Rolls-Royce is main a brand new UK analysis initiative geared toward discovering more practical methods to make use of sustainable aviation gas to cut back each carbon and non-carbon emissions, the corporate acknowledged.
The 2-year venture, referred to as Quantifying Discount in Thermal Contrails by Optimising SAF (QRITOS), is co-funded by the Non-CO2 Programme beneath the Aerospace Know-how Institute (ATI). It brings collectively Rolls-Royce, British Airways, Imperial School London, and Heathrow Airport to review how smarter deployment of sustainable aviation gas, or SAF, might scale back the local weather influence of contrails.
Whereas SAF is already recognised for its potential to chop carbon emissions in contrast with fossil jet gas, research have proven that it may additionally scale back the variety of ice crystals that kind in plane contrails. In accordance with Rolls-Royce, fewer and thinner contrails might reduce aviation’s wider local weather influence.
Alan Newby, Director of Analysis and Know-how at Rolls-Royce, stated “SAF is not going to solely play an important position in decarbonising aviation, however has additionally been proven to cut back sure non-CO2 emissions. This venture will exhibit smarter methods of utilizing SAF which might unlock further worth by decreasing non-CO2 local weather results as nicely.”
As a result of contrails are solely fashioned beneath particular climate circumstances, a lot of the local weather impact is brought on by a comparatively small variety of flights. The QRITOS venture goals to find out whether or not SAF could be prioritised for these flights more than likely to provide persistent contrails, utilizing flight trials, atmospheric modelling, and satellite tv for pc knowledge collected at Heathrow.
Marcin Dutka, Environmental Sustainability Technologist at Rolls-Royce and venture supervisor for QRITOS, stated “Measurements have already proven that gas composition can affect contrail properties. This venture goals to exhibit how contrail local weather influence could be diminished by focusing on SAF at flights predicted to kind persistent contrails.”
British Airways is contributing operational knowledge from its fleet. “At British Airways, we imagine sustainable aviation gas is central to the way forward for flying,” stated Tom Byrne, the airline’s Head of Web Zero and Atmosphere. “By way of the QRITOS venture, we’re exploring how SAF can transcend decreasing carbon emissions to additionally assist minimise the local weather influence of contrails.”
Heathrow Airport can be taking part. Matt Gorman, Director of Carbon Technique, stated “As SAF continues to scale you will need to take a better take a look at how we are able to use it to ship the best local weather profit. As one of many world’s busiest airports we’re proud to take part on this venture to exhibit how focused SAF use might assist to handle non-CO2 emissions.”
The analysis group at Imperial School London will develop new computational fashions and satellite tv for pc imaging instruments to watch contrail formation. Affiliate Professor Sebastian Eastham stated “We’ll develop and trial superior computational contrail modelling and satellite tv for pc picture evaluation strategies, with the aim of performing each prediction and close to real-time evaluation of the effectiveness of focused SAF deployment for contrail warming discount.”
Business Minister Chris McDonald described the venture for instance of collaboration between authorities and enterprise. “That is authorities and enterprise working collectively at its greatest, and I stay up for seeing how this Rolls-Royce venture might help preserve UK trade on the forefront of the race for sustainable aviation,” he stated.
In accordance with the ATI, QRITOS will conclude in April 2027 and goals to enhance forecasting strategies, advance understanding of contrail formation, and develop new methods to confirm environmental outcomes utilizing satellite tv for pc knowledge.

