[3] In 2020, Scottish regional carrier Loganair trialled the Electric EEL with 70% fuel savings for short hops and 50% for longer flights of 50-250 miles (80-400 km).
[1] In February 2021, online booking platform Surf Air Mobility attempted to acquire Ampaire, but this was abandoned by April 2022.
[1] The parallel hybrid architecture does not require recharging after each flight, to avoid being dependent on charging infrastructure.
[1] Ampaire next step would be a Dash 8 or ATR type, and ultimately a clean-sheet Tailwind with a propulsive ducted fan for boundary-layer ingestion.
[1] On 18 November 2022, Ampaire flew its Eco-Caravan maiden flight: the hybrid electric aircraft uses a RED A03 diesel engine to reduce fuel consumption by 70% on shorter trips to 50% on longer ones, retaining the Grand Caravan payload capabilities with range improved to 1,100 nmi (2,000 km); supplemental type certificate (STC) is targeted for 2024.