the suspension attachment bars by 3 inches which will allow the body to achieve the lower centre of gravity mentioned above. Some of the frame is in as are the disc brakes which will come from a street bike. The actual suspension hydraulic units will also come from a street bike but are not attached yet.


                          10.jpg

                          Absentia mortis praesentiam vitae probat, vita autem est argumentum constantiae.

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