1. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 AFV Powerplant Energy Storage Fuel and Lube Cooling Power Delivery Drivetrain and Suspension PropulsionSuspension Steering Mobility Assistance Braking Chassis and Mission Equipment Package (HULL / MEP) StructurePayload Internal External (MEP) Envelope (Space Claim) Command and Control Protocol Compliance Mission Sensors Payload Sensors Basic Vehicle Design Architecture – Revised Organizational Chart 4 Major System Groups, each with various subsystem responsibility

2. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 Assignment - to be turned in as a special memo on 09/28/05 1)Given the basic vehicle design architecture diagram, identify which group(s) and subsystem(s) has primary responsibility for each of the following vehicle components and what other groups need to be consulted in the decision process: Tires – Drivetrain, Propulsion, Envelope Exhaust – Powerplant, Power delivery, Cooling, Envelope Fuel Tank – Powerplant, Fuel & Lube, Envelope Controller Area Network (CAN Bus) – Command & Control, Powerplant, Payload Engine Mounts – Powerplant, Chassis, Structure

3. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 Assignment, cont’d- Note there are two options for this problem. If you are interested in vehicle design, please answer the following question: 2VD) Compare the drawbacks and benefits of purchasing/modifying an existing vehicle platform versus designing/building a vehicle platform from scratch. Identify two potential platforms for purchase. List performance and vehicle specifications wherever possible, and note short comings and degree of modifications that would be necessary to increase performance.

4. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 New Design –Greatest Flexibility/Options –Risk in making it all work in a timely fashion Modify –Insures a vehicle for delivery –Limits design possibilities due to space and structural requirements

5. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 Assignment, cont’d- Note there are two options for this problem. If you are interested in alternative fuels, please answer the following question: 2AF) Suppose we wish to power the vehicle in silent propulsion mode using an alternative fuel. Identify five potential alternative fuel sources for use. List advantages and disadvantages wherever possible, especially with respect to the usefulness of each alternative fuel source in a field-based military application.

6. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 1 2 3 4 5

7. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 3)Make an assumption for the propulsion mechanism (wheels or track) of the vehicle. Based on that assumption, start to develop a more detailed vehicle specification. For example: Assignment, cont’d- X, Y, Z dimensions? Weight, CG location, Wheelbase? Power Required? Weight and Volume of powerplant? Ground Pressure? Wheelbase? # of Wheels? Wheel Diameter? OR # of Tracks? Track Length/Width Identify specifications that your vehicle may not meet

8. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 Simplest Consideration –4 wheel ATV: Polaris Sportman, Military –89” L x 47” W x 51” H –1,044 lbs curb weight, 850 lb payload –683 cc 4-stroke –Will not meet gap crossing, side slope, payload requirements –5 psi ground pressure

9. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 Advanced Consideration –Wolverine: 4 tracks on walking beam suspension –118” L x 75” W x 45” H –60 hp turbo diesel –3200 lb + 2400 lb payload = overweight –(4) 20 x 38 tracks, 1.2 psi ground pressure

10. Alternative Fuels Group- Meeting 09/28/05 AFV_092805 DARPA Grand Challenge Goal: 175 miles across desert, autonomously Prize: $2 Million cash 195 applicants 43 semi-finalists (current status) Entries range from ATV’s to Oskosh Truck’s 5-ton 6x6 20 Finalists Race is Oct. 8