Elevons or tailerons are aircraft control surfaces that combine the functions of the elevator and the aileron, hence the name. They are frequently used on tailless aircraft such as flying wings. An elevon is not part of the main wing, but instead is a separate tail surface, is a stabilator.
The NASA Pathfinder and NASA Pathfinder Plus were the first two aircraft developed as part of an evolutionary series of solar- and fuel-cell-system-powered unmanned aerial vehicles. AeroVironment, Inc. developed the vehicles under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program. They were built to develop the technologies that would allow long-term, high-altitude aircraft to serve as atmospheric satellites, to perform atmospheric research tasks as well as serve as communications platforms. They were developed further into the NASA Centurion and NASA Helios aircraft.
A conventional fixed-wing aircraft flight control system (AFCS) consists of flight control surfaces, the respective cockpit controls, connecting linkages, and the necessary operating mechanisms to control an aircraft's direction in flight. Aircraft engine controls are also considered flight controls as they change speed.
The Boeing X-48 is an American experimental unmanned aerial vehicle (UAV) built to investigate the characteristics of blended wing body (BWB) aircraft. Boeing designed the X-48 and two examples were built by Cranfield Aerospace in the UK. Boeing began flight testing the X-48B version for NASA in 2007. The X-48B was later modified into the X-48C version, which was flight tested from August 2012 to April 2013. Boeing and NASA plan to develop a larger BWB demonstrator.
Elevators are flight control surfaces, usually at the rear of an aircraft, which control the aircraft's pitch, and therefore the angle of attack and the lift of the wing. The elevators are usually hinged to the tailplane or horizontal stabilizer. They may be the only pitch control surface present, and are sometimes located at the front of the aircraft or integrated into a rear "all-moving tailplane", also called a slab elevator or stabilator.
The Northrop Grumman X-47B is a demonstration unmanned combat aerial vehicle (UCAV) designed for aircraft carrier-based operations. Developed by the American defense technology company Northrop Grumman, the X-47 project began as part of DARPA's J-UCAS program, and subsequently became part of the United States Navy's Unmanned Combat Air System Demonstration (UCAS-D) program. The X-47B is a tailless jet-powered blended-wing-body aircraft capable of semi-autonomous operation and aerial refueling.
The Northrop Grumman Switchblade was a proposed variable sweep oblique wing unmanned aerial vehicle studied by Northrop Grumman for the United States.
The EADS Barracuda was a jet powered unmanned aerial vehicle (UAV), EADS, used for the role of aerial reconnaissance and also combat. The aircraft was a joint venture between Germany and Spain.
A hydrogen-powered aircraft is an aeroplane that uses hydrogen fuel as a power source. Hydrogen can either be burned in a jet engine or another kind of internal combustion engine, or can be used to power a fuel cell to generate electricity to power an electric propulsor. It cannot be stored in a traditional wet wing, and hydrogen tanks have to be housed in the fuselage or be supported by the wing.
The BAE Systems Taranis is a British demonstrator programme for unmanned combat aerial vehicle (UCAV) technology, under development primarily by the defence contractor BAE Systems Military Air & Information. The aircraft, which is named after the Celtic god of thunder Taranis, first flew in 2013. An unmanned warplane, the Taranis is designed to fly intercontinental missions, and would carry a variety of weapons, enabling it to attack both aerial and ground targets. It uses stealth technology, giving it a low radar profile, and is controllable via satellite link from anywhere on Earth.
An adaptive compliant wing is a wing which is flexible enough for aspects of its shape to be changed in flight. Flexible wings have a number of benefits. Conventional flight control mechanisms operate using hinges, resulting in disruptions to the airflow, vortices, and in some cases, separation of the airflow. These effects contribute to the drag of the aircraft, resulting in less efficiency and higher fuel costs. Flexible aerofoils can manipulate aerodynamic forces with less disruptions to the flow, resulting in less aerodynamic drag and improved fuel economy.
The aerospace industry of the United Kingdom is the second-largest national aerospace industry in the world and the largest in Europe by turnover, with a global market share of 17% in 2019. In 2020, the industry employed 116,000 people.
The planning for the future of the Royal Air Force involves supporting ongoing British military operations, the introduction of new aircraft types including unmanned aerial vehicles, greater focus on network enabled capability and increasing interoperability with members of NATO, team tempest, and mixed crewed fighters. From the updated plans of the RAF (2021) state that the new initiative will focus on becoming carbon net-zero, with strategies such as using sustainable aviation fuels in aircraft. The RAF also are looking into investing in the maintenance of the aircraft to ensure success of future operations.
The Helios Prototype was the fourth and final aircraft developed as part of an evolutionary series of solar- and fuel-cell-system-powered unmanned aerial vehicles. AeroVironment, Inc. developed the vehicles under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program. They were built to develop the technologies that would allow long-term, high-altitude aircraft to serve as atmospheric satellites, to perform atmospheric research tasks as well as serve as communications platforms. It was developed from the NASA Pathfinder and NASA Centurion aircraft.
Ghatak is an autonomous jet powered stealthy unmanned combat air vehicle (UCAV), being developed by Aeronautical Development Establishment (ADE) of the Defence Research and Development Organisation (DRDO) for the Indian Air Force. The design work on the UCAV is to be carried out by Aeronautical Development Agency (ADA). Autonomous Unmanned Research Aircraft (AURA) was a tentative name for the UCAV. Details of the project are classified.
The Demon is an experimental unmanned aerial vehicle (UAV) developed and manufactured by British defence conglomerate BAE Systems. It has been referred to as being the world's first "flapless" aircraft.
In aeronautics, Distributed propulsion is an arrangement in which the propulsive and related air flows are distributed over the aerodynamic surfaces of an aircraft. The purpose is to improve the craft's aerodynamic, propulsive and/or structural efficiency over an equivalent conventional design.
The Clean Sky Joint Undertaking (CSJU) is a public-private partnership between the European Commission and the European aeronautics industry that coordinates and funds research activities to deliver significantly quieter and more environmentally friendly aircraft. The CSJU manages the Clean Sky Programme (CS) and the Clean Sky 2 Programme (CS2), making it Europe's foremost aeronautical research body.
The Future Offensive Air System was a study to replace the Royal Air Force's strike capability, at the time provided by the Tornado GR4. Initial operational capability was expected around 2017. The FOAS was cancelled in June 2005 and was replaced by the Deep and Persistent Offensive Capability (DPOC) requirement, which was itself cancelled in the 2010 Strategic Defence and Security Review.
