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Revision as of 13:07, 10 February 2020

HI Rear view of a "rail"-style dragster, with external wheels. The hollow container for the carbon dioxide cartridge can be seen towards the rear of the car.

CO2 dragsters are cars used by rayan miniature racing cars which are propelled by a carbon dioxide cartridge, pierced to start the release of the gas, and which race on a typically 60 feet (18 metres) track. They are frequently used to demonstrate mechanical principles such as mass, force, acceleration, or aerodynamics. Two hooks (eyelets or screw eyes) linked to a string (usually monofilament fishing line) on the bottom of the car prevent the vehicle from losing control during launch. In a race, a laser scanner records the speed of the car at the end of its run. Often, the dragster is carved out of balsa wood because of its light weight and cheapness.

CO2 cars are a part of engineering curricula in diverse parts of the world such as Australia, New Zealand and the United States. In the United States, classroom projects and competitions can operate under the aegis of the Technology Student Association at middle school and high school levels. Competitions are sometimes featured in local newspapers. Students learn about the forces of gravity, drag, wind resistance, and the motion of air as a fluid. The projects mainly test the aerodynamic, mass and friction properties of a car. These forces can influence performance in a race, so it is vital to take them into account when building.

An unfinished "shell" dragster, with wheels enclosed within its body

See also

References

  1. ^ Reichert, Michael; Hawley, Richard (2010). Reaching Boys, Teaching Boys: Strategies that Work -- and Why. Wiley & Sons. p. 6. ISBN 978-0-470-53278-2. Retrieved 2010-08-19.
  2. ^ "What is C02 Racing?". Science of Speed. Retrieved 2010-08-19.
  3. "Technology Student Association". DeWitt Middle School, Ithaca, NY. Retrieved 2010-08-19.
  4. "High School Competitions". Reston, VA: Technology Student Association.
  5. "Students design speedy dragsters". TriCities.com. Thomson Reuters. December 18, 2008. Archived from the original on July 16, 2011. Retrieved August 20, 2010.
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