UGEARS R-5 Aircraft Engine – Mechanical 3D Model to Build

Modeling joy. Feel the heartbeat of early aviation.

Have you ever watched an engine running and wondered what exactly is happening inside — how the pistons move, how the valves open and close, how all those separate parts work together as one machine?

The R-5 Aircraft Engine was created to make those mechanics visible.

UGEARS R-5 Aircraft Engine – mechanical 3D model with five-cylinder radial engine

Build a classic radial engine and watch it come alive

Some models are made simply to look good on a shelf. The UGEARS R-5 Aircraft Engine is different: it is designed to let you explore the fascinating mechanics inside a classic radial aircraft engine while building it piece by piece. With 470 components and an advanced level of difficulty, this mechanical 3D model is an engaging project for anyone interested in aviation, engineering, mechanics and moving models.

Inspired by the radial engines that helped shape the early years of aviation, the R-5 makes its mechanisms visible and easy to appreciate. Connect the model via USB-C, switch it on and watch the five pistons, valves, crankshaft and propeller move together. The result is much more than a decorative wooden model – it is a working mechanical display that brings the fascinating world of aviation engineering to your desk.

UGEARS R-5 model with moving pistons, valves and mechanical components

Five cylinders, moving pistons and a synchronized valve system

The heart of the R-5 Aircraft Engine is its five-cylinder radial configuration. Once switched on, the pistons move in the correct firing sequence – 1-3-5-2-4 – while the valve train operates in synchronization above them. Metal push rods, compression springs, gears and the crankshaft work together to recreate the characteristic movement of a radial engine.

The propeller rotates along with the internal mechanism, making the model especially satisfying to watch once construction is complete. UGEARS has also incorporated a safety-release mechanism into the milled propeller, designed to disengage if it encounters resistance. Every important mechanical element remains visible, so you can actually see how the different parts interact as the engine runs.

UGEARS R-5 Aircraft Engine with rotating propeller powered via USB-C

A hands-on building experience for mechanical minds

Building the R-5 is just as important as seeing the finished model in action. The kit combines precisely cut wooden pieces with metal parts and electronic components, allowing you to gradually transform a collection of individual components into a functioning mechanical engine. It is designed to be assembled without glue or special tools, following illustrated step-by-step instructions available in 11 languages.

With its Advanced difficulty level and 470 pieces, the R-5 is a project to enjoy at your own pace. The real pleasure comes from understanding how each part connects to the next and discovering how the complete mechanism works. Once finished, you have not only built a detailed model but also created a working piece of mechanical engineering that you assembled yourself.

UGEARS R-5 Aircraft Engine – 470-piece wooden mechanical model kit

An original gift for aviation and engineering enthusiasts

The UGEARS R-5 Aircraft Engine is an exciting choice for experienced model builders and for anyone fascinated by aviation, mechanical engineering, engines and ingenious moving mechanisms. It makes an original gift for a hobbyist, aviation enthusiast or simply someone who enjoys projects that combine creativity with technology and hands-on construction.

The completed model measures approximately 22 × 24.5 × 14.5 cm, making it large enough to appreciate the moving mechanisms while still fitting comfortably on a desk, shelf or display cabinet. Recommended for ages 14 and up, the R-5 combines wood, metal and electronics in a model that turns the history and mechanics of early aviation into an engaging building experience.

R-5 Aircraft Engine features:

• Correct 5-cylinder firing order: 1-3-5-2-4
• Fully synchronized valvetrain with metal pushrods and compression springs
• Milled propeller with safety release mechanism
• Electric motor powered via USB-C
• On/Off switch integrated into the base
• Control board built into the stand

Ugears DIY model features:

• Illustration of key concepts in mechanics, motion, and engineering design
• A unique blend of education and entertainment through hands-on assembly
• Combines wood, metal, and electronic components
• Assembles without glue or special tools
• Step-by-step instructions in 11 languages
• Free spare parts on request

Assembly Instructions PDF

Downloads (77.66M)

Step-by-step assembly video instructions

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