Which aircraft engine type typically has the highest maximum speed?

Jet engines are designed for high-speed performance, allowing aircraft to achieve significantly higher maximum speeds compared to other engine types. This capability stems from their design and the principles of operation, which includes the efficient expulsion of exhaust gases at high velocities. Jet engines, particularly turbojet and turbofan engines, can provide the thrust required for supersonic flight, making them the preferred choice for commercial airliners, military fighter jets, and other high-speed aircraft.

In contrast, piston engines, which operate using a reciprocating mechanism, are generally limited to lower speed ranges due to their mechanical complexity and drag characteristics. Turboprop engines, while efficient for shorter distances and capable of cruising at moderate speeds, usually reach lower maximum speeds than jet engines due to their reliance on propellers. Electric engines are emerging technologies, primarily used in smaller, regional aircraft, and currently do not match jet engines in terms of maximum speed capabilities.

As a result, jet engines stand out as the engine type typically associated with the highest maximum speeds in aviation.