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Snowmobile Rear Drive Neil Miller Chris Hill Jeremy Nichols.

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Presentation on theme: "Snowmobile Rear Drive Neil Miller Chris Hill Jeremy Nichols."— Presentation transcript:

1 Snowmobile Rear Drive Neil Miller Chris Hill Jeremy Nichols

2 Research RND Innovators – Only company marketing a rear drive system Claims – Shorter stopping distance – Increased efficiency – Improved handling – Eliminates “darting”

3 Research Proof of concept – Two modified 800r’s Claim 20.4 mpg Next closest sled was a fuel injected 4-stroke with 14.4 mpg

4 RND Innovator’s Design

5 Cruise, Conventional Snowmobile

6 Cruise, Rear Drive Sled

7 Acceleration, Conventional Sled

8 Acceleration, Rear Drive Sled

9 Braking, Conventional Sled

10 Braking, Rear Drive Sled

11 Design Options Option 1 – Use drive shafts Use bevel gears from an outboard engine – Bolt in design – Reasoning No modifications to the tunnel Keep center of mass in the middle of the tunnel – Disadvantages Heavier than stock Steep U-Joint angles

12 Option 1

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14 Option 2 Belt drive – Use synchronous belt – Bolt in design – Adanvtages: Lighter than drive shafts Don’t have to worry about U-Joint angle Simpler to produce Lighter than stock – Disadvantages: Snowpack in the skid Belt whine

15 Option 2

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17 Testing Using electric motors (Possible depending on time) Fuel efficiency runs Put scales under skis on the track dyno

18 Questions?

19 Sources


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