The NASA X-57 Maxwell was an experimental aircraft being developed by NASA, intended to demonstrate technology to reduce fuel use, emissions, and noise. The first flight of the X-57 was scheduled to take place in 2023, but the program was cancelled due to problems with the propulsion system.

The Tecnam P2006T is an Italian high-winged twin-engined all-metal light aircraft, built by Costruzioni Aeronautiche Tecnam based in Capua, Italy, near Naples. The P2006T received airworthiness certification in the European Union by EASA under CS23 in 2003, type certification in 2009, and Federal Aviation Administration FAR Part 23 certification in 2010.