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  • polypropylene wheels

    Anybody out there who has used those Oz-made plastic wheels on a gyro? They look like a strong design and have ball bearings so it could be used instead of the steel wheels as used on a Dominator.http://fallshaw.com/wheel/specialise...ic/plasticKind regards,Willem

  • #2
    I guess the thing to look at is the load rating that you are going to use, here is falshaw"s idea of how good their gear is from their table:100kg @ 8km/h 220lb @

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    • #3
      Nick,I know what you are saying, and it makes sense for sure, but:-Part of the limitations are due to the tyres.-I have seen them before on a gyrocopter, probably on this forum.-I am wondering if the steel Dominator wheels are any better.-All other plastic 8" wheels I have seen are useless crap and are still used plenty with PPC"s and trikes.What i would like to find is an 8" alternative for Azusa wheels.Kind regards,Willem

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      • #4
        UV rays are plastic wheels biggest killer and I know of a trike instructor that had a plastic front nose wheel collapse and cause a roll over.

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        • #5
          My Gyro is flat out doing 80 km/h with a tail wind at full tilt!, let alone on a take off rollNick,What you are forgetting my learned freind, is that as your machine gets faster along the ground, more weight is placed on the rotors, thereby relieving the weight on the wheels. That is why we call it a "transition".I had poly wheels on a nice little machine and they gave me no problems, however, used on the current fleet of "dreadnaughts" that we have flying around they may not be the best idea in the long term based on sams observations.mark.

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          • #6
            Dyna,You might consider go-kart rims and tyres, they are still probably not rated for the weight but they at least are a peg up on poly for speed, loading and heat resistance.Mark,I didn"t forget that factor... my allowances are for things like learner operation where abuse can be phenominal [i], the ride for the machine and pilot could be very rough, not like your slick hand on your joystick which would permit you to come smoothly

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            • #7
              Injection moulded amorph plastic products like ABS are often almost destroyed during their production process. Too much pressure when they are getting solid during the cooling cycle will have the effect of a hammer strike on a reinforced piece of glass. After a few years of being in the daylight they will literally fall apart.I don"t rate polypropylenes as great technical materials, but by the fading of the colours you will have a good indication of their condition.The Fallshaw wheels seem to be just a better design then most wheelbarrow wheels.Don"t be worried because I am using magnesium rims with 380x150-5 aircraft tyres. They have a little too much drag for my liking and i would like to find a skinnier tyre/wheel comboKind regards,Willem

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              • #8
                G"Day Willem,I use Hegar alloy split rims 6"" mains with Chinese Rubber from Spruce and others and 4" solid alloy rim from Eddie"s Gokart supplies in South Oz again with the Chinese rubber.Allan uses same mains but went to a 5" rim up front so it would be less likely to "rabbit hole".My split rims have been together for over 2 years with no major leaking problems. I reckon there are spot on.Eddies products are top shelf too.Chinese rubber is also listed in Spruce catalogue, name like Shin Fu...Chung Ho...something Good luck.Mitch

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