Quote:
Energy used by FIRST Robotics Competition robots, i.e., stored at the start of a match, must come soley from:
- Electrical energy derived from the onboard 12Vdc battery;
- Storage achieved by deformation of springs or latex tubing; no more than 20ft-lbs (27.116 newton-meters aka joules) energy total stored at the start of a match;
- Compressed air stored in the pneumatic system, but only supplied by the Pump included in the kit and stored at a maximum pressure of 120 PSI;
- A change in teh altitude of the device's center of gravity.
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I personally don't think rule M11 leaves much room for interpretation when it comes to springs, but then again I would venture to say that the "spirit" of the rule is similair to Joe Johnson's interpretation.