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  2. Hydrogen-powered aircraft - Wikipedia

    en.wikipedia.org/wiki/Hydrogen-powered_aircraft

    The hydrogen-powered Tu-155 prototype made its first flight on 15 April 1988.. 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.

  3. Environmental impact of aviation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Berger predicts a 24% CO 2 share for aviation by 2050 if fuel efficiency improves by 1% per year and if there are no electric or hybrid aircraft, dropping to 3–6% if 10-year-old aircraft are replaced by electric or hybrid aircraft due to regulatory constraints, starting in 2030, to reach 70% of the 2050 fleet. [85]

  4. Tupolev Tu-155 - Wikipedia

    en.wikipedia.org/wiki/Tupolev_Tu-155

    The Tu-155 was a hybrid, only one of its three Kuznetsov NK-8 engines (they are now called NK-88) was actually powered by hydrogen. [2] The fuel tank was located in the air-blown (or nitrogen) rear compartment. A distinctive feature of the aircraft is that the protrusion of the ventilation system is visible on the tail (near the no. 2 engine).

  5. Energy Transition in Motion (Week of Dec. 2, 2022): Hydrogen ...

    www.aol.com/news/energy-transition-motion-week...

    Here’s a look at some of this week’s renewable energy news including development of a hydrogen-powered aircraft plus a world aviation first by Britain’s Rolls-Royce.

  6. DLR HY4 - Wikipedia

    en.wikipedia.org/wiki/DLR_HY4

    HY4 is a four seat hydrogen fuel cell powered aircraft. It made its maiden flight on 29 September 2016 from Stuttgart Airport, powered by gaseous hydrogen.It was designed by DLR Institute of Engineering Thermodynamics of the German Aerospace Center, [2] [3] [4] based on the Taurus G4, manufactured by Pipistrel.

  7. Aircraft engine performance - Wikipedia

    en.wikipedia.org/wiki/Aircraft_engine_performance

    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.

  8. Hydrogen internal combustion engine vehicle - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_internal...

    These hydrogen engines burn fuel in the same manner that gasoline engines do. The theoretical maximum power output from a hydrogen engine depends on the air/fuel ratio and fuel injection method used. The stoichiometric air/fuel ratio for hydrogen is 34:1. At this air/fuel ratio, hydrogen will displace 29% of the combustion chamber leaving only ...

  9. ZeroAvia - Wikipedia

    en.wikipedia.org/wiki/ZeroAvia

    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. [1] 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. [2]