All of these problems aren’t a concern for [Igor], who’s building what will probably end up being the world’s smallest turbojet ... from a diesel engine into a jet. The innovation here ...

The Responsive Open Source Engine (ROSE) is designed to be cheap enough that it can be disposable, which has obvious military applications for the Air Force such as small jet-powered drones or ...

Screenshot from social media post of Ukrainian volunteers assembling a small cruise missile with ... at a depth of up to 140 km. A pulse jet engine operates by generating thrust through a series ...