What Are Brake Wear Pins and How Do Airplanes Use Them?

Most airplanes feature disc-style brakes similar to those found on automobiles. They are typically found on the main landing gear. Upon touching down, pilots will engage the airplane’s brakes. Heat-resistant discs will then squeeze together to create friction that slows … Read More

Annular vs. Forced Exhaust Mixers: What’s the Difference?

Exhaust noise is a concern with jet-powered airplanes. As hot exhaust gases collide with cool ambient air, it creates intense waves of pressurized and turbulent air, which manifests in the form of a loud roar-like noise. Fortunately, advancements in modern … Read More

What Is a Fuel Scavenge Pump and How Does It Work?

Fuel pumps play an important role in aviation. With the exception of small, gravity-fed airplanes, most modern airplanes use them to deliver fuel to their engines. Airplanes typically feature an electric boost pump for takeoffs and landings, and they feature … Read More

What Are Nacelle Thrust Reverser Cascades in Aviation?

Many people assume that airplanes rely strictly on brakes to decelerate upon touching down on the runway. Most airplanes do, in fact, have hydraulic disc brakes. Located on the main landing gear wheels, they consist of heavy-duty carbon or metal … Read More

How Flight Paths Are Chosen in Commercial Aviation

Ever wonder how flight paths for commercial airliners are chosen? There are roughly 100,000 to 150,000 commercial flights on any given day. Unlike private flights, they typically follow fixed routes and schedules and are open to the public. Each flight … Read More

Why Do Airplanes Have Trim Tabs?

When most people think of flight control surfaces, they envision ailerons, elevators and rudders. Pilots control these surfaces to perform basic maneuvers during all flight phases. There are also secondary control surfaces, however, such as trim tabs. Overview of Trim … Read More

5 Common Myths About Jet Airliners

Jet airliners dominate the commercial aviation industry. They are characterized by a jet engine propulsion system. While some airliners use a propeller-based propulsion system, jet airliners leverage one or more jet engines. They compress and mix air with fuel, after … Read More

Hush Kits: Reducing Noise in Old Airplanes

Airplanes have become quieter over the years. They often feature more aerodynamic bodies, which allows air to flow over them more naturally and with less resistance. They also feature newer engines, such as high-bypass turbofans. Old airplanes, however, often lack … Read More

Understanding Fuel-Air Ratios in Aviation

Fuel-air ratios play an important role in the aviation industry. Whether it’s a small Cessna 172 or a jumbo-sized Airbus A380, most airplanes burn a mixture of fuel and air. They feature engines with fuel feed lines and air intakes. … Read More