VoltAero has successfully flown its hybrid-electric Cassio testbed using 100 percent sustainable aviation fuel (SAF) provided by TotalEnergies, the French start-up announced on September 21. According to the French start-up, this was the first time any aircraft with a hybrid-electric powertrain has flown on pure SAF, a biofuel that is typically blended with traditional jet fuel.
The company’s Cassio technology demonstrator, a modified Cessna 337 Skymaster, took off from VoltAero’s development facility in Royan, France on September 8. It was filled with TotalEnergies’ Excellium Racing 100, a biofuel made from winemaking waste collected in French vineyards, according to VoltAero. The same fuel has been used in automobile races since 2022 and reduces carbon dioxide emissions by at least 65 percent over its entire life cycle when compared with fossil fuel equivalents.
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