Advanced BioFuels USA

(Airbus) Airbus, Dassault Aviation, ONERA, the French Ministry of Transports and Safran have launched the first in-flight study of a single-aisle aircraft running on unblended sustainable aviation fuel (SAF). 

During the flight test over the Toulouse region on 28 October, one CFM LEAP-1A engine of an Airbus A319neo test aircraft operated on 100% SAF. Initial results from the ground and flight tests are expected in 2022. 

The unblended SAF is provided by Total Energies. It is made from Hydroprocessed Esters and Fatty Acids (HEFA), which primarily consists of used cooking oil, as well as other waste fats. HEFA is made of paraffinic hydrocarbons and is free of aromatics and sulfur. Approximately 57 tonnes of SAF will be used for the entire test campaign. It is produced in Normandy close to Le Havre, France. The 100% SAF will also be utilised for compatibility and engine operability studies on the Safran Helicopters Arrano engine used on the Airbus Helicopters H160, which are expected to start in 2022. 

Airbus, in collaboration with DLR, is responsible for characterising and analysing the impact of 100% SAF on ground and in-flight emissions. Safran focuses on compatibility studies related to the fuel system and engine adaptation for commercial and helicopter aircraft and their optimisation for various types of 100% SAF fuels. Safran will perform LEAP engine ground tests with 100% SAF at its Villaroche facilities later this year to complete analysis. ONERA is supporting Airbus and Safran in analysing the compatibility of the fuel with aircraft systems and will be in charge of preparing, analysing and interpreting test results for the impact of 100% SAF on emissions and contrail formation. Dassault Aviation is contributing to the material and equipment compatibility studies and verifying 100% SAF biocontamination susceptibility. 

The study – known as VOLCAN (VOL avec Carburants Alternatifs Nouveaux) – contributes to global decarbonisation efforts currently underway across the entire aeronautical industry, and is benefiting from a financing of the France Relance recovery plan, the part thereof dedicated to the decarbonisation of aviation, which is implemented by DGAC under the supervision of Jean-Baptiste Djebbari, French Minister of Transports. The study’s ultimate goal is to promote the large-scale deployment and use of SAF, and certification of 100% SAF for use in single-aisle commercial aircraft and the new generation of business.  READ MORE

First Airbus helicopter flight with 100% SAF (Biomass Magazine)

Excerpt from Biomass Magazine: An Airbus H225 has performed the first ever helicopter flight with 100 percent sustainable aviation fuel (SAF) powering one of the Safran Makila 2 engines. The flight, which took place at the company’s headquarters in Marignane, marks the start of a flight campaign aiming to assess the impact of unblended SAF on the helicopter systems in view of certifying the use of SAF blends that exceed today’s 50 percent limit.

“While all Airbus helicopters are certified to fly with up to a 50 percent blend of SAF mixed with kerosene, it is our company’s ambition to have its helicopters certified to fly with 100 percent SAF within the decade. Today’s flight is an important first step towards this goal,” said Stefan Thome, executive vice president, engineering and chief technical officer, Airbus Helicopters.

The flight campaign, which follows earlier unblended SAF bench tests performed by Safran Helicopter Engines at its Bordes plant, will provide further understanding of the technical challenges associated with the use of 100 percent SAF. The H225 test helicopter flew with an unblended SAF derived from used cooking oil, provided by TotalEnergies, which offers a net 90 percent CO2 reduction compared to regular jet fuel.

“SAF is an important pillar of Airbus Helicopters’ decarbonization strategy because it provides immediate CO2 reduction with no negative impact on the performance of the helicopter,” Thome added. “I thank our partners Safran Helicopter Engines and TotalEnergies for their important collaboration in making today’s flight a reality. Further cooperation among all industry stakeholders is essential to overcome the challenges associated with implementing SAF widely and to make real progress in reducing the aviation industry’s CO2 emissions”.

In order to drive the deployment of biofuels, Airbus Helicopters has launched a SAF User Group dedicated to the rotary-wing community. The company has also started using SAF for training and test flights at its French and German sites. READ MORE