CFM International RISE

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RISE
Type
Open rotor engine
National origin France and United States
Manufacturer CFM International
Status Under development

The CFM International RISE ("Revolutionary Innovation for Sustainable Engines") is an

sustainable aviation fuels, and it plans to achieve a 20% reduction in fuel burn and in carbon dioxide emissions compared to its predecessors.[1][2][3]

Development

Background

The 1973 oil crisis increased oil prices in the 1970s, which caused engine manufacturers to research new technologies to reduce fuel burn, including open rotor (also known as propfan) engines. However, none of those designs made it to production aircraft, mostly due to decreasing oil prices and concerns over the high noise footprint of those engines.[4][5][6]

Both Safran and GE Aviation had experimented with open rotor based engine designs in the years before the RISE project was announced. Safran had performed ground tests for an open rotor engine in 2019 as a part of the

GE36 engine at the start of the 2010s in collaboration with the Federal Aviation Administration.[1][6]

Program announcement

CFM International announced the RISE program in June 2021 as an intended successor of the

Farnborough Airshow in July of that year, CFM International and Airbus announced plans to start flight tests for the RISE engine on an Airbus A380-based testbed in 2026.[7][8]

In June 2023, General Electric tested the first rotating components of the new engine, mating the first high-speed, low-pressure turbine stage to a

GE Passport gas generator.[10]

Design

Unlike the GE36 and

thrust reverser.[12] The RISE will also use a recuperator, which captures waste heat from the exhaust gas to pre-heat the air that exits the compressor before it enters the combustor.[10]

Applications

See also

Related development

Related lists

References

  1. ^ a b c Norris, Guy (June 14, 2021). "CFM Unveils 'Open Fan' Demonstrator Plan For Next-Gen Engine". Aviation Week Network. Retrieved February 26, 2023.
  2. ^ Huston, John (June 17, 2022). "Boeing Keeps an "Open Mind" on RISE Engine Technology". Airways Magazine. Retrieved February 26, 2023.
  3. ^ Gates, Dominic (June 15, 2021). "'Open Rotor' engine for sustainable aviation". techxplore.com. Retrieved February 28, 2023.
  4. ^ "The Short, Happy Life of the Prop-fan". Smithsonian Magazine. Retrieved February 28, 2023.
  5. ^ Georgilidakis, Spyros (February 27, 2021). "Safran Open Rotor – The Next Engine Design Leap?". Mentour Pilot. Retrieved February 28, 2023.
  6. ^ a b Fehrm, Bjorn (January 3, 2020). "Bjorn's Corner: Why e in ePlane shall stand for environment, Part 3. Open rotor revisited". Leeham News and Analysis. Retrieved February 28, 2023.
  7. ^ a b Fehrm, Bjorn (June 14, 2021). "CFM announces the RISE engine program". Leeham News and Analysis. Retrieved February 26, 2023.
  8. ^ Norris, Guy (July 19, 2022). "Airbus To Flight-Test CFM RISE Open Rotor". Aviation Week Network. Retrieved February 26, 2023.
  9. ISSN 0005-2175
    . Retrieved December 4, 2023.
  10. ^
    ISSN 0005-2175
    . Retrieved December 4, 2023.
  11. Avio Aero
    people's magazine.
  12. ISSN 0745-9696
    .
  13. ^ Beresnevicius, Rytis (June 22, 2023). "CFM's open fan RISE engine to power Boeing X-66A". AeroTime. Retrieved July 26, 2023.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=CFM_International_RISE&oldid=1230605307"