If you want to print this model yourself, your printer need a minimum build volume of 168x168x173mm

In-depth guide for printing and assembling this model: “How to Print & Assemble The JET-MN”.

Overall dimensions:

• Length: 349mm
• Height: 180mm
• Width (or Fan Case Diameter): 174mm

Weight: Approx. 2kg
Manufacturing lead time: 2-3 weeks
Total number of components: 39 (see break down below)
Total number of 3D printed parts: 31
Total number of bought-in parts excluding magnets: 8

This model was designed using publicly available material from the internet including CAD models, videos and pictures of the real jet engines from various aerospace companies.

What does the Nacelle do?

• The Nacelle determines the air needed for the engine to operate
• The shape of the Nacelle helps reduce fuel burn
• The Nacelle’s acoustic treatment contribute to the engine noise reduction
• The Nacelle stands up to extreme temperatures to protect the engine and airplane
• The Nacelle also helps take up loads between the engine and its mounting pylon, especially when the Thrust Reverser is activated
• The Nacelle calibrates airflow at inlet and outlet to ensure maximum propulsive efficiency
• The Thrust Reverser in the Nacelle helps reduce braking distance by 20–50%

The Nacelle comprises of some major units including:

• Air Intake: Channels the airflow coming into the engine
• Fan Cowl: Protect the engine and its accessories
• Thrust Reverser: Redirects the bypass airflow towards the front of the engine to help brake the plane
• Exhaust System: Comprising the Exhaust Nozzle and Tail Cone, it channels the hot gases exiting the engine

The JET-MN model is an excellent STEM kit because:

• It helps capture the attention of young students instantly and engage with them more effectively
• It helps the students better understand how a Jet Engine works in simple terms, and also how the Nacelle works by being able to explore a physical model and interact with it rather than looking at pictures or CAD model of an engine via an app
• The model is made by 3D printing, hence, it helps spark interesting conversations with the students about how technologies, such as additive manufacturing, are revolutionising the engineering industry today and how they can learn the skills that would benefit their careers in STEM in the near future
• Finally, with its small size, excellent quality and finish, this model can also be used as an award, trophy, gift or simply a super cool item in your personal aerospace collection!