Los Angeles startup will convert single-engine aircraft to use hybrid-electric or electric powertrain technology developed by the customer itself

Cassio S testbed aircraft took off from Royan, France using bioethanol fuel from vineyard waste

Aircraft for up to five passengers will still be equipped only with a thermal engine supplied by Kawasaki and will fly for the first time at the end of 2023. Hybrid version is planned for 2024

Aircraft should enter service in 2029 with a goal of being 90% more economical than turboprops

Cessna Caravan re-powered by startup Ampaire flew for 33 minutes on its first sortie; aircraft certification expected in 2024

Manufacturer, however, said it needed a new partner after the Brazilian Air Force left the project

New generation of commercial turboprop will have hybrid-electric engines that will reduce fuel consumption by 20% compared to current models; aircraft expected to hit the market in 2030

Turboprop will support studies for a sustainable solution, capable of reducing fuel burn by 30%. Aircraft to fly for the first time in 2024

Companies have extended joint venture until 2050 and intend to study propulsion technologies with open fans, hybrid-electric and hydrogen as fuel

NASA launched Sustainable Flight National Partnership program that aims to enable aircraft capable of offering a 25% more efficient flight