Research

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Research Design CO2 Dragster
Sherry Roses
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Basic Body Shapes

• Rail Cars
• Shell Cars
• Show Cars
• Typical Cars

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RAIL CARS

• ProsEasy to buildRail reduces weight
• ConsThin rail breaks easilyShape creates
  dragExterior wheels are slower
  

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SHELL CARS

• ProsLow dragCapable of high speedsCut easily
  on milling machine
  
• ConsSpecial wheels clipsLook similarHollow
  by hand
  

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SHOW CARS

• ProsStunning designAllows for
  creativityAwesome!
  
• ConsNot the best racersFragile spots breaks
  easilyDifficult to build
  

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TYPICAL CARS

• ProsBuilt to raceAll skills abilitiesAnyone
  can make oneExternal/Internal wheels
  
• ConsMay not be competitive

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CO2 Engineering

• Mass
• Drag
• Friction
• Design Specifications

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MASS The Tradeoffs

• AdvantageDragsters with less mass go faster
• DisadvantageLess mass less stable and less
  durable

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DRAG The Tradeoffs

• AdvantageAerodynamic dragsters go faster
• DisadvantageAerodynamic (clean cars) are more
  difficult to build

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FRICTION The Tradeoffs

• AdvantageFriction filled car easy to build and
  more durable
  
• DisadvantageReducing friction takes time,
  effort patience

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DESIGN SPECS The Tradeoffs

• AdvantageDragsters meeting specs are safe and
  can compete fairly
  
• DisadvantageMaybe faster but always DQed if
  specs arent met

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AssignmentTHUMBNAILS
On the provided sheet, sketch at least 8
thumbnails using only a lead pencil!