OFFICIAL PACK 405
- The Pinewood Derby is open
to all Pack 405 Cub Scouts.
- The primary goals of our
Pinewood Derby are:
o Enjoying the experience of
partners and boys working together as a team
o Gaining valuable skills in
using tools and materials safely
o Practicing and celebrating a
o Learning pride in workmanship
o Understanding how to follow
should be built by the Cub Scouts with some
- Cub Scouts learn best by
"doing", so it's important that the scout be actively
involved in all phases of the design and building
- Any technical assistance
should be fully explained to the Cub Scout so that he can
use that knowledge on future projects.
- The role of the adult
partner (Akela) should be as a guide and teacher.
When using tools, a "hands over hands" approach to the
teaching is best - the scout should hold the tool and your
hands hold his to guide him as he learns its use.
- Please remember to also
teach and use all appropriate safety procedures, including
proper use of safety equipment.
Cub Scouts are encouraged to participate,
regardless of any handicap. If the scout has
limitations that may affect his participation he may
appoint a deputy child of his same or approximate age to
assist if necessary. However, every scout should be
encouraged to enjoy participation up to his limits.
- Only the Cub Scout may
enter his car. This means that the Scout must be
physically present to enter his car into competition.
must be constructed from the parts contained in the
Official Grand Prix Pinewood Derby Kit that
was issued to you at our Pack meeting or which may be
purchased at the BSA Council Office. Materials from
the kit may be supplemented but not replaced.
car must have been built during the current year
(the school year
in which the Derby is held). Cars that have competed in a
previous year are not permitted.
only be ONE
race this year. Cars must comply with all
Pack 405 construction rules as set forth in these
"Ground Rules" and the "Race Car Specifications"
- Each scout may enter only one
car in each race. Several cars may be constructed but only
one may be registered and raced by the scout in each race.
car must pass inspection by the official Inspection
Committee before it may compete. If at
registration a car does not pass inspection, the scout
will be informed of the reason for failure and will be
given time within the weigh-in period to make any
necessary adjustments. Designated Pack Mechanics will be
on hand to assist scouts that require guidance.
the car cannot be brought into compliance with the
“Pack 405 Official Pinewood Race” rules then it may
not be raced, however it still may be
entered in the Design Competition.
- Safety violation thresholds
we be assessed on a case-by-case basis by the Inspection
- Appeals of Inspection
Committee decisions may be raised to the Race
Marshall. All rulings by
the Race Marshal are final.
- Once the car has passed
inspection and received its number sticker, the Race
Officials will place the scout's car on the Race Table.
Scouts will not have access to lubricate or otherwise
improve or adjust their car until all racing is
- After passing final
inspection the cars will not be re-inspected unless the
car is damaged in handling or during a race.
- All people other than
officials running the race must stay behind the barriers
at all times.
- Each heat will be announced
one at a time.
- The Race Starter will make
sure the cars are on the track properly and then start
each race heat.
- The car whose nose is over
the finish line first is the winner. The official Pack 405
automatic electronic scorer will determine the first-,
second-, third-, and fourth-place winners.
- When the results of each
heat are recorded the drivers will return to their seats
and the Starter will place the winning cars back onto the
Race Table in preparation for the next heat. When all
heats are over the cars will be returned to the scouts.
- If a car jumps the track
the race will be run again. If the same car jumps the
track a second time and does not interfere with its
neighboring car, the race will count. If the car
interferes with its neighboring car, at the discretion of
the Race Marshal the car will be eliminated from that heat
and given a "Did Not Finish" (DNF) time, and the race will
be run again.
- If a car becomes damaged and
can be repaired in a reasonable amount of time (a few
minutes), the race will be run again. If not, the damaged
car will be eliminated from that heat and given a DNF
Rewards and Recognition
- At car registration a
single ballot will be issued to each participant to allow
him to cast votes for each category in the Design
- The ballot will be marked
with the same number as the participant's registered car.
- The cars may be viewed at
the beginning of the event or at any time during the
competition. Participants will then mark their
choice for winner of each category by indicating the
number of the chosen car next to the category on the
- Participants may not
vote for their own car. Any categories with a
vote matching the participant's own car number will be
ignored, however all other categories that do not match
will be counted in the final tally.
- The ballots may be
deposited in the ballot box at the registration table at
any time during the event, however all ballots must be
deposited when the "Last Call For Ballots" is
- The votes will then be
tallied by the Race Committee and the results announced at
the Awards Ceremony at the end of all competition.
most important rewards in our Pinewood Derby
competition are partner/boy participation, sharing in
good sportsmanship, understanding how to follow rules
fairly and having good competitive fun with friends!
- Official Trophies will be
awarded to the first, second, third and fourth-place
finishers in the Pack 405 Pinewood Derby Race.
- Prizes will also be awarded
to the winner of each "Design" category. The design award categories are most
creative, sportiest, most colorful, and kid's
main body of the car must be comprised primarily of
the wood block from the Official Grand Prix Pinewood
Derby Kit. The
block may be cut down, hollowed out and/or supplemented
with other materials as long as such modifications do not
take the car out of compliance with the specifications
Width and Clearance
Weight and Appearance
maximum overall width (including wheels and axles)
must not exceed 2 3/4 (2.750) inches.
minimum width between the wheels must be 1 3/4 (1.750)
inches so the car
will clear the center guide strip on the track.
minimum clearance between the bottom of the car and
the track surface must be 3/8 (0.375) inches so
the car will clear the center guide strip on the track.
maximum overall length must not exceed 7 inches.
wheelbase (distance between the front and rear axles)
may not be changed from the kit body's distance of 4
1/4 (4.250) inches.
height of the car must not exceed 5 ¼ (5.250) inches so
the car will clear the electronic finish line at the
bottom of the track. This is measured from the
ground up with the car (wheels attached) sitting on a
flat level surface.
Wheels and Axles
must not exceed 5 ounces. The
reading of the official scale will be considered
final. The car may be hollowed out and built up to
the maximum weight by the addition of wood or metal only,
provided the material is securely built into the body or
firmly affixed to it. No liquids or loose materials of any
kind are permitted in or on the car.
- Details such as steering
wheel, driver, spoiler, decals, wings, painting and
interior details are permissible as long as these details
do not exceed the maximum length, width, height or weight
- Cars with wet paint will
not be accepted.
- The racecar must be fully
gravity powered and may not be constructed or treated in
such a way that the track's starting mechanism imparts
momentum to the car. (For instance, this provision
disqualifies cars with sticky substances on the front of
the car and protrusions that may catch on the starting
car body may have no moving parts, internal
or external, with the exception of the 4 rolling wheels as
supplied in the Official Grand Prix Pinewood Derby Kit.
and wheels must be only as provided in the Official
Grand Prix Pinewood Derby Kit.
- The car must be
freewheeling, with no starting device or other type of
- The car must not ride on
any type of springs.
may not be altered in any way except for polishing and
the axle dimensions may not be changed substantially. It
must be obvious to the judges that the official wheels and
the nails from the kit are being used.
- Wheel bearings, washers,
bushings, sleeves and hubcaps are prohibited.
- Wheels may be lightly
sanded to smooth out molding imperfections on the tread
area. This light sanding
is the only wheel modification allowed.
Beveling, narrowing, tapering, thin sanding, wafering
or lathe turning of the wheels is strictly prohibited.
Wheel treatment (hub and tread smoothing and
polishing) may not result in substantial removal of mass
or in any reduction in the tread width (track contact)
from the original kit wheels.
tread surface must be cylindrical and flat. Shaping
the tread surface into a crown is not permitted.
- The words "Official
Made in U.S.A." and/or any other lettering on the
wheels must remain intact and clearly visible to the
original "tread marks" on the edge of the wheel's face
must be intact, i.e. apparent to the
- Axles must be mounted in the slots provided in
the wood block from the Official Grand Prix Pinewood Derby
- Wheels must be mounted such
that they are perpendicular to the ground when the car
is sitting on a flat level surface and ride on the flat
wheel tread. Purposeful tilting or angling
of the wheels such that the car rides on the wheel edges
is not permitted.
dry lubricants such as graphite or powdered Teflon
"white lube" will be allowed for
lubricating the wheels and axles. No liquid lubrication is
- Lubrication will not be
allowed after the car has been weighed in or during the