2. INSPIRATION – BLOODHOUND SSC WORLD LAND SPEED ATTEMPT
To beat the world land speed record and to make a car travel over 1000mph on the ground involves Bloodhound SSC engineers solving problems involving weight, strength, aerodynamics and forces.
Now you can have a go too.

3. How fast can you make a model rocket car go?
Compete with over 100,000 other Y7 students in a national race off to find out!

4. DESIGN AND MAKE THE FASTEST MODEL ROCKET CAR
DESIGN BRIEF
DESIGN AND MAKE THE FASTEST MODEL ROCKET CAR
Class Discussion or small group activity and share/review ideas

5. WHAT DO WE NEED TO CONSIDER TO MAKE A FAST CAR?
KEY QUESTION: ANALYSIS
WHAT DO WE NEED TO CONSIDER TO MAKE A FAST CAR?
Class Discussion or small group activity and share/review ideas

6. SAFETY RESTRICTIONS: The Foam Body
You can shape the foam body to improve aerodynamics and to reduce the total weight of the car.
The red areas on the diagram show areas that cannot be cut into.
These areas hold the safety guides, a microbit and the rocket motors and the axles must pass through them.

7. SAFETY RESTRICTIONS: Accommodating the Guide Wires
A guide wire (or tether) is used in all races for safety reasons. Two metal eyes extend from the bottom of the foam body that the guide wire passes through.
Ensure your wheels have sufficient radius to keep the line and the metal eyes from striking the ground

8. PARTS OF A WHEEL Rim Spokes Hub
You can construct a simple wheel by cutting a circle from a material such as thin wood or metal.
You can also construct a wheel by creating a rim and a hub and connecting them with spokes like a bicycle wheel.
Design Question:
Will the wheel spin on the axle or will the wheel and axle spin together?
Rim
Spokes
Hub

9. CONSIDERING WEIGHT
The force of the rocket motor (F) is fixed but the mass (m)of the car is a variable you can control.
The maximum acceleration (a) your car can achieve is linked to the mass of the car by the following equation:
QUESTION: What happens to the acceleration if you decrease the mass?
QUESTION: What is the benefit of lighter wheels?

10. Decreasing opposing forces increases top speed.
CONSIDERING FRICTION AND AIR RESISTANCE
Decreasing opposing forces increases top speed.
Friction and air resistance are some of the opposing forces that will limit the top speed of your rocket car.
You can use force arrows to show the size and direction of these forces.
Driving Force
Air Resistance
Friction

11. TASK PART 1: Research & Design
Develop a design on paper or using ICT (3D) for your wheels and axles
Research wheel designs. Explain how you will:
keep the overall weight down
ensure the wheels are safe and strong
reduce the effects of air resistance and friction
select the right tools and materials (think about safety)
test the wheel

12. TASK PART 2: Build Construct your wheels
Do you want to create prototypes you can test and improve?
If you are using tools, how will you keep safe?
If you are using laser cutters or 3D printers do you have all the time and resources you need?

13. TASK PART 3: Test and Review
Test and review your wheeled vehicle
How can you do a fair test to confirm that your wheels are high performing?
Can you suggest and make improvements?
Produce a report showing how you developed and evolved your design. Is there anything you might do differently? What can you share with other teams to help develop the most competitive cars for your school?

14. TASK PART 3: Test and Review – Make a timing gate

15. TASK PART 3: Test and Review – Class Competition