Assembling And Testing A DIY Jet Turbine

September 30, 2026 by Maya Posch 17 Comments

After many months of painstaking work, [AlfMart CNC Garage] over at YouTube has finally reached the stage where he can fully assemble his DIY jet turbine and commence testing. Even if deceptively simple devices, just the starting mechanism turned out to be a challenge. Due to the extreme conditions that these jet turbines operate under, tolerances are narrow, and many of the materials require careful selecting and testing.

Fortunately this is not true for the outer casing, which is cobbled together from a commercial gas cylinder and a children’s steel drinking bottle that so happened to have the right dimensions. From there the parts get increasingly more specialized, down to the carefully balanced rotor. Assuming everything was done right up till this point, the first start-up will mean a happily roaring turbine and not a deafening explosion followed by a cloud of shrapnel.

In the video the full assembly can be observed, along with detailed instructions should anyone want to follow along with their own DIY jet turbine. Naturally a lot of attention has to be paid to tolerances during the assembly process. Following the basic turbine assembly, the RPM sensor circuit and the electrical starter are added, with the latter allowing for the turbine to spin up prior to ignition.

The first basic starter tests revealed an issue with the starter motor and clutch mechanism, requiring some upgrades. Before the first ignition the whole turbine has to be dynamically balanced, for which first a new balancing rig will be designed and assembled. While this means that first ignition will still be a while off, it’s best to take projects like this slow and steady. We’re also looking forward to seeing this new dynamic balancing rig that’s claimed to be much more advanced than that used for balancing the rotor.

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Small Jet Engine Model From Students Who Think Big

December 18, 2017 by Roger Cheng 21 Comments

We love to highlight great engineering student projects at Hackaday. We also love environment-sensing microcontrollers, 3D printing, and jet engines. The X-Plorer 1 by JetX Engineering checks all the boxes.

This engineering student exercise took its members through the development process of a jet engine. Starting from a set of requirements to meet, they designed their engine and analyzed it in software before embarking on physical model assembly. An engine monitoring system was developed in parallel and integrated into the model. These embedded sensors gave performance feedback, and armed with data the team iterated though ideas to improve their design. It’s a shame the X-Plorer 1 model had to stop short of actual combustion. The realities of 3D printed plastic meant airflow for the model came from external compressed air and not from burning fuel.

Also worth noting are the people behind this project. JetX Engineering describe themselves as an University of Glasgow student club for jet engine enthusiasts, but they act less like a casual gathering of friends and more like an aerospace engineering firm. The ability of this group to organize and execute on this project, including finding sponsors to fund it, are skills difficult to teach in a classroom and even more difficult to test with an exam.

After X-Plorer 1, the group has launched two new project teams X-Plorer 2 and Kronos. They are also working to expand to other universities with the ambition of launching competitions between student teams. That would be exciting and we wish them success.

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Human Flight At 190 MPH With No Steering

November 21, 2011 by Mike Szczys 48 Comments

It’s been a while since we looked in on a TED talk but this one is fantastic. [Yves Rossy] is interviewed about his jet-powered flight wing at the TED conference. He designed the unit as a form of personal flight. He straps it on, jumps out of a plane, then flies across the sky until he runs out of fuel. There’s no steering mechanism; it’s more of a fixed-wing hang glider plus jet turbine engines. But the pilot can affect the direction of the wing by moving his body.

We’ve embedded the video after the break. The first five minutes are all flight footage (which you’re going to want to watch… we specifically kept the banner image vague so as not to spoil it for you). After that, you’ll enjoy the interview where details about the hardware and its operation are shared.

The wing itself is about 2 meters across, hosting four kerosene-powered turbine engines. There’s about eight minutes worth of fuel on board, which [Yves] monitors with a clock while also keeping an eye on the altimeter. Landings are courtesy of a parachute, with a second on board as a backup. If things go badly–and they have as you’ll hear in the interview–an emergency release frees the pilot from the machine.

Want to build your own? Maybe this will get you started.

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