2016 Cubmobile Construction Specifications and Requirements

2016 Cubmobile
Construction Specifications and Requirements
Classifications:
The 2016 Cubmobile Derby will only consist of the STOCK
classification
STOCK – The Stock Cubmobile classification will have cars that
are built in compliance with the guidelines published in the cub
scout handbook. In addition to meeting the specifications in the
handbook, all Stock cubmobiles will race with standard wheels and
axles which will be obtained through the Cub Scout Pack.
•No more than 3 drivers per car.
•All cars must be not pre registered
MODIFIED – There will be no modified class
Registration and Inspection:
On the day of the Derby all entrants will present their Cubmobile for
inspection, at which time they will indicate which classification they
intend to enter. The inspection will be performed to ensure the
entrant meets the specifications for the entry class, and that all
safety requirements are met. The tolerance for meeting
dimensional requirements in both classifications will be +/- 1 inch.
A car that has been entered in the Stock classification that does not
meet all the requirements will not be allowed. If you have any
questions regarding your Cubmobile design compliance, it is
suggested that you contact Andrea Arias (pack444.bsa@gmail.com) or
Jeff Dunlap (jdunlap@accuride.com), well before Derby day so that
you may have an opportunity to correct any problems.
2016 Cubmobile
Construction Specifications and Requirements
STOCK Cubmobile Parts and Specifications:
• A standard hardware package for Stock Cubmobile construction will be made
available by your pack. The Stock hardware package includes standard wheels and four
lag screws that are to be used for axles.
• Wheels MUST be standard product provided by the cub scout pack as part of Stock
Cubmobile hardware package.
• Axles MUST be standard product provided by the cub scout pack as part of Stock
Cubmobile hardware package. Figure 1 illustrates two acceptable configurations for
axle construction
• Figure 2 provides an illustration of overall design, building materials and hardware.
All dimensions should be considered specifications within +/- 1 inch
• The car frame is made from 2 x 4 construction lumber.
• The overall length of the car frame is 52 inches.
• The wheelbase is 48 inches
• Use roundhead ½ inch bolts or wood screws for frame construction.
• Do NOT use nails for frame constructi on.
• Cars must be equipped with adequat e safety belt securely fastened to the frame of
the car.
• Steering is done with feet, placed on t he front axle, and by the hands holding a rope
fastened to the front axle. No other stee ring devices are permitted.
• Cars must be equipped with a hand b rake mounted to the frame.
• Two blocks must be fastened to the fr ont axle within ½ inch on either side of the
center frame to limit the turning radius
• No additional components can be add ed for ballast. All parts must be integral to the
construction of the Cubmobile.
• Stabilizer bars from the frame to the rear axle are allowed (no greater than 2x2 and
must be wood)
Standard Wheels
obtained from
Harbor Freight
*Please see changes to axle on specs page
Figure 2 – Design and Construction Standards