Bearings are mechanical devices used to assist machinery in linear and rotational movement, friction reduction, and load support. They produce less friction than a sliding surface, and therefore enable the systems to which they are affixed to operate faster and more efficiently. Bearings are in use throughout the aerospace, civil aviation, defense, and marine sectors. Though bearings are simple parts, their importance cannot be overstated. The most commonly found bearings in the aerospace and defense industries are roller bearings, ball bearings, ball thrust bearings, screw bearings, baffle bearings, actuator bearings, and needle bearings.


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Due to the risk that a failure poses to the passengers and crew of an aircraft, the windows mounted in an aircraft’s fuselage are exhaustively designed and tested against any possible dangers they may face. The Federal Aviation Administration’s Advisory Circular 25.775-1 mandates that aircraft windows must undergo the same level of strength and resilience testing as other parts of the fuselage, like the wings and engines.


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Hydraulic systems need piping to transport hydraulic fluid from one point to another. To provide transportation in a safe and effective manner, engineers use a variety of hard metal tubing and flexible hosing, depending on the requirements of the hydraulic system and the aircraft in general.


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When we think about how aircraft fly, we are prone to automatically thinking about planes, their engines, and how they have to race down a runway in order to generate enough speeds to achieve lift. While rotorcraft such as helicopters follow similar principles of aerodynamics in order to achieve lift, the system they use, rotors, are quite different.


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In 1903, The Wright Brothers’ airfoil shaped propeller blades made the first powered flight in history. Nowadays, we still use a similar airfoil design for modern propeller blades, but we have a few options as far as pitch and angle of attack. Two commonly seen propeller types are fixed pitch propellers and variable pitch propellers.


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