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information about the SAE Clean Snowmobile Challenge

Environmental Concerns

A chief pleasure of snowmobiling is the contact with the wilderness that it enables. Without this activity, many people would see much less of nature during the cold winter months when snow covers the ground. We believe that enjoyment of the outdoors is vital in developing a respect for wild areas. Snowmobiling impacts these wild areas by producing excessive noise and excessive pollution in the form of both exhaust gasses and unburned fuel and oil. The air pollution is a problem because it contributes to smog. Noise pollution not only damages hearing in humans and disrupts wildlife, but also disturbs the peace for many trail abutters and property owners, people who control access to the land which riders of snowmobiles enjoy. Environmentally friendly snowmobiles will help alleviate the concerns of nature lovers while allowing the enthusiasts to continue their enjoyment of the sport.

Competition

The ultimate goal of this project is success at the SAE sanctioned competition held in March of 2004. Hosted by Michigan Technological University, it will be attended by approximately 250 students comprising 20 university teams. This area of Michigan is known to be fanatical about snowmobiling and brings a lot of excitement to the competition. Each team will compete in a range of tests, some of which like the sound test, must meet a set level of performance in order to score. Others, like the acceleration test, are scored relative to the best performance. The team with the most points at the end of the competition is declared the overall winner. Awards are also given for best performance in each individual test. The tests performed include:

  • Extensive emissions testing.

  • A fuel economy test wherein teams are given a fixed amount of fuel and expected to travel 100 miles as fast as possible.

  • An acceleration test, during which the noise test is also performed.

  • A performance and handling test performed in a snow-cross style on a professionally prepared course.
  • Overall design feasibility and design quality judging.
Engineering & Interest
As mechanical engineers, we have always had a fascination with machines, particularly fast ones that are fun to ride. Now that we have all spent long hours learning the principles needed to understand what goes into the design of these machines, we’re thrilled with the opportunity to put these principles to use by improving on what is available. We understand that people snowmobile because its fun; that’s why we do it. We are not setting out to produce a clean sled by merely compromising performance, but to produce a high performance machine to show that clean and quiet don’t have to mean “boring”.
Academic Connection
This project is accompanied by a yearlong course in which we design, build and test a prototype system. It fulfills a degree requirement of the Mechanical Engineering curriculum known as the Senior Design Project. Throughout the year we produce reports detailing our progress along with a final report for the class and a design report for the competition. A faculty advisor will be available to guides us, though we will complete the project for the most part independently. We will have the support of the engineering professors and their years of experience, along with friends of the university in industry.

Go to Official SAE Clean Snowmobile Website