How to Design a Pinewood Derby Car - Rockin Mama™ (2024)

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{This post is sponsored by the Boy Scouts of America, however, all opinions remain solely that of the author}

As a young girl, my father and I would spend several weeks transforming a block of pine into a sleek racing car. Our school hosted a pinewood derby each Spring and it still remains one of the most memorable things my father and I did together during my childhood. He always got very passionate about our cars, tinkering with designs and strategizing over where to place the weights for speed. When my son joined our local Cub Scout pack and we started planning for his first Pinewood Derby, I pulled out the cars my father and I worked on together which was exciting and nostalgic for both of us.

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The first Pinewood Derby was held by a Cub Scout pack in Los Angeles, California and has now become a tradition. Each Spring, the boys are given a Pinewood Derby Car Kit which includes a block of pine wood, four plastic wheels and four nails.

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Pinewood Derby Rules

  • Each scout must use all of the pieces included in the Pinewood Derby Car Kit.
  • The car must not exceed 5 ounces in weight
  • The car must not exceed 2 3/4 in width and 7 inches in length and fit on the track
  • Scouts may use graphite as lubricant

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How to Design a Pinewood Derby Car

Apart from the rules listed above, scouts are encouraged to use their creativity to design and build their very own car. Having constructed Pinewood Derby Cars with my father and now as a parent, here are my best tips for building a Pinewood Derby Car.

  1. Plan out the design of your car. Various designs can include the traditional racing car, a replicaof a real-life car or truck, or a car/truck used in a TV or film (my son once drew inspiration from Harry Potter?).
  2. Whittle the block of wood with a bandsaw. We found that this was less time-consuming then whittling with a hand knife or hand saw.
  3. Consider using weights to bring the car to the maximum allowable 5 ounces. Coins, lead, and steel are common weights added to the Pinewood Derby Car and can be glued into the bottom of the vehicle.
  4. Finish your design with paint and decals. Scouts can create their own unique design or draw inspiration from their favorite real or imagined vehicles.

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4Lessons Scouts Will Learn From Building a Pinewood Derby Car

My father and I shared many experiences together. But the time we spent creating my Pinewood Derby Car each year was particularly meaningful. Boys, particularly Cub Scouts, still require significant assistance with designing and building their car. Here are some of the things I was able to teach my son as we designed his Pinewood Derby Car.

  1. Planning is essential. Each year, we are given the Pinewood Derby Car Kit several weeks ahead of the pack race. This particular activity requires planning and cannot easily be completed in one day. This is a great way to show scouts that building a car that looks nice and races well takes time, patience and creativity.
  2. There is a science to the fastest car. Because the car is propelled by gravity, it is important to consider the science involved with crafting a car that races to win. While crafting the car, parents can talk to their kids about concepts like friction, drag, energy and inertia and how those factors impact the speed of the car.
  3. Creativity is celebrated. In addition to awarding trophies for the fastest cars, our pack also awards scouts for their creativity. My son won “most realistic car” last year and he was incredibly proud of the fact that his design won him that award. Building a Pinewood Derby Car should be both educational and fun. Scouts should be encouraged to use their imagination to design their own unique vehicle.
  4. Winning isn’t everything. My son learned very early on that he is not going to excel at everything. Crafting a Pinewood Derby Car can provide moments for parents to talk to their children about sportsmanship. I like to celebrate my son’s creativity and efforts. We also talk about supporting other scouts and their designs, even when we don’t win.

In the midst of homework, sports, and life, I appreciate the opportunity to spend dedicated time building a Pinewood Derby Car with my son each year. These moments of brainstorming and creating are unique. There is great satisfaction and a sense of “pride” that comes from my son’s completed Pinewood Derby masterpiece.

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The annual Pinewood Derby is just one of the engaging activities that Cub Scouts participate throughout the year. Through our pack, we’ve camped at our local lake, learned how to use a whittling knife, put together love lunches for the homeless, spent the night on the USS Midway aircraft carrier, and watched a local air show. Cub Scouts take a break during the summer, however, the Boy Scouts of America hosts a number of Cub Scout Day Camps which includenature, sports, aquatics, and crafts.

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To find a local Cub Scout Pack, visit BSA.org.

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Caryn Bailey

Caryn is a NICU nurse by day, blogger by night and mom 24/7. She savors the warm Southern California sun and loves to travel, shopping, baking, reading and frequenting her local tea room. Caryn created the column Lavishly Green for Peekaboo Picks Magazine to share her best tips for going green in style, she is the Former editor for Family Review Network, former OC Family Magazine online contributor, former Orange County Moms Blog contributor, former Evenflo Savvy Parent contributor, former member of the Totsy Advisory Board and former freelance writer for CBS Los Angeles.

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How to Design a Pinewood Derby Car - Rockin Mama™ (2024)

FAQs

What is the best design for a Pinewood Derby car? ›

The wedge is a classic and probably the easiest shape (besides keeping a block) to build your Pinewood Derby car. The Wedge is the foundation of many cool car designs, and it is designed to be aerodynamic and is a one-cut wonder.

What shape should my Pinewood Derby car be? ›

It's okay to get creative with the look and design of your car. On the flip side of that, if your main goal is speed, you'll need to keep it simple. To go fast, it's all about aerodynamics, and the best shape is a simple wedge.

What is the science behind Pinewood Derby cars? ›

A pinewood derby car converts gravitational potential energy to translational kinetic energy (and resulting velocity), rotational kinetic energy in the spinning wheels, and heat from friction.

What is the fastest shape in Pinewood Derby? ›

No need to get crazy here, but simply having a wedge-shaped Pinewood Derby car instead of the standard block out of the box will equal a 1.4-car advantage at the finish line.

Should I bake my Pinewood Derby block? ›

Baking your Pinewood Derby wooden block helps to remove the moisture so that you have more wiggle room to add extra weight at the end. Remember, every little bit of weight in the right place makes a difference! Bake it in the oven at 250° for about 2 hours.

How do I make my Pinewood Derby shiny? ›

Use a final gloss clear paint coat to give your car an extra shine. Some people use car wax but clear paint gives better results. You will get better results if you give your car several light coats of paint rather than one or two thick coats. Sand your car lightly after the first coat of paint dries.

Should I glue Pinewood Derby axles? ›

Slide the axles and wheels onto the car and glue into place. Use an epoxy or nonresin glue, and make sure you don't get any on the surface of the axle where the wheel rides.

Do heavier Pinewood Derby cars go faster? ›

Aerodynamics have little effect in such a short race, but weight does and putting the weight at the back of the car will make your car faster on the flat of the track. Tungsten weights, in most cases, are best because of their high density. Lube the car at the body/wheel friction point.

Can Pinewood Derby car be less than 7? ›

Can a pinewood derby car be shorter than 7 inches? Yes, you can make your car shorter but it is not recommended. A shorter car will have a lower center of mass at the start so it will have less energy to convert into speed when going down the track.

Can you put weights on the bottom of a Pinewood Derby car? ›

Therefore, many builders target a car weight that is slightly less than 5 ounces. These builders have a margin for error and add a little bit of weight if necessary at the weigh-‐in using a "weight port" (hole drilled) on the bottom of the car.

Why bend Pinewood Derby axles? ›

Bent axles can be used to: Reduce friction. Align the car to run straight. Adjust the car to use the rail riding technique.

How to make the most aerodynamic Pinewood Derby car? ›

Crafting the Design: Outline your Pinewood Derby car on paper, cut it out, and affix it to the wood block. Remember, a rectangular car is not an aerodynamic design. The most basic aerodynamic design is a simple wedge. If you don't have time to design a complex car, a wedge will work just fine.

Where is the best place to put weight on a Pinewood Derby car? ›

PUT MOST OF THE WEIGHT IN THE BACK

Science says the heaviest part of your car should be about 1 inch in front of the rear axle. The idea is that the farther back the weight is, the more potential energy you have because your center of mass is higher up on the track.

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