They can compete with their classmates and other students within nz and australia. The goal of the unit is to allow students apply concepts from physics with real world application. This website helped me with the criteria like light weight. Aerodynamics is the study of how air flows over and around an object.
Students will use problemsolving skills to design and build a co2 dragster. A free powerpoint ppt presentation displayed as a flash slide show on id. Co2 car information although co2 cars are raced 2 at a time like fuel dragsters they ride differently. Downforce is the same as the lift experienced by the airplane wings, only it acts to press down, instead of lifting up the average street car creates lift because the car body shape itself generates a low pressure area above itself basic rules of fluid dynamics. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. In fact all three of these designs use thin wheels in the front and thick wheels in the back. Presti northport middle school technology slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The kind of streamline that you want for your dragster is one that has as much laminar flow as possible and as little turbulent flow as possible. Furthermore, the students will also learn new skills and techniques involved in the construction of the. The second design is more curved and has a steeper slope at the front. Students will follow safety rules for hand and power tools while working in the tech lab. When the cartridge is placed into your car and a hole is poked into one end of the cartridge, the compressed gas rapidly escapes out of the hole.
The following video is of the co2 dragters at bonneville high. Understanding create a racing vehical propelled by a canister of compressed co2 gas. My co2 car best conforms to the rail car design most typical of studentmade dragsters. The design portion will revolve around sketching and drafting using the computer program canvas 9. Aerodynamics the study of how solid objects displace fluid air and other gases.
The students will then run race their cars on a 60 foot raceway. Eligibility entries are limited to one 1 individuallyproduced dragster per chapter and five 5 entries per chapter. Make one top cut and one side cut to your dragster body. List the proper sequence for shaping the co2 dragster.
The purpose of this introduction is to get students to base their thinking on fast rather than dragster in their design. A standardsbased, cloudbased virtual modeling stem application that guides students through an engaging, realistic co2 dragster development process capped by a very cool virtual race all before building their actual racers a 3d model is literally developed in minutes. Run on the same principle that propels rocket or jet powered land speed record vehicles. They will test for wind drag, measure the weight of their cars. However, i used some aspects of shell and show cars to make the design more aerodynamic and aesthetically pleasing.
These are the co2 dragster designs created by the drafting students at bonneville high. Co2 cars west windsorplainsboro regional school district. Define explore our car had to meet certain criteria to be eligible to participate in the race some of these regulations included weight, length, and wheel diameter as we created our co2 car, we were careful to follow these guidelines in order to win the competition, we. Co2 dragster design thinking process and manufacturing 1. The gas escaping from the co2 cartridge in the car. This is a series of videos used to train one how to design a co2 dragster used in the technology student association dragster design competition. The 3d solidworks model of the co2 dragster will be provided to students in the class and in turn they will start learning camworks from an existing model. Design requirements see co2 dragster rubric follow specifications for co2 dragsters 10. The basic shape of the dragster has a thin rail connecting the front and. A minimum of 3mm thickness around the entire power plant hole must be maintained on the dragster for safety. Then dips down towards the back and goes back up in. In this unit you will learn how to design, build and race your own dragster. Design and build the quickest and most aerodynamic co2 dragster possible.
Streamline the streamline of an object means the pattern of airflow around an object. The video gives students a good idea of what they will be designing, only at a. As an object moves through the air, it is met with air resistance as speeds increase. This design for a dragster miniature has wheels that are externally placed and an extremely narrow chassis. Co2 dragster kits, parts, and accessories whitebox.
Design a vehicle to the specifications given to travel a distance of 20m in the fastest time possible using the power provided by a single standard co2 cartridge. Dragster definition is a vehicle built or modified for use in a drag race. Introduction one of the most important considerations when designing a vehicle is aerodynamics. In this unit you will be challenged to design, build, and race your own co2 powered dragster. Which allows the air to travel over the surface easily. Co2 dragsters technology teaching blink and you will. Research will consist of looking at other co2 cars and ideas. Students are given the task of creating a co2 car out of a block of basswood. This annual stem event allows ninth grade students from the boise school district the opportunity to design, build and compete with the top co2. The gas will continue to escape until the pressure inside the cartridge is the same as the pressure outside the cartridge. Like pinewood derby cars, the basic components for co2 dragsters come in affordable kits that can be purchased at hobby shops or online.
Templates in powerpoint 2016 for mac can help you design interesting, compelling, and professionallooking presentations. Mark where the axle holes will be and where the co2 hole is. The website says with less weight, the car will have less resistance. Co2 dragsters is the one school technology project your students will never forget students design their own dragster, build it themselves and then race it. You are going to come up with a super, fantastic idea for your dragster. Using templates in powerpoint for mac powerpoint for mac. Reinforces engineering, technology, and math concepts as students design and build an efficient model dragster carbondioxide co2 dragster kit provides students in grades 612 a handson activity to design, build, and race a model co2 dragster that demonstrates the scientific concepts of aerodynamics, motion, drag, and friction. I also researched function of co2 dragsters and clicked the pdf titled co2 dragster design and construction tips. You can help reduce it by making sure the axles are free to rotate, and that the wheels and tires are not rubbing on the car. An exercise in utilizing physics to create a shortrange racing vehicle. The students explore the elements of the system diagram for technology through a powerpoint slide show. Do you want to focus on the cars performance or appearance.
The dragster must adhere to the following measurements. Students will use the design processstudents will use the design process when building their co2 dragster. Basswood body blank with predrilled hole, 2 premium aluminum axles, 2 front wheels, 2 rear wheels, 2 screw eyes, stra. These are dragsters that were printed on the 3d printer at fremont and designed by the students in the advanced mechancial and. Co2 dragster design you are viewing some co2 dragster design sketch templates click on a template to sketch over it and color it in and share with your family and friends. The power plant hole must be at the farthest point at the rear of the car and must be drilled parallel to the racing surface to assure proper puncture of the co2 cartridge.
Co2 dragster unit overview the co2 dragster unit is an introduction for grade 910 students to many new and different concepts and challenges. They will time their cars and calculate how fast the car traveled. Purpose the dragster design event give ltsa members the opportunely to design and produce a fast co2 powered dragster according to stated specifications and using only certain materials. Co2 dragster design and construction tips designing a co 2 racer before putting pencil to paper, consider these important points. When everything is just right, you will make a prototype of how your dragster will look. The science of speed panayotis manganaris kent johnson 2. Either way, there are some key parts that make up this co2 powered model vehicle. These finished dragsters will then be tested on a 20meter track. The highest quality, most consistent, 8 gram cartridges available for propelling dragsters.
The car was to weigh over 45g, under 170g, and be selfpropelled. Follow the specifications given to you for the car. Trace the side and top view of your balsa blank onto paper. Ppt co2 cars powerpoint presentation free to view id. Co2 dragster design process by vincent hreszczuk on prezi. You wont believe how fast these little cars will go. This air resistance pushes against your co2 car and prevents it from going as fast as it could in a vacuum. The co2 dragsters programme is brilliantly openendedproviding multiple entry points, based on students prior knowledge. Possible solutions in order to have efficient co2 dragster the mass of the car needs to be reduced, the body of the car can be pencil thin and expand at the ends. While you can easily buy a kit in order to make a dragster of this kind, it is also possible to make it from scratch. If you continue browsing the site, you agree to the use of cookies on this website. They typically include a wedgeshaped block of wood, a set of plastic wheels, axles to attach the wheels and a small co2 cartridge. A streamlined object is one that has a shape that produces only a small amount of aerodynamic drag. Drill, coping saw, wood file or rasp, ruler, scissors, finish, and a race system.
Some very basic knowledge about three key areas will remove the mystery and help you become a good designer and make a fast dragster this is your start page. Co2 dragster design thinking process and manufacturing. We will use the geometry of the co2 dragster found on that web site. Camworks how to create cnc gcode for co2 dragster i. Aerodynamic properties of shapes wedge a good aerodynamic shape because of its long gradual slope. Students will research, design, and construct the cars. The car that arrives in the kit is essentially a blank slate. Its all about aerodynamics 2 4 basic principles to aerodynamics.
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