Aviation Science
The force that keeps an airplane in the air, generated by the wings.
What is lift
This plane became the first commercially successful jet airliner in the 1950s.
What is the Boeing 707?
The name of the original Boeing company founder.
Who is William (Bill) Boeing?
The torque-controlled fastener commonly used for primary joints in aircraft structures that requires precise installation and may use a shear-off head.
What is a Hi-Lok or Hi-Shear fastener (or torque-controlled bolt/sheer head fastener)?
The line along which bending moment is zero in a simply supported beam with a symmetric load.
What is the neutral axis?
This instrument shows an aircraft’s altitude above sea level.
What is the altimeter?
The aircraft that first demonstrated controlled, powered, heavier-than-air flight by humans.
What is the Wright Flyer?
The historic Boeing model that first used jet propulsion in a bomber role for the U.S. Air Force during the early Cold War and later inspired commercial designs.
What is the Boeing B-47 Stratojet?
The design practice of orienting plies at multiple angles (e.g., 0°, ±45°, 90°) with symmetry about a neutral plane.
What is quasi-isotropic layup (or balanced, symmetric layup)
The slope of the load-deflection curve at small strains for a linear elastic material, commonly denoted E.
What is Young’s modulus (elastic modulus)?
The angle between the wing chord line and the oncoming airflow, which dramatically affects lift.
What is angle of attack?
The record-breaking German rocket-powered research aircraft that first exceeded Mach 1 in a dive.
What is the Messerschmitt Me 163 Komet?
The major aerospace competitor Boeing merged with or acquired in 1997, a deal that reshaped the corporate product lineup.
What is McDonnell Douglas?
The joining method that forms a metallurgical bond between parts using a non-consumable tungsten electrode, often used for high-strength, leak-tight assemblies.
What is TIG or GTAW welding?
The type of buckling that occurs when a slender column fails by lateral deflection under axial compression.
What is Euler buckling (or elastic buckling)?
This equation is (0.5*fluid density*fluid velocity^2)+(fluid density*gravity*elevation)+static pressure.
What is Bernoulli's equation?
The iconic U.S. Navy fighter used extensively in the Pacific Theater in 1945, recognizable by its foldable wings for carrier storage.
What is the F6F Hellcat? F4U Corsair was land based and F4F was used earlier in the war.
The original name of the company before it became Boeing.
What is Pacific Aero Products Co.
The UG NX command that creates a body through a mesh of sections in one direction and guides in another direction where the shape fits through the mesh of curves.
What is Through Curve Mesh?
The structural analysis method that superposes effects of individual loads or load cases because the governing equations are linear.
What is the principle of superposition?
The navigation system developed by the US and UK during WW2 that uses time difference of arrival from multiple ground stations to determine position and remained in use by the US until 2010.
What is LORAN?
The German World War I biplane widely credited with advancing fighter aircraft design; flown by pilots like the Red Baron.
What is the Fokker Dr.I (triplane) or Fokker D.VII (accept either)?
Boeing canceled which variant of the 787?
What is the -3 variant?
The geometric property that strongly affects bending stiffness and stresses in a beam section, commonly denoted I.
What is the second moment of area, or second area moment, or quadratic moment of area, or the area moment of inertia
This equation represents the derivative of crack length divided by the derivative of the number of cycles = material constant C times the stress intensity factor range to power of material constant n.
What is the Paris equation? Describes the rate of fatigue crack growth.