Why are radial engines not used in vehicles?

Radial engine

There are many different engines now. And of course there are also a lot of different designs and types. The radial engine is a type of internal combustion engine. Ultimately, this means that the cylinders and pistons are arranged in a star shape around the so-called crankshaft. In addition, it must be said that with this type of engine, the cylinders in a row are set and fixed in one plane.

Basically, all series of radial engines are only designed in a single row. At some point a lot more performance was required. For this purpose, two-row radial engines were developed, which were also known as double radial engines. This meant that two cylinder stars were arranged one behind the other. Over time, four-row radial engines were also developed when the performance requirements became even higher.

There was the classic design and, among other things, water-cooled versions, which, however, were not used very often. These were only interesting if you were in a very tropical climate. But what exactly are the advantages and disadvantages when it comes to the classic radial engine? What can be said about it and where is it used? These questions should be clarified briefly.

The area of ‚Äč‚Äčapplication emerged when engines were needed for aircraft. To be more precise, a radial engine was needed for a conventional aircraft engine. The reason was that the other engine that was installed earlier, this was the classic reciprocating engine with pistons swinging up and down, generated too many vibrations. The radial engine has the great advantage that it is much more balanced and also vibrates much more balanced. It also induces lower vibrations on the aircraft fuselage, that's for sure.

That of a radial engine ensures a high air resistance. However, further developments made it possible to get a grip on it. Of course, this resistance could not be completely eliminated, as was the case with V-engines or in-line engines. Incidentally, the first radial engines were built and used at the beginning of the twentieth century. Radial engines prevailed even before, during and after the Second World War, the beginnings were already evident in the First World War, but there it was still called rotary engines.