The Kestrel K-350 or Kestrel (previously the Kestrel JP10) is a high-performance, single engine turboprop, all-composite, six-seat aircraft. The proof-of-concept (POC) first flew on 29 July 2006 and by April 2010, registered N352F, had logged about 260 hours. The POC uses a Pratt & Whitney PT6-67A turboprop engine flat rated to . In 2011 the company selected the Honeywell TPE331-14GR engine as first choice for the aircraft, also flat rated to approximately . The original company, formed in 2002 to build the aircraft, was started by Richard Noble who was responsible for the team that first broke the sound barrier on land. Noble envisioned the aircraft's primary role as being part of a fleet of "air taxis" in Europe, provided as an alternative to both commercial airlines and chartered corporate jets. He named his Farnborough, England-based company "Farnborough Aircraft" and the design for the then-designated "F1" was detailed. The company was later moved to the United States and the name changed to "Kestrel Aircraft Company", with the aircraft's designation changing from "F1" to "JP100", to "JP10", and is now the "K-350". In April 2015 the company was merged with Eclipse Aerospace to form One Aviation, which entered a Chapter 7 bankruptcy liquidation process in February 2021. Design The aircraft's layout is low-wing with a conventional tail. The tricycle undercarriage is fully retractable. Its construction uses composites incorporating carbon fiber. The carbon-fiber composite construction is claimed to allow a lower drag shape than does all-metal construction. The wing is also of carbon-fiber construction and features a high lift laminar flow design worked out mostly by aerodynamicist Dr. Gordon Robinson. The cabin features a club-seating arrangement, a toilet (or a possible seventh seat), and a baggage compartment in the pressurized area. In the cockpit, side window pillars are eliminated for a more unobstructed view for the pilot. Farnborough Aircraft formed a business alliance with Epic Aircraft to develop both companies' aircraft and as a result the POC aircraft appears similar to the Epic LT. The wing is reportedly the same, while the Kestrel's fuselage is 20 inches longer than the Epic's. The fuselage is also slightly wider and has a 27% greater interior volume. The window and door arrangement on the left side of the aircraft is noticeably different. Development A business partnership formed in 2006 to complete the Kestrel's development, named the Gulf Aircraft Partnership and located in the UAE, did