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3.1i) Motive power for the drive and/or weapons may be electric, internal combustion (IC), hydraulic, or pneumatic.

ii) A combination of engines - e.g. electric drive and IC weapons, an IC engine driving a hydraulic pump - is allowed.

iii) Other types of engines may be considered, but contact the Organizers before starting work.

3.1.2i) All Robots must be fitted with on-off switches that operate both radio receiver and drive/weapon circuits - in practice totally removing all power from the Robot.

ii) If there is more than one switch, these must be positioned adjacent to one another.

iii) The main power switch MUST be of the type with a removable link, which must NOT be in place unless the Robot is in the arena or is being worked on.  (See Technical Sheet No. 4.)

iv) The switch/link must be positioned in a visible part of the Robot’s bodywork, fitted away from any operating weaponry or drive, and this position must be clearly marked.

v) The switch/link may be fitted under a cover, but the cover must be able to be opened without the use of tools.

vi) If the Robot uses an IC Engine(s), the "Power" switch can take the form of a clearly labeled "Kill" switch.

3.1.3If the proposed Robot design (e.g. a completely revolving body) could make conforming to some or all of Regulations 3.1.2 impractical, contact the Organizers before starting work.

3.2 Electric

3.2.1. Working voltages must not exceed 36V DC (mean voltage) or 36V RMS AC.

3.2.2. All power connections (connections carrying a heavy current) must be of an adequate grade and adequately insulated.  Cables must be routed to minimize the chances of being cut.

3.2.3. Batteries must be totally sealed and not contain free-flowing liquid.  (Whether electrolyte or otherwise.)

3.2.4. Battery connections must be adequately insulated.

3.3 IC Engines

3.3.1 Fuel capacity is limited to 17floz (500ml).

3.3.2 i) Separate fuel tanks must be made of an acceptable type of plastic (e.g. nylon).

ii) If the tank is integral to the engine assembly and is metal, the cap must be plastic or a plastic "pop off" seal fitted.

iii) The tank must be adequately protected from puncture.

3.3.3 All fuel lines must be of the correct type and held with the correct type of fittings.  They must be routed to minimize the chances of being cut.

3.3.4 A return spring must be fitted to the throttle of all IC engines to return the throttle to "idle" or "off" in the case of servo breakage or failure.  (This is in conjunction with any failsafes.)

US Rules&Regs, 1/3/01

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