QA 283 declared that a Falcon 500 is not a pneumatic device:
Q: We are looking for clarification to R79. Are we allowed to use an off-board compressor and tank system to cool motors? We would only plug the tubes from our off-board system into the ports on our Falcon 500s and release the air to cool them between matches
asked a day ago by FRC 3175
A:Provided that one or more set screw plugs are removed from the Falcon 500, the device is not considered a pneumatic device as it is not a sealed system capable of maintaining pressure. R79 and other pneumatic rules do not apply in this case (though other safety and event rules may apply).
How does this ruling fit into the idea of plumbing solenoid exhaust through Falcons? The solenoid blocks from VEX have threaded fittings for exhaust, so yo could attach tubing to them. Since the Falcon is not a pneumatic device, could it be legal to connect a random piece of metal (which happens to be a fitting) into the exhaust port of a solenoid then direct this exhaust, “non-pneumatic” air through the non-pneumatic device of a Falcon as it is vented to the atmosphere? Similarly, could the output of a pressure vent plug be directed through a set of Falcons to cool them, as long they are plumbed in parallel (or is series even legal). Could you apply this same logic to say that you can install a solenoid which, legally, just vents to the atmosphere (although it actually goes through a Falcon)?