The Anonymous Widower

First In-flight 100% Sustainable-Fuels Emissions Study Of Passenger Jet Shows Early Promise

The title of this post, is the same as that of this press release from Rolls-Royce.

This is the introductory paragraph.

Initial findings from a world-first study of the impact of 100% sustainable aviation fuel (SAF) on both engines of a commercial jet have provided promising early results.

The study was performed using an Airbus A350, which is powered by Rolls-Royce Trent XWB engines.

This paragraph describes the tests.

In April, the A350 flew three flights over the Mediterranean Sea pursued by a DLR Falcon chaser plane to compare in-flight emissions of both kerosene and Neste’s hydro-processed esters and fatty acids (HEFA) sustainable fuel. The team also carried out compliance tests using 100% SAF and no operational issues were experienced.

I was surprised, when I first read this, that they used a chase plane to measure emissions, as I thought they’d simulate that in a test cell on the ground.

But this is probably, the best way to test the engines, whilst running on sustainable aviation fuel, in real-world conditions.

Conclusion

I believe that sustainable aviation fuel (SAF) will be the interim solution to flying until hydrogen-powered aircraft are developed.

November 30, 2021 - Posted by | Transport/Travel | , , , ,

2 Comments »

  1. The danger of messing with aviation fuels is one of common mode failure if the fuel system clogs either with congealed components, contaminants or [frozen] water.

    A previous near disaster was only averted due to quick thinking by the pilot.

    https://en.wikipedia.org/wiki/British_Airways_Flight_38#Probable_cause

    Comment by R. Mark Clayton | December 1, 2021 | Reply

    • I am sure that Rolls-Royce are checking that out!

      Comment by AnonW | December 1, 2021 | Reply


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