I think YES, this is why:
Quote:
<R66> In addition to the items included in the KOP, pneumatic system items specifically permitted on 2011 FRC ROBOTS include the following items. All included items must be “off the shelf” COTS pneumatic devices rated by their manufacturers for working pressure of at least 125psi and burst pressure of 250psi, and used in their original, unaltered condition (except as required for assembly with other components).
<.....>
J. Pneumatic cylinders.
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So, this means: If the part is a "Pneumatic Cylinder",
AND it is rated for "working pressure of at least 125psi and burst pressure of 250psi",
it is allowed by these rules.
If you are still not sure:I think the best chance for an OFFICIAL answer is, have the team leader go to FIRST Q&A Forum (on the FIRST web site), mention the specific
cylinder part number, and ask.
Then you know absolutely for sure, yes or no.
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One alternative: Use a normal (double-acting) cylinder and use Latex Rubber Tubing to return the piston. Definitely OK.