OHV stands for overhead valve, and these types of powerplants can also be called pushrod engines. OHV engines have the intake and exhaust valves located above the camshaft, which is in the engine ...

The Boeing 747-400, introduced in the late 1980s, represented a significant evolution of the iconic 747, featuring improved aerodynamics, advanced avionics, and substantially improved fuel efficiency.

When observing the Boeing 757 on the ramp, keen-eyed observers might notice a significant difference in the shape and sound of the powerplants under the wings. This leads to a very interesting ...

Jet engines are relatively simple in their basic design, but advancements in gas turbine engine technology have mostly done away with the cool-looking bucket-type reverse thrust systems. These thrust ...

There are people who will tell you that the roar of a V8 engine is one of the most beautiful sounds of all time — a point that's hard to argue with. The deep and thunderous growl of a powerful V8 ...

Inline and V engines dominate modern combustion vehicle design. Each layout offers unique advantages in packaging, smoothness, cost, and performance. Here is how the two configurations differ and why ...

Variable cycle engine design embodies a transformative approach in aero‐propulsion, enabling engines to adapt their thermodynamic cycle to meet diverse operational demands, from fuel efficiency to ...

The US Air Force (USAF) has reached a significant milestone in its effort to develop a sixth-generation jet engine. The service has completed detailed design reviews of two adaptive-cycle engine ...

As interest in motorcycling has grown over the decades and technology has improved, we've seen the development of various motorcycle engine types. Whether it's a classic two-wheel model or even a 3 ...