#aerospace engineering
- Aerocell — A porous, insulating, and ultra-light material characterized by a cellular structure in which the liquid phase of a gel has been completely replaced with a gas (usually air) without the solid network collapsing. It is widely used in industrial thermal insulation, the aerospace industry, and construction due to its extremely low thermal conductivity.
- Aerodyne — Any aircraft heavier than air, whose support and lift in the Earth's atmosphere are provided exclusively by the dynamic forces exerted by air on its lifting surfaces (fixed wings or moving rotors) during travel. The classification includes airplanes, helicopters, gliders, and drones, representing the opposite of aerostats.
- Aerodynamics — A branch of fluid mechanics that studies the laws governing the motion of air or other gases, as well as the forces exerted by them on solid bodies in relative motion to them. This scientific field governs the design of aircraft, rockets, and terrestrial vehicles by optimizing lift and drag forces.
- Aerodynamicist — An engineer or researcher specialized in the field of aerodynamics; a specialist who deals with the study, design, optimization, and testing of the behavior of solid bodies (aircraft, cars, rockets) moving through airflows or gases. This activity includes the use of advanced computer simulations and experimental tests in wind tunnels to reduce drag resistance.
- Airmobile — As an adjective, it describes military forces, equipment, or tactical units capable of being rapidly transported and deployed through the air using aircraft (especially helicopters); as a neuter noun, it represents a conceptual or experimental hybrid vehicle designed to drive on roads and fly in airspace.
- Aeronautical — Belonging to aeronautics or relating to aerial navigation, as well as the study, design, construction, and operation of aircraft. This term describes structural, regulatory, industrial, or scientific elements essential for vehicle flight within Earth's atmosphere, ranging from airplanes and helicopters to complex propulsion and control systems.
- Aeronautics — The science, technology, and collective industries dealing with the design, construction, testing, operation, and navigation of aircraft within Earth's atmosphere. The field encompasses complex disciplines such as aerodynamics, aerospace structures, propulsion, and avionics systems, aiming to optimize the safe movement of vehicles lighter or heavier than air.
- Aircraft — Any technical apparatus capable of sustaining itself in the atmosphere and moving through airspace due to the reactions of the air, other than its reactions against the earth's surface. This vast category structurally includes both aircraft lighter than air, such as balloons and airships, and aircraft heavier than air, such as airplanes, helicopters, and gliders.
- Aerospace — Belonging or relating simultaneously to Earth's atmosphere and the outer space beyond it, or to the design and construction of vehicles intended for navigation in both environments. This term describes an extremely complex industrial and scientific branch, structurally encompassing aerodynamic research, rocket engineering, satellite flight, and extra-atmospheric navigation systems.
- Aldural — The commercial or technical name of a special metallic alloy based on aluminum, copper, and magnesium, similar to duralumin, used in the aircraft and machinery industries due to its low weight and exceptional mechanical strength. Structurally, this material undergoes artificial aging heat treatments to optimize its elastic properties and surface hardness.
- Altitelemetry — A method or technique for remotely measuring the altitude of a moving object (aircraft, rocket, satellite) and automatically transmitting the recorded data, via radio waves or laser, to a ground monitoring station.
- Altitelemeter — A complex device or electronic instrument used to remotely measure the altitude of an object (aircraft, drone, rocket) and automatically transmit the obtained values via radio data streams to a control center.
- Moon-land — To perform a controlled descent and landing maneuver of a spacecraft, module, or cosmic vehicle on the surface of the Moon. This high-precision technological and astronautical process involves slowing down the travel speed using retrorockets to guarantee a smooth contact with the lunar soil without damaging the equipment.
- Moon landing — The act of moon-landing and its result; the complete aerospace operation of descent, structural contact, and securing of a cosmic vehicle on the crust of the Moon. This engineering phenomenon represents one of the most complex phases of a lunar mission, requiring real-time dynamic velocity and altitude corrections.
- To land on Mars — To touch down, land, or guide a spacecraft, cosmic probe, or exploration module onto the surface of the planet Mars in a controlled manner. It is the Martian equivalent of the terms 'to land' (on Earth) or 'to lunaland' (on the Moon).
- Mars landing — The act of landing on Mars and its result; a complex aerospace maneuver and technological process through which a spacecraft, cosmic probe, or robotic exploration module descends and safely touches down on the surface of the planet Mars.
- Water-landing apparatus — A technical device, structural component, or pneumatic mechanism used to cushion the impact and ensure the buoyancy of an aircraft or space capsule at the moment of contact with water; as an adjective, it describes a constitutive element or system capable of facilitating or executing a water landing.
- Empennage — The structural assembly of aerodynamic stabilizing surfaces usually located at the rear section of an aircraft fuselage or body, consisting of the horizontal empennage (stabilizer and elevator) and the vertical empennage (fin and rudder). This design layout has the core function of ensuring directional stability, longitudinal stability, and flight control maneuvers during path tracking.
- Anti-icing — A system, device, or technical method utilized to prevent the formation and accretion of ice (icing) on the surfaces of an aircraft or industrial installations exposed to low temperatures. Unlike de-icing, which removes already formed ice, anti-icing operates proactively through thermal, pneumatic, or fluid methods.
- Anti-icing — A technical system, device, or assembly of measures used to prevent the formation and accumulation of ice (icing) on aircraft surfaces, in pipelines, or on sensitive elements of industrial installations. In a structural sense, it acts preventively through thermal or pneumatic heating, or by continuously injecting special chemical substances before freezing occurs.