A fuel cell is an electrochemical cell that converts the chemical energy of a fuel and an oxidizing agent into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen to sustain the chemical reaction, whereas in a battery the chemical energy usually comes from substances that are already present in the battery. Fuel cells can produce electricity continuously for as long as fuel and oxygen are supplied.
A hydrogen vehicle is a vehicle that uses hydrogen fuel for motive power. Hydrogen vehicles include road vehicles, rail vehicles and hydrogen-fueled space rockets, as well as hydrogen-powered ships and aircraft. Motive power is generated by converting the chemical energy of hydrogen to mechanical energy, either by reacting hydrogen with oxygen in a fuel cell to power electric motors or, less commonly, by hydrogen internal combustion.
The Dornier 228 is a twin-turboprop STOL utility aircraft, designed and first manufactured by Dornier GmbH from 1981 until 1998. Two hundred and forty-five were built in Oberpfaffenhofen, Germany. In 1983, Hindustan Aeronautics Limited (HAL) bought a production licence and manufactured another 125 aircraft in Kanpur, Uttar Pradesh, India. In July 2017, 63 aircraft were still in airline service.
A fuel cell vehicle (FCV) or fuel cell electric vehicle (FCEV) is an electric vehicle that uses a fuel cell, sometimes in combination with a small battery or supercapacitor, to power its onboard electric motor. Fuel cells in vehicles generate electricity generally using oxygen from the air and compressed hydrogen. Most fuel cell vehicles are classified as zero-emissions vehicles that emit only water and heat. As compared with internal combustion vehicles, hydrogen vehicles centralize pollutants at the site of the hydrogen production, where hydrogen is typically derived from reformed natural gas. Transporting and storing hydrogen may also create pollutants. Fuel cells have been used in various kinds of vehicles including forklifts, especially in indoor applications where their clean emissions are important to air quality, and in space applications. Fuel cells are being developed and tested in trucks, buses, boats, ships, motorcycles and bicycles, among other kinds of vehicles.
Hydrogen technologies are technologies that relate to the production and use of hydrogen as a part hydrogen economy. Hydrogen technologies are applicable for many uses.
An electric aircraft is an aircraft powered by electricity. Electric aircraft are seen as a way to reduce the environmental effects of aviation, providing zero emissions and quieter flights. Electricity may be supplied by a variety of methods, the most common being batteries. Most have electric motors driving propellers or turbines.
Hyfish is a model hydrogen powered aeroplane developed by Koni Schafroth. The model has successfully passed test flights under battery power and Smartfish is going forward with development to a 2-man aircraft.
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.
Pipistrel d.o.o Ajdovščina is a Slovenian light aircraft manufacturer established in 1989 by Ivo Boscarol and based in Ajdovščina. Its facilities are located in Ajdovščina, Slovenia, and near the town of Gorizia, Italy. By March 2019, Pipistrel had produced more than 2000 aircraft.
This is a timeline of the history of hydrogen technology.
Lange Aviation GmbH is a German company that manufactures gliders and develops electric power-plants for other aircraft. It was founded by its present managing director, Axel Lange, in 1996 as Lange Flugzeugbau GmbH in Zweibrücken. The company currently has 42 employees. At the end of September 2007, the business was re-capitalised. Lange Faserverbundtechnik GmbH acquired all material and intellectual properties of the Lange Flugzeugbau GmbH and it continued the production of the Antares gliders at the airport at Zweibrücken. The company has operated since 2008 under the name Lange Aviation Gmbh.
The Pipistrel Taurus is a Slovenian self-launched two-seat microlight glider designed and built by Pipistrel.
The AeroVironment Global Observer is a concept for a high-altitude, long endurance unmanned aerial vehicle, designed by AeroVironment (AV) to operate as a stratospheric geosynchronous satellite system with regional coverage.
Urban Air Mobility (UAM) is the use of small, highly automated aircraft to carry passengers or cargo at lower altitudes in urban and suburban areas which have been developed in response to traffic congestion. It usually refers to existing and emerging technologies such as traditional helicopters, vertical-takeoff-and-landing aircraft (VTOL), electrically propelled, vertical-takeoff-and-landing aircraft (eVTOL), and unmanned aerial vehicles (UAVs). These aircraft are characterized by the use of multiple electric-powered rotors or fans for lift and propulsion, along with fly-by-wire systems to control them. Inventors have explored urban air mobility concepts since the early days of powered flight. However, advances in materials, computerized flight controls, batteries and electric motors improved innovation and designs beginning in the late 2010s. Most UAM proponents envision that the aircraft will be owned and operated by professional operators, as with taxis, rather than by private individuals.
Aircraft engine performance refers to factors including thrust or shaft power for fuel consumed, weight, cost, outside dimensions and life. It includes meeting regulated environmental limits which apply to emissions of noise and chemical pollutants, and regulated safety aspects which require a design that can safely tolerate environmental hazards such as birds, rain, hail and icing conditions. It is the end product that an engine company sells.
A hybrid electric aircraft is an aircraft with a hybrid electric powertrain. As the energy density of lithium-ion batteries is much lower than aviation fuel, a hybrid electric powertrain may effectively increase flight range compared to pure electric aircraft. By May 2018, there were over 30 hybrid electric aircraft projects, and short-haul hybrid-electric airliners were envisioned from 2032.
ZeroAvia is a British/American hydrogen-electric aircraft developer. The company was founded in 2017 by Valery Miftakhov, who currently serves as the company CEO. ZeroAvia is developing hydrogen-fueled powertrain technology aiming to compete with conventional engines in propeller aircraft, with an aim of zero-emission and lower noise. ZeroAvia expects to sell products by 2023 and demonstrate flights up to 500 miles (800 km) in aircraft of up to 20 seats. According to the company, by 2026, ZeroAvia intends to fly an aircraft over 500 miles range in aircraft with up to 80 seats.
Many aviation-related events took place in 2023.
