69 relations: Air pollution, Aircraft fairing, Area rule, Armstrong Flight Research Center, Boeing 2707, Bow wave, Bullet, Bullwhip, Busemann's Biplane, Business jet, Chase plane, Cherenkov radiation, Class action, Concorde, Concrete, Cornell University, DARPA, Explosion, Federal Aviation Administration, Figure of merit, Fireworks, Flying wing, Frequency band, Fuselage, Ground vibration boom, Gulfstream Aerospace, Gunshot, Hertz, Humidity, Hypersonic speed, Intelligent flight control system, Leaf, Lockheed F-104 Starfighter, Lockheed Martin, Lockheed Martin X-59 QueSST, Lockheed SR-71 Blackbird, Mach number, McDonnell Douglas F-4 Phantom II, Mortar (weapon), NASA, NASA X-43, North American XB-70 Valkyrie, Northrop F-5, Nose cone, Oblique wing, Occupational noise, Oklahoma City sonic boom tests, Overpressure, P-wave, Pascal (unit), ..., Poaceae, Pressure, Quiet Spike, Red carpet, Road surface, Shaped Sonic Boom Demonstration, Shock wave, Sound, Sound barrier, Space Shuttle, Speed of sound, Supershear earthquake, Supersonic speed, Supersonic transport, Thunder, United States Bureau of Mines, Vapor cone, Wind, Wingspan. Expand index (19 more) » « Shrink index
Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.
An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.
The Whitcomb area rule, also called the transonic area rule, is a design technique used to reduce an aircraft's drag at transonic and supersonic speeds, particularly between Mach 0.75 and 1.2.
The NASA, Neil A. Armstrong Flight Research Center (AFRC) is an aeronautical research center operated by NASA.
The Boeing 2707 was the first American supersonic transport (SST) project.
A bow wave is the wave that forms at the bow of a ship when it moves through the water.
A bullet is a kinetic projectile and the component of firearm ammunition that is expelled from the gun barrel during shooting.
A bullwhip is a single-tailed whip, usually made of braided leather, designed as a tool for working with livestock.
Busemann's Biplane is a conceptual airframe design invented by Adolf Busemann which avoids the formation of N-type shock waves and thus does not create a sonic boom.
A business jet, private jet, or bizjet, or simply B.J., is a jet aircraft designed for transporting small groups of people.
A chase plane is an aircraft that "chases" a "subject" aircraft, spacecraft or rocket, for the purposes of making real-time observations and taking air-to-air photographs and video of the "subject aircraft", during flight.
Cherenkov radiation (sometimes spelled "Cerenkov") is electromagnetic radiation emitted when a charged particle (such as an electron) passes through a dielectric medium at a speed greater than the phase velocity of light in that medium.
A class action, class suit, or representative action is a type of lawsuit where one of the parties is a group of people who are represented collectively by a member of that group.
The Aérospatiale/BAC Concorde is a British-French turbojet-powered supersonic passenger airliner that was operated from 1976 until 2003.
Concrete, usually Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens over time—most frequently a lime-based cement binder, such as Portland cement, but sometimes with other hydraulic cements, such as a calcium aluminate cement.
Cornell University is a private and statutory Ivy League research university located in Ithaca, New York.
The Defense Advanced Research Projects Agency (DARPA) is an agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military.
An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases.
The Federal Aviation Administration (FAA) of the United States is a national authority with powers to regulate all aspects of civil aviation.
A figure of merit is a quantity used to characterize the performance of a device, system or method, relative to its alternatives.
Fireworks are a class of low explosive pyrotechnic devices used for aesthetic and entertainment purposes.
A flying wing is a tailless fixed-wing aircraft that has no definite fuselage.
A frequency band is an interval in the frequency domain, delimited by a lower frequency and an upper frequency.
The fuselage (from the French fuselé "spindle-shaped") is an aircraft's main body section.
Ground vibration boom is a phenomenon of very large increase in ground vibrations generated by high-speed railway trains travelling at speeds higher than the velocity of Rayleigh surface waves in the supporting ground.
Gulfstream Aerospace Corporation is an American wholly owned subsidiary of General Dynamics.
A gunshot is a single discharge of a gun, typically a man-portable firearm, producing a visible flash, a powerful and loud shockwave and often chemical gunshot residue.
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
Humidity is the amount of water vapor present in the air.
In aerodynamics, a hypersonic speed is one that is highly supersonic.
The Intelligent Flight Control System (IFCS) is a next-generation flight control system designed to provide increased safety for the crew and passengers of aircraft as well as to optimize the aircraft performance under normal conditions.
A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem.
The Lockheed F-104 Starfighter is a single-engine, supersonic interceptor aircraft which later became widely used as an attack aircraft.
Lockheed Martin is an American global aerospace, defense, security and advanced technologies company with worldwide interests.
The Lockheed Martin X-59 is an American experimental supersonic aircraft being developed for NASA's Low-Boom Flight Demonstrator program.
The Lockheed SR-71 "Blackbird" is a long-range, Mach 3+ strategic reconnaissance aircraft that was operated by the United States Air Force.
In fluid dynamics, the Mach number (M or Ma) is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound.
The McDonnell Douglas F-4 Phantom II is a tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber originally developed for the United States Navy by McDonnell Aircraft.
A mortar is usually a simple, lightweight, man portable, muzzle-loaded weapon, consisting of a smooth-bore metal tube fixed to a base plate (to absorb recoil) with a lightweight bipod mount.
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
The X-43 was an experimental unmanned hypersonic aircraft with multiple planned scale variations meant to test various aspects of hypersonic flight.
The North American Aviation XB-70 Valkyrie was the prototype version of the planned B-70 nuclear-armed, deep-penetration strategic bomber for the United States Air Force Strategic Air Command.
The Northrop F-5A and F-5B Freedom Fighter and the F-5E and F-5F Tiger II are part of a supersonic light fighter family, initially designed in the late 1950s by Northrop Corporation.
The term nose cone is used to refer to the forwardmost section of a rocket, guided missile or aircraft.
An oblique wing (also called a slewed wing) is a variable geometry wing concept.
Occupational noise is the amount of acoustic energy received by an employee's auditory system when they are working in the industry.
The Oklahoma City sonic boom tests, also known as Operation Bongo II, refer to a controversial experiment in which 1,253 sonic booms were generated over Oklahoma City, Oklahoma, over a period of six months in 1964.
Overpressure (or blast overpressure) is the pressure caused by a shock wave over and above normal atmospheric pressure.
A P-wave is one of the two main types of elastic body waves, called seismic waves in seismology.
The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength.
Poaceae or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses, commonly referred to collectively as grass.
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
Quiet Spike was a collaborative program between Gulfstream Aerospace and NASA's Dryden Flight Research Center to investigate the suppression of sonic booms.
A red carpet is traditionally used to mark the route taken by heads of state on ceremonial and formal occasions, and has in recent decades been extended to use by VIPs and celebrities at formal events.
A road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway.
The NASA Shaped Sonic Boom Demonstration, also known as the Shaped Sonic Boom Experiment, was a two-year program that used a Northrop F-5E with a modified fuselage to demonstrate that the aircraft's shock wave, and accompanying sonic boom, can be shaped, and thereby reduced.
In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance.
In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
The sound barrier or sonic barrier is a popular term for the sudden increase in aerodynamic drag and other effects experienced by an aircraft or other object when it approaches supersonic speed.
The Space Shuttle was a partially reusable low Earth orbital spacecraft system operated by the U.S. National Aeronautics and Space Administration (NASA), as part of the Space Shuttle program.
The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium.
A supershear earthquake is an earthquake in which the propagation of the rupture along the fault surface occurs at speeds in excess of the seismic shear wave (S-wave) velocity.
Supersonic travel is a rate of travel of an object that exceeds the speed of sound (Mach 1).
A supersonic transport (SST) is a civilian supersonic aircraft designed to transport passengers at speeds greater than the speed of sound.
Thunder is the sound caused by lightning.
For most of the 20th century, the United States Bureau of Mines (USBM) was the primary United States government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
A vapor cone, also known as shock collar or shock egg, is a visible cloud of condensed water which can sometimes form around an object moving at high speed through moist air, for example an aircraft flying at transonic speeds.
Wind is the flow of gases on a large scale.
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip.