C02 Dragsters of the past: I couldn't find much info on Dragsters back then, so I will go with what I have. Back then, C02 dragsters were designed whe people wanted to make toy cars that were only controlled by the forces of earth like gravity, friction, actelleration ect. They started off with ramp like creations and what you see in the picture. Sadly though, thats all I could find. Throught the years C02 dragsters have been made faster and faster by their designs.
C02 Dragsters of the Present Day: C02 dragsters today come in many different types. Like Normal, Rail, Shell, Model, and show but they are all made for the same purpose. To be a good dragster. People know to have a smooth top and it slowly rises up towards the back to allow wind to blow past in easily to make less friction. The weight needs to be as little as possible, the aredynamics needs to be fantastic, and rolling resistance needs to be minimal.
C02 Dragsters of the Future: Like the past, there is not much info on this because if someone has an idea for a dragster, they can easily make it with today's technology and science. But I believe that in the future, there wil be more thought on how to specifically design dragsters to make them more faster and versetile. I also think that people in the future will focus on wind resistance more than anything for making new cars, but it seems like poeple make dragsters for all disadvantages.
Specifications: Each race has requirements that each dragster must reach, each one must not excel, and each one cannot have. They usually have a minimum and maximum weight, size of body, # of axles, and size of wheels. They will also have limitations to what you can use or add like pre made kits or dragsters, no rubber tires, or no add on parts. I will have a list of the details of the race we are doing in here.
Areadinamics: The areadinamics of a dragster needs to be good to be able to pick up speed and keep it. These include the shape of the body, size of wheels, and the center of mass. There are a lot more but I can't name them all because there are so many of them. If the areadinamics is good, your dragster will have a lot of speed starting out in the race and keep it all the way to the end.
Weight: This is tecnally also a specification, but my teacher told me to have it in a whole other section, so ok. Weight affects the speed and acceleration of the dragster. Having too much weight will result in the dragster not keeping its speed and too little wieght will make it brake when it is stopped at the end of the track, which is obviously a discuolification.
Rolling Friction: This is something most people ROLL OVER! HA! GET IT? LIKE A WHEEL ROLLING? Ok, ill stop. Rolling resistance is something most people don't pay attention to because they think it doesnt help much, maybe at all. But actually having good rolling resistance will result in your dragster going faster. To increase the resistance of your dragster, basiclly make sure not to accidentally make the axle for the wheels tilted, so make it straight. You can also do an interesting strategy which is proven, but makes sense when you think about it. If you lift one wheel off the ground, it will go faster. Right? It will cause the dragster to have more resistance by moving the friction and moving it to your kinetic energy. Its not proven though, but makes sense.
Types of Drag Racers
Rail Dragster: A rail dragster is a really weird looking one, but is decent in competition. They are the most common made dragster made and have a narrow rail down the middle, have external wheels, and are usually low to the ground in the front and get higher in the back. The pros are that is easy to build and can get great acceleration. The cons though out weigh it. The thin rail has a high chance of breaking and the wheels and body shape make it have terrible aredynamics. It does best when put into a straight drag race with no bumps.
Show Dragster: These dragsters live up to their names. They look amazing! They have a lot of detail and also is very appealing to the eyes. The pros are they show the creativity and work by the builder and are just plain cool to look at. The cons however, make it the way it is. They are usually fragile, use special parts that may not be available, and usually require specific tools for making it. This makes them way to hard to be made by average students like me and besides, they are mostly just plain terrible in overall racing. Obviously you don't see any of these in tournements.
Shell Dragster: These dragsters are made for pure speed and is the most used car in tournements nationally. They get their name from their round shell like body. Their wheels are made inside of the body and the inside is hollow. The pros are it has very low drag aredinamic shape, can easily reach high speeds, and is a great use of programs like CAD and CNC. But the programs start us off with our biggest con. Its round shape makes it very very hard to be made by hand and therfore requires a building program to be made like CAD and CNC. As well as the round body and hollow shell make it hard to build it for students.
Model Dragster: This type of dragster looks, well, it is modeled from real cars or automobiles. They have much detail like Show dragsters and have the same properties as well. There pros are the attention of the builders creativity and being really cool looking. The cons are that they are not made for racing so they have very low acceleration, they are hard to build, and require materials that are hard to come by. These are also not seen much at tournements.
Normal Dragster: This type of dragster is basiclly anything that is considered a dragster that doesnt fit into one of the other 4 catigories. These cars are made very commonly because they show the creativity of the designer and can be made into what the builder wants. They all have specific pros and cons but they aren't commonly seen in tournements because of there unkown designs in certain cases.