What is considered a fast Pinewood Derby time?
Pinewood Derby Results. The average times with just weight added was 3.288 seconds. There was 0.188 seconds between the fastest and slowest car, about 23 inches. The average time was 2.994 seconds, about 44 inches faster than without graphite (0.353 seconds).
Do heavier Pinewood Derby cars go faster?
Weight and Placement in Pinewood Derby Cars. One of the most fundamental rules in the Pinewood Derby is the maximum weight limit of 5.000 ounces, or 141.643 grams. Simple physical principles dictate that a heavier car will run faster.
Are Bent Axles legal in Pinewood Derby?
No. Bent axles are not allowed in either racing class.
Should I bake my Pinewood Derby block?
Should I bake the pinewood derby block? The short answer is no, do not bake the block. The idea behind baking the block is to remove moisture which will make the block lighter. You can then add more weight to the back of the car.
Can a Pinewood Derby car have 3 wheels?
Rules vary from pack to pack, so make sure to check your pack’s Pinewood Derby rules to make sure three wheelers are allowed in your race. — Extend the Wheelbase: The front and rear wheels should be as far apart as possible.
Where is the best place to put your weights on a Pinewood Derby car?
Weight should be placed towards the rear of the car. You can drill the weight holes in the bottom, side or rear of the car as shown in these examples. Stay at least 1/8″ away from the axle slots.
Does aerodynamics matter in Pinewood Derby?
Yes, there is air resistance with these pine derby cars. And yes, for that effect the mass of the car does indeed matter.
What’s the most aerodynamic shape?
For speeds lower than the speed of sound, the most aerodynamically efficient shape is the teardrop. The teardrop has a rounded nose that tapers as it moves backward, forming a narrow, yet rounded tail, which gradually brings the air around the object back together instead of creating eddy currents.
How much weight does paint add to Pinewood Derby car?
Paint only adds a few grams (hundredths of a ounce). We generally weight up to 4.9 oz and then do the last weight adjustment at check-in.
Can you put weights on the bottom of a Pinewood Derby car?
The weight should not extend past the rear of the car. Glue bottom weights to the bottom of the block to bring the total weight (including wheels and axles) to 5 oz. Install some of the weight behind the rear axle and the rest in front of the axle. The weight can be broken apart with pliers.
Why does my Pinewood Derby car wobble?
Pinewood Derby Wheels Wobble are a very common issue. Derby wheels are made with an injection molding process. Because they are not machined from raw material, flaws such as concentricity (wobble) will cause a wheel to wobble because the bore is not aligned with the outer diameter.
How much does a Pinewood Derby car block weigh?
The official Pinewood Derby car weighs about 3.5 ounces without any modifications. The wooden block is about 3.3 ounces, and the wheels and axles add about 0.2 ounces.
Is Pinewood Derby only for Cub Scouts?
Pinewood derbies are often run by packs of the Cub Scouts program. With the help of adults, Scouts build their own unpowered, unmanned miniature cars from wood, usually from kits containing a block of pine wood, plastic wheels, and metal axles. Each derby has slightly different rules for making and racing their cars.
How much does it cost to bend a Pinewood Derby axle?
We recommend installing axles with a 1.5° bend for the front of the car and 2.5° bend for the rear. The axles heads are marked in the direction of the bend. Install the axles with the mark straight up. The alignment procedure requires turning the axles while they are in the car slot.
How much does a pinewood derby track cost?
| Track | Description | Price |
|---|---|---|
| 242 | 2-Lane 42ft. Track | $579.00 |
| 249 | 2-Lane 49ft. Track | $653.00 |
| 335 | 3-Lane 35ft. Track | $708.00 |
| 342 | 3-Lane 42ft. Track | $820.00 |