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Rubberta

Race Order	Entry #	Driver Name	Car Name	Mass (grams)	Length (inches)	Width (inches)	Height (inches)	Distance Traveled (feet)	Running Time (seconds)
14	45	Sharon Harriman	Rubberta	58	21	4.75	4.75	4.83	1.68

Balloon car designer Sharon Harriman writes:

• Design approach taken - explain how it worked.

  The two balloons were cut into strips, tied together, stretched out and attached to fishing line, attached to a fly-wheel, attached to the driving wheels (back) of the vehicle. The rubber balloon band was twisted and then released to provide power to turn the wheels.

• Materials of construction (mention unique parts you used or fabricated)

  balsa wood frame and wheels

• Lessons learned (what you'd do differently next time)

  Create some sort of friction on the wheels (possibly by stretching a rubber band around each back wheel). The vehicle would have traveled much further if the wheels had not spun around without traction at the beginning of the run.

• Anything else you'd like to add

  It was fun. Thanks for providing the opportunity for all of us to participate....Looking forward to next year.

MB 1/9/99