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Pratt & Whitney’s GTF Advantage engine achieves FAA type certification

Aviation Bussiness News

With first production engine deliveries expected later in 2025, the GTF Advantage will provide 4-8% more takeoff thrust, enabling higher payload and longer range, unlocking new destinations for airlines. In the high-pressure turbine (HPT), the enhancements include an advanced airfoil design with improved coatings.

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Quiz: Basic Aircraft Aerodynamics

Flight Training Central

The term 'angle of attack' is defined as the angle between the airplane's longitudinal axis and that of the air striking the airfoil. Air traveling faster over the curved upper surface of an airfoil causes lower pressure on the top surface. The four forces acting on an airplane in flight are lift, weight, thrust, and drag.

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Mastering Stalls: How to Recognize, Prevent, and Recover Safely

Flight Training Central

Depending on design, airfoils used in general aviation, stall at angles of attack between 16 to 18 degrees. This is because the vertical component of thrust reduces the wing loading, and the propeller slipstream tends to maintain airflow over the center sections of the wings.

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Passing the torch

Air Facts

The Four Forces of Flight (Lift, Thrust, Drag & Gravity) obey Newton’s Three Laws of Motion. irplane controls work per the Lever Principle, and a wing’s airfoil shape increases lift via the Bernouilli Principle and Coanda Effect. Like Moses and the Ten Commandments, aviation is limited by 10 laws of physics and chemistry.

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The No Longer Invisible Angle of Attack: AOA Indicators

Learn to Fly

An angle of attack (AOA) indicator can determine the aerodynamic health of the airfoil (wing). More simply, an AOA indicator displays the margin between the current AOA of the airfoil, and the AOA at which the airfoil will stall (critical AOA), providing the pilot with a visual and sometimes audible indication.

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Wingtip Vortices and Wake Turbulence

Pilot Institute

The exhaust coming out of aircraft engines looks pretty dangerous, generating huge amounts of thrust and pushing back tons of hot air. When air flows over the aircraft wing, the shape of the airfoil creates low pressure above the wing and relatively higher pressure below the wing. How Are Wingtip Vortices Formed?

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Is Flying a Helicopter Harder Than Flying a Plane? A Comparative Analysis

Pilot's Life Blog

The wings are designed with an airfoil shape, curved on the top and flatter on the bottom, creating a pressure difference when air flows over them. Each rotor blade acts as an airfoil, and as it rotates, it moves air over its surface, generating lift. This pressure difference produces lift, allowing the aircraft to ascend.

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