Build, power on, and explore the mechanics of a classic radial engine with the Ugears R-5 Aircraft Engine 3D wooden puzzle. Featuring authentic moving parts, a synchronized valvetrain, and a USB-C-powered propeller, this model offers a unique hands-on experience inspired by the golden age of aviation.

- Electric motor powered via USB-C
- 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
- On/Off switch integrated into the base
- Control board built into the stand

Pieces: 470

Dimensions: Height 245 mm (9.6") x Length 145 mm (8.7") x Width 220 mm (5.7")