Cub Scout Pack 405

A. Width - Not to exceed 2 3/4 inches

B. Length - Not to exceed 7 inches

C. Weight - Not to exceed 5.0 ounces on scale accurate to 1/10 ounce.

D. Height - Not to exceed 3 inches

E. Center Rail Width Clearance – Must clear center guide rails, typically no less than 1-3/4 inches

minimum.

F. Bottom Clearance - No less than 3/8 inches from track surface. Fender flairs with less clearance are

acceptable as long as the center rail width clearance is the same in rule E. Weights are preferred to be

inset in the body or on top of the car to aid in a safe stop at the end of the track.

G. Wheelbase – All cars must have a wheel base no less than 4", with the two rear wheels being

positioned directly across the body from one another and the two front wheels being positioned directly

across the body from one another.

H. Front End – Depending upon the track, the front of the car may rest against a short starting pin. We

therefore require that the front bottom of the car which rests on the pin is no higher than 1" above the

track. The front end must be at least ½ inches wide in the middle.

The following items are PROHIBITED:

A. Springs

B. Starting devices or propellants

D. Liquids, wet paint, oil, sticky substance, or powders of any kind (other than axle lubrication)

F. Bearings, bushings, washers, sleeves, hubcaps or inserts attached to or in contact with the axle, body

or wheels.

G. Loose objects on car

H. Magnets

I. No part of any car or attachment to any car that is metal, pointed, sharp, and/or jagged may be capable

of contacting any part of the track.

Use only Official Scout Grand Prix wheels. All lettering, both inside and outside, must remain and be

visible. The fluting and other BSA markings on the outside wheel area must remain visible. Outer wheel

surface may be lightly sanded, shaved, or polished to remove surface imperfections and mold casting

burrs, but must not be reshaped in any way in an attempt to lighten the wheel, minimize tread contact or

alter aerodynamics. Tread surface must be flat and parallel to the wheel bore. Coning the hubs and truing

the inside edge is allowed. You may add material to the inside of the wheel to aid in balancing (glue,

fingernail polish, tape) of the wheel, but no material may be removed.

The following wheel

Modifications are PROHIBITED.

A. Rounding of wheel edges

B. Grooving, H-cutting or V-cutting

C. Altering of wheel profile

D. Narrowing the tread surface

E. Drilling sidewalls

F. Hollowing, sanding, or otherwise removing or modifying material from inside the wheel

G. Filling of any wheel surface with any type of material

There must be at least four wheels on the car, however, it is not required that all four wheels make

contact with the track surface. The two rear wheels and the two front wheels must be positioned directly

across the body from each another. Staggered wheelbases are not allowed.

Please note: There are after-market modified wheels that are LIGHTENED. This is usually done by

turning the wheels on a lathe and removing material from the inside of the wheel. These wheels are NOT

allowed and EASILY RECOGNIZED at inspection. Cars with these wheels will not be permitted to race.

Some polishing and/or modification is allowed as long as overall diameter is not reduced below .084

requirement.

Grooves are allowed; the depth of the groove(s) is not limited so long as the journal portion of the axle

(the part the wheel rides on) is no less than the stated minimum diameter.

Axles must not be connected to any device that mechanically alters rotation and spin.

Axles must be mounted into the wood sections of car. Drilled holes or slots can be used.

Each car must pass inspection by the Official Inspection Committee before it may compete. The

Inspectors will disqualify any car not meeting these rules. Any adult or scout may appeal the findings of

the Inspectors to the Race Committee Chairperson, whose decision is final. After acceptance only race

officials will handle the cars.

The drilling/removal of Lead(Pb) will NOT be allowed at the race venues or at check-in time due to the

toxicity of the material. All Lead(Pb) must be completely sealed and safe from all possible contact with

the youth. PLEASE avoid Lead(Pb) in cars this year! Weights are available for purchase at most hobby

shops.

Race officials may authorize repairs when damage is caused by collision with another vehicle or

object.The Cub Scout is in charge of making all car repairs. Guidance is allowed and encouraged. Ideally

repairs can be done before the next heat that the car is in starts. After the car is repaired Officials will run

the race again. If the car cannot be repaired before the next race starts, that race will also be delayed

until the end of the races.

GOOD SPORTSMANSHIP AND BEHAVIOR IS EXPECTED. Race Officials may ask anyone not

following this rule to leave.

Questions may be addressed to the Race Officials. The Race Officials may be contacted at

Trophies will be awarded to each den within the pack. Dens consist of Tigers, Wolves, Bears, Webelo I,

and Webelo II. Each den will receive a trophy for first, second and third place. An overall grand

champion trophy will be awarded for the fastest derby car in the Pack. A trophy will also be awarded for

the best design, which will be voted on by all scouts within the pack.

Initial vehicle inspection will take place on Tuesday, 18 January 2011, at 7:00 P.M. inside Rohwer

Elementary. Please bring the derby car to the school on this night for an initial inspection. You will then

have two days to complete any necessary adjustments to the derby car. The final inspection will then

take place at Rohwer Elementary on Thursday, 20 January 2011, at 7:00 P.M. inside the school. After

final inspection the vehicle will be confiscated by race officials and held until race day on Saturday, 22

January 2011, at 1:00 P.M. at Faith United Methodist Church located at 5310 S 182nd Ave.