# Rocket Nozzles

The Rocket Nozzles project will introduce students to the science behind rocket engines and one very interesting component, a rocket engine exhaust nozzle. Students will need to calculate their own nozzle’s appropriate diameters and use TinkerCAD®, to design a model in 3D based on their calculations. As a result, a lifelike version of a rocket nozzle on a scale of 1:100 will be 3D printed.
Subjects
Design and TechnologyScienceMathematicsHumanitiesComputing
Duration
Lesson 1: 90 minutes Lesson 2: 90 minutes Print Time : 50 minutes
Rocket Nozzles trailer
Play 0:47

### Objectives

• Know how to calculate the cross-sectional area and exit plane of a rocket nozzle
• Know how to calculate the area, radius and circumference of a rocket nozzle using algebraic formulas
• Use TinkerCAD software to design a model of a rocket nozzle optimized for 3D printing
• Manufacture a rocket nozzle model using a 3D printer

### Tools and Equipment

• BE3D eDee 3D printer and a computer equipped with CAD software
• Set of example models
• Set of resource data sheets

### Skill requirements

To participate in the lesson, students should be able to:

• Carry out simple algebraic calculations
• Read and understand simple formulas
• Carry out simple mathematical functions
• Use TinkerCAD, Fusion 360 or Similar CAD software at a beginner/intermediate level
• Be comfortable using DeeControl layering software to adjust print settings
• Use the BE3D eDee 3D printer
Rocket Nozzles Walkthrough
Locked 1:57

## 3D models overview

• Total print time 19 hours 40 minutes
• Total filament 26.5 m
• Printed all at once
Engine bell stand
• 3.5 hours
• 6.7 m
Aerojet Rocketdyne RS 25
• 2 hours
• 1.8 m
SpaceX Raptor vacuum
• 1 hour
• 0.8 m
SpaceX Raptor vacuum (Extended)
• 1 hour 20 minutes
• 1.2 m
Rocketdyne F1 Nozzle
• 4 hours
• 5.5 m
SpaceX Raptor Atm
• 50 minutes
• 0.7 m
Tarantula engine cutout
• 7 hours
• 10 m
Note: Values are calculated for one set of models.

### Lesson resources

• Lesson plan
• Example rocket nozzle models
• Worksheet
• Walkthrough
• Presentation
• 3D models
• 3D print instructions
• Curriculum Alignment: ISTE standard compliant