Aero

Working on an idea for long 'tusks' on the nose of the rXA, I realized I might be able do away with the entire standard Traxxas front bumper and mounting assembly and replace it with a bracket and beam setup (similar to the latest LMP wing mount).

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To take full advantage of aerodynamic downforce, the chassis needs to provide a rigid foundation for the wing to act on. Previous iterations of my wing mount were prone to flexing. Throw in a crash or two and they would eventually fail entirely.

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All the cardboard experimentation I do is leading up to a set of design templates to be used for constructing the final Stratocore components.

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Test-build of the preliminary tunnel underfloor design. The Traxxas battery boxes angle up from a central low point on the underside of the chassis, so they leave some room for underfloor tunnels that the flat floor wasn't utilizing. The outlet end of the floor, and the rear diffuser, run at about the wheel/axle centerline. Aggressive, but effective...

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After building a prototype of the twin-goose-neck rear wing and diffuser setup, it looked like it could develop even further. Also, the flat floor left quite a bit of unused room under the battery boxes which could be utilized for underfloor tunnels.

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As my skills improve and car speeds increase, the little Traxxas Rally's instability at speed is becoming an issue. The chassis handles so much better without the bodywork on that I believe it's probably more than just a weight consideration.

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Amongst the R/C boards, there's a lot of desire for stability at speed. These little cars can be juiced upwards of 70mph or more, and their short wheelbase and high center of gravity pretty much guarantee they go cartwheeling at the slightest twitch of steering. More often than not, the advice turns to adding weight to achieve stability.

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