Electric Race Cars
Context
One hundred and ten feet of molten mayhem, ear splitting monster motors , sub eight second scale E.T's. 18 volts of electro shock therapy. Tire shredding, torque feasting tranny twisting burnouts. All the top runners are gonna be there! You could have a three speed floss o matic, monster inch, speed specific power plant or maybe an aluminum big block, alcohol drinking, nitrous guzzling, king of the road Loctite sponsored rail dragster.
The school halls will never be the same!
Bring your knee braces cause there's no room for the faint of heart.
We're turning our hallways into one big burn out box.
Free admission, starts at 12 PM, three weeks from today!
Sponsored by Loctite, Mopac Performance, Crane Cams, TCI Transmissions, IWE Rear Ends Only.
Brought to you by 99.3, The Fox.
Tickets available at all ticketmaster outlets.
Free photos with drivers for your younger brothers and sisters.
A Farm Team production.
Problem
Create an electric dragster to go 110 feet down the hall.
Design Constraints
Only legal power plant is a Radio Shack 9 - 18 VDC motor
Power supply can be up to two 9 vdc, Duracell Batteries.
Scale is 1:12, ie one inch equals one foot
Strip is one twelfth quarter mile; 110 feet.
First one across the finish line wins.
Must cost less than $8.00 per car
Design Considerations
Power transmission systems
Gear and wheel ratios
Wheels and axles, including bearing design
Chassis design, in metal, plastic, or wood.
Wiring and setup of the motor and batteries
Sequence
Think about and sketch your overall ideas
Find the appropriate material
Check your design with the teacher
Form necessary pieces and assemble dragster
Test car and make any necessary modifications
Race car
Management Issues
End of day 1 or 2: Approval of sketches
End of week 1: Finish final design and gather necessary materials
End of week 2: Complete dragster
End of week 3: Test and modify dragster. Prepare for race.
Related Studies
Drafting, sketching, and design
Math and Physics
Material science
Economics
Metalwork, Woodwork, and Power Technology
Electronics
Honest Self Evaluation
25 for design work, drawings, models, originality etc.
25 for artifact quality, shop skills, and craftsmanship.
25 for team work and group cooperation.
10 for attendance.
10 for making it to the finish line.
5 for the winner.
Total = 100
Assessment
25 for design work, drawings, models, originality etc.
25 for artifact quality, shop skills, and craftsmanship.
25 for team work and group cooperation.
10 for attendance.
10 for making it to the finish line.
5 for the winner.
Total = 100
