since the club is no longer providing a means for competitors and suppliers to get a binding Court of Appeals compliance opinion on matters of interest, those with questions are left to go it alone or seek qualified opinion(s) from the community accepting the associated risk with that approach. to that end I'm seeking qualified opinion(s) traceable to the GCR on the very specific and limited question:
are brake ducts compliant with the GCR as currently written?
note: it's not being asked if brake ducts have been used for the last 50 years OR if brake ducts are required with the hardware used by most competitors on most days at most tracks in the US OR if they're a good thing or bad thing OR ugly OR pretty Or anything else. very simply: are brake ducts compliant with the GCR as currently written?
I believe brake ducts are compliant with the GCR as currently written for these reasons:
per section 8 of the GCR, brakes are unrestricted with two noted restrictions AND the global restrictions on materials from section 2.
8. Brakes
Unrestricted, except:
a. Maximum of 2 pistons allowed per caliper. Calipers must be ferrous or aluminum alloy.
b. Brake rotors are restricted to ferrous material.
2. General Construction Restrictions
NOTE: Contained herein are the 1986 Formula F chassis construction requirements, revised January 1, 2013. All new Formula Continental and Formula F cars are to be built to these specifications. Any class-specific differences are stated explicitly. For cars registered prior to January 1, 1986, see section B.21. The use of carbon fiber and/or Kevlar reinforcement, titanium, beryllium, metal matrix composites, ceramics, high
strength composites and similar materials is prohibited unless specifically permitted. The use of the word “unrestricted” in any section does not indicate the allowance of these prohibited materials. The use of non-metal materials for seals, bearing and bearing liners, thread locking systems, windscreens, mirrors, instruments, wiring, electronic systems, electrical systems, hydraulic and oil and cooling systems, etc, are permitted unless specifically restricted.
Fuel Capacity: Maximum capacity 41 liters (10.83 gallons)
Refer to the Formula F and Formula Continental Dimensions Table for
general dimensional limitations.
since brakes by definition are NOT chassis, bodywork, aerodynamic aids, suspension, steering, wheels, or engines, none of the restrictions from those paragraphs are applicable. "brakes" are not defined in Appendix F. Technical Glossary
Appendix F. Technical Glossary
Brake Light – A signaling light mounted on the rear of the car, which may
be actuated only by driver braking actions.
Brake Lining/Pad – Replaceable friction material which accomplishes
braking action by making rubbing contact with the brake drum or rotor.
Brake Rotor – The disc component of a braking system, which is attached
to a wheel hub and provides a friction surface for braking actions.
Brake Rotor Hat – The integral part of a brake rotor or a separate component
that locates and provides attachment for the brake rotor to the hub.
Braking System – A system, including hydraulic and mechanical components,
which allows the driver to reduce the velocity of a car.
duct(s) to acquire, meter, manage, and exhaust air for cooling brakes easily falls under the umbrella of mechanical components even if the more restrictive definition of "braking system" were to be used in lieu of the much broader undefined term "brakes".
Art
artesmith@earthlink.net
are brake ducts compliant with the GCR as currently written?
note: it's not being asked if brake ducts have been used for the last 50 years OR if brake ducts are required with the hardware used by most competitors on most days at most tracks in the US OR if they're a good thing or bad thing OR ugly OR pretty Or anything else. very simply: are brake ducts compliant with the GCR as currently written?
I believe brake ducts are compliant with the GCR as currently written for these reasons:
per section 8 of the GCR, brakes are unrestricted with two noted restrictions AND the global restrictions on materials from section 2.
8. Brakes
Unrestricted, except:
a. Maximum of 2 pistons allowed per caliper. Calipers must be ferrous or aluminum alloy.
b. Brake rotors are restricted to ferrous material.
2. General Construction Restrictions
NOTE: Contained herein are the 1986 Formula F chassis construction requirements, revised January 1, 2013. All new Formula Continental and Formula F cars are to be built to these specifications. Any class-specific differences are stated explicitly. For cars registered prior to January 1, 1986, see section B.21. The use of carbon fiber and/or Kevlar reinforcement, titanium, beryllium, metal matrix composites, ceramics, high
strength composites and similar materials is prohibited unless specifically permitted. The use of the word “unrestricted” in any section does not indicate the allowance of these prohibited materials. The use of non-metal materials for seals, bearing and bearing liners, thread locking systems, windscreens, mirrors, instruments, wiring, electronic systems, electrical systems, hydraulic and oil and cooling systems, etc, are permitted unless specifically restricted.
Fuel Capacity: Maximum capacity 41 liters (10.83 gallons)
Refer to the Formula F and Formula Continental Dimensions Table for
general dimensional limitations.
since brakes by definition are NOT chassis, bodywork, aerodynamic aids, suspension, steering, wheels, or engines, none of the restrictions from those paragraphs are applicable. "brakes" are not defined in Appendix F. Technical Glossary
Appendix F. Technical Glossary
Brake Light – A signaling light mounted on the rear of the car, which may
be actuated only by driver braking actions.
Brake Lining/Pad – Replaceable friction material which accomplishes
braking action by making rubbing contact with the brake drum or rotor.
Brake Rotor – The disc component of a braking system, which is attached
to a wheel hub and provides a friction surface for braking actions.
Brake Rotor Hat – The integral part of a brake rotor or a separate component
that locates and provides attachment for the brake rotor to the hub.
Braking System – A system, including hydraulic and mechanical components,
which allows the driver to reduce the velocity of a car.
duct(s) to acquire, meter, manage, and exhaust air for cooling brakes easily falls under the umbrella of mechanical components even if the more restrictive definition of "braking system" were to be used in lieu of the much broader undefined term "brakes".
Art
artesmith@earthlink.net
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