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Forum Locked2016 Event Operation and Rule Changes Summary

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Kaley View Drop Down
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    Posted: Sep/02/2015 at 2:55pm

2016 Event Operation and Rules Changes Summary

1.       Inspections will be on Monday and on Wednesday.  Teams who have not passed the first inspection by 4:00 pm Wednesday are not eligible for points in remaining events.
2.       Re-inspection for teams that have passed the first day inspection or the 4:00 pm Wednesday inspection can continue to compete Thursday-Saturday.
3.       Internal Combustion and Diesel Utility Class Teams must pass Emissions and Noise to take first, second or third in their category.
4.       ZE Teams must travel more than 10 miles and must be able to pull a load of at least 200 pounds to take first, second, or third place.
5.       The real motivation for these rules is to not allow a team to win first, second, or third place with a sled that does not meet minimum requirements of their category.  Unfortunately teams have taken home trophies without ever running because there were too few sleds in the category. 
6.       Fuel in the IC and DUC categories will be topped off (and possibly drained and topped off) before each event.  There will be no draining of fuel tanks prior to any event by teams. The real motivation here is to discourage dangerous draining of fuel in the lab prior to an event. 
7.       IC fuels in 2016 will include 87 octane which is commonly used in snowmobiles.  We will use 92 octane, low EVP fuel in emissions to avoid vapor problems.
8.       Universities may bring one each of an IC, DUC, and a ZE class snowmobile.
9.       The performance standard for an IC spark ignited snowmobile is 10 seconds or less to go 500 feet.  Currently the standard is 12 seconds to go 500 feet which some teams barely met this year. This can easily be part of the first day inspection process.
10.   In keeping with the goal of clean and quiet snowmobiles will have only one mode.  Two modes increase complexity for teams and judges.
11.   Minimum Emissions Score will be 175; the Yellowstone Best Available Technology (BAT) limit. Teams below this level will not pass emissions the event.
12.   Maximum Soot Level for IC and DUC: 50 mg/Kw-hr.  Previous level was 100mg/Kw-hr. Teams above this level will not pass emissions the event.
13.   Noise Event will be the SAE Steady State Test at 35mph outlined in the J1161 test procedure.  The target SPL is 67dBa.  A snowmobile that has passed this standard will be used as a control sled since environmental conditions affect sound pressure levels.  Teams must be equal to or lower than the control sled SPL to pass the Noise Event. As we have done in the past, the Noise event will be run in approximately a 4 hour window of time.
Kaley Zundel
Collegiate Design Series Program Manager
SAE International
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