• Build your own fully functional model of a two-spool turbo fan engine with jet engine sounds
• Includes detailed step-by-step instructions
• Includes everything you need to build your own engine
• Adult supervision recommended
• Required 3x AA batteries

This model is a greatly simplified version of a real jet engine. It’s designed to be fun to put together and includes a number of transparent parts that make it a practical aid to understanding how a full-size two-spool turbo fan engine works.The box contains all the parts you need to assemble the working model. It comes complete with its very own Haynes manual, giving you clear step by step assembly instructions, as well as some interesting background information about real engines. All you need to provide is the spare time and three AA batteries. The base includes a sound clip that reproduces the noise of a real jet engine running while the model operates. Ages 10+