Alternative Powered Snowmobile Development Grant uri icon



  • Due in part to stringent noise and air pollution control measures recently imposed by the US National Park Service, the Society of Automotive Engineers (SAE) has instituted a student competition called the Clean Snowmobile Challenge (CSC). The competition is designed to encourage the development of a snowmobile that will meet or exceed specific required pollution and noise control measures. The objective of this project is to produce a snowmobile that will meet the criteria for the 2001 competition.

    Specific requirements for a snowmobile in the CSC 2001 Competition include the following standards:

    • CO (carbon monoxide) reduction of 25 percent
    • UHC (unburned hydrocarbon) reduction of 50 percent
    • No significant NOx increase
    • Sound pressure of <74 dBA at 50 feet
    • No loss in performance or handling


    The snowmobile will be a modified stock chassis with a drive train designed to minimize power transmission losses. The power plant is to be a small Wankel-type rotary engine chosen for its high power to weight ratio and efficiency, coupled with a low production of harmful exhaust gases. Approximately 50 percent of the required funding will come from the state of Idaho and industrial sponsors. It is expected that the project will be extended a second year in order to include the development of a hybrid electric snowmobile the second year.

date/time interval

  • January 1, 2001

total award amount

  • UTC funds committed to this project are $23,576.

local award ID

  • KLK303