1DRAGSTER DESIGNOVERVIEWParticipants design, produce working drawings, and build a CO2 powered dragster.PURPOSEDesign and produce a fast CO2-powered dragster according to stated specifications and using only certain materials.ELIGIBILITYEntries are limited to two (2) individually-produced dragsters per chapter.TIME LIMITSA. Entries must be started and completed during the current school year.B. Each dragster and drawing is submitted at the time and place stated in the conference program.C. Drawings and cars must be picked up at the specified time upon the conclusion of the event.ATTIREBusiness Casual dress as described in Competitive Events Attire is the minimum requirement.PROCEDUREA. Participants check in their entries at the time and place stated in the conference program.B. Entries are reviewed by evaluators to determine, among other things, safety on the track.C. Safe dragsters race for qualifying time on the same lane of the raceway.D. The top sixteen (16) qualifying cars based on the time trials are evaluated against the criteria for this event.E. Dragsters that do not meet event regulations are disqualified and lower qualifying cars are moved up until sixteen (16) dragsters that meet specifications are determined.F. A wind tunnel test is performed to determine relative wind resistance.G. The top sixteen (16) cars race in a double-elimination format to earn points for the race portion of the event.H. Drawing and design points are combined with race points to determine the final standings.REGULATIONSA. Each entry must be submitted with a full-size metric drawing of the completed vehicle. A two (2)-view (top and side) drawing with metric dimensions is made on paper no larger than B-size drawingpaper. Drawings are developed using standard engineering practices and procedures. The drawing may be produced using traditional drafting methods or CAD. The title block includesonlythe participant’s “entry number” that is assigned at registration time and is placed on the entry and drawing during check-in.B. The official distance between the start line and the finish line on the race track is twenty (20) meters.C. Dragsters that do not meet the following specifications/tolerances are disqualified from the race.Dragster body2DB1. One-piece, all-wood construction. Any type of lamination results in disqualification. No add-ons such as body strengtheners, fenders, plastic canopy, exhausts, or air foils may be attached to or enclosed within the vehicle. Fiberglass and shrink wrap are considered body strengtheners and cannot be used on the car body for any reason. Decals may be used for decoration only; they may not be used to gain an aerodynamic advantage, i.e., decals cannot cover the exterior axle holes or be used to cover open areas of the body. Two (2) or more like or unlike pieces of wood glued together are not considered one-piece, all-wood construction.MINIMUM MAXIMUMDB2. Body length .............................................................. 200mm .................................305mmDB3. Body height with wheels ..........................................................................................75mmDB4. Body mass (completed car without CO2) ............(2007) 65g............................................................................(2008) 50gD������B������5����� �������Bo�dy width at axles, front and back ........................... 35mm ...................................42mmDB6. Vehicle total width (including wheels) ......................................................................90mmAxles/axle holes/wheelbaseA1. Dragsters must have two (2) axles per car, no more.A2. Bottom of axle bearing above bottom of car ................ 5mm ...................................10mmA3. Rear axle hole from rear of car .................................... 9mm .................................100mmA4. Wheelbase (axle distance apart at farthest points) .. 105mm .................................270mmA5. Bearings, bushings and lubricants may be used.A6. Glue may be used to secure bearings to body.Spacer washers/clipsS1. Spacer washers ...............................................................................................................8S2. Axle clips ..........................................................................................................................8S3. Silicone or any other type of glue/adhesive may not be used in place of wheel clips to hold wheels or axles in place.Power plant (CO2 cartridge hole)P1. 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. A minimum of 3mm thickness around the entire power plant hole must be maintained on the dragster for safety. The inside of the powerplant hole must not be painted.P2. Hole depth ................................................................. 48mm ...................................54mmP3. Safety zone thickness .................................................. 3mmP4. Chamber diameter ..................................................... 19mm ...................................20mmP5. Lowest point of chamber diameter to race surface(with wheels) .............................................................. 26mm ...................................40mmEye screwsES1. Dragsters must have two (2) screw eyes per car that meet tolerances, no more. Screw eyes must not make contact with the racing surface. The track string must pass through both screw eyelets, which are located on the center line of the �bottom of the car. Glue may be used to reinforce the screw eyes. It is the responsibility of the car designer/engineer to see that the eye screw holes are tightly closed to prevent the track string from slipping out. As with all adjustments, this must be done prior to event check-in.ES2. Inside diameter ............................................................. 3mm .....................................5mmES3. Distance apart (at farthest points) ............................ 150mm .................................270mm3WheelsW1. A dragster must have four (4) wheels, no more. Two (2) wheels must meet rules W2 and W3. The other two (2) must meet rules W4 and W5. All four (4) wheels must touch the racingsurface at the same time. All wheels must roll. Wheels must be made entirely from plastic. Dimensions must be consistent for the