BMW has a long history of manufacturing cars and motorcycles, but did it ever make airplane engines? If the answer is yes, do ...

In the video after the break, [Brick Technology] uses LEGO to gain some practical insight into the world of piston engine design, from single-cylinder all the way up to radial twelve-cylinder engines.

This a radial engine, and it was popular at that time because of the massive power it could bring, with the most powerful ...

But, what do you do when you want to build a radial engine in your dorm where a combustion engine would be inadvisable? For University of Washington students [Jeffrey Weng] and [Connor Lee] the ...

When it's a ramjet that uses rotating detonation technology to propel aircraft at hypersonic speeds. A case in point is Venus Aerospace's new Venus Detonation Ramjet 2000 lb Thrust Engine (VDR2).

Russell Sutton is a man after our own heart. The craftsman has spent the last four years building a nine-cylinder radial engine using a smattering of Honda XR600 singles for his airboat.

In 1971, the Russian physicist Yakov Zel’dovich predicted that electromagnetic waves scattered by a rotating metallic cylinder should be amplified by gaining mechanical rotational energy from the ...

This paper considers the sensitivity of an open-rotor engine to variations of three operational parameters during take-off, focusing on both aerodynamics and aeroacoustics. Via a sensitivity analysis, ...

Aurnou, Jonathan M. Bertin, Vincent Grannan, Alexander M. Horn, Susanne and Vogt, Tobias 2018. Rotating thermal convection in liquid gallium: multi-modal flow, absent ...

The easiest way to understand the difference between axial and radial calipers is to picture the front wheel of a bike in the shape of a full disc, rotating ... it comes to engine efficiency ...

Many folks simply refer to these engines as "flat-four" or "boxer" engines because of their horizontally opposed rotating ...

The seals or shields also function to keep dirt and dust from affecting bearing rotation. When under load, the bearings settle into the deepest points on the raceways and the load is transferred at ...