Hirth and ePropelled develop hybrid propulsion systems for UAVs and drone technology with extended flight duration.

Hirth Engines, a globally recognised leader in two‑stroke engine technology, and ePropelled, an innovator in high‑efficiency intelligent electric propulsion and power‑generation systems, today ...

The two-stroke gasoline engine was once a marvel of engineering, offering up huge doses of power in small and lightweight packages. Unfortunately, gas two-strokes also burn oil by design, making them ...

The engine is possibly the greatest invention in the history of mankind. Generally speaking, engines are machines that convert one form of energy into mechanical energy and have revolutionized all ...

Anyone who appreciates simplicity of design and efficiency of operation has to like small two-stroke-cycle engines that power construction tools such as cut-off saws, rammers and breakers. Producing ...