The Embraer Legacy 450/500 and Praetor 500/600 are a family of mid-size and super mid-size business jets built by Brazilian aircraft manufacturer Embraer. The aircraft family was launched with the Legacy 500 in April 2008 and were the first jets in the size category to feature a flat-floor stand-up cabin and fly-by-wire. The Legacy 500, with a range of 3,125 nautical miles [nmi] (5,790 km; 3,600 mi) and room for up to 12 passengers, first flew on November 27, 2012, and was certified on August 12, 2014. The shorter Legacy 450 first flew on December 28, 2013, was certified on August 11, 2015, has a range of 2,900 nmi (5,370 km; 3,340 mi), and can accommodate up to 9. The Praetor 500 and 600 are improvements of the Legacy 450 and 500, respectively, introduced in October 2018 offering more range. The Praetor 600 has a range of 4,018 nmi (7,440 km; 4,620 mi), while the Praetor 500 has a range of 3,340 nmi (6,190 km; 3,840 mi). Embraer introduced improved variants at the October 2018 NBAA convention, the Praetor 500 and 600, presented on display, with 3,250 nmi (6,020 km; 3,740 mi) and 3,900 nmi (7,200 km; 4,500 mi) of range; the 600 was expected to be certified in the second quarter of 2019 and the 500 in the third quarter of 2019. Both have 22 by 50 in (56 by 127 cm) taller and wider winglets. The $17 million Praetor 500 boosts the fuel capacity of the Legacy 450 from 12,108 to 13,058 lb (5,492 to 5,923 kg) to match the Legacy 500. The $21 million Praetor 600 is based on the Legacy 500 with two tanks on the fuselage belly for 2,928 lb (1,328 kg) more fuel for a 15,986 lb (7,251 kg) capacity, and more powerful 7,528 lbf (33.49 kN) HTF7500E engines. Praetor 600 flight testing began on 31 March 2018 and 300h were logged with three aircraft by October 2018, while the Praetor 500 flight tests began on 13 September 2018 with 80h accumulated. The synthetic vision system has a flight guidance system for CAT I airports approach with SBAS, allowing decision height to be reduced from 200 to 150 ft (61 to 46 m). Within US SBAS zones, the synthetic vision guidance system (SVGS) allows autopilot-flown instrument approaches down to 150 ft (46 m) height and 1,300 ft (400 m) RVR without the optional Rockwell Collins EVS and HUD. They are low wing, T-tail airplanes with cabin pressurization, powered by two rear mounted turbofans. The landing gear is fully retractable and designed to be operated on paved runways only. The glass cockpit includes four multi-function displays. The operation is made through a flight management system with autopilot, autothrottle and closed-loop control and monitoring of flight controls Fly-By-Wire. The aircraft are certified for Day, Night, VFR and IFR flights, and are approved for reduced vertical separation minima (RVSM) airspace and flight into known icing conditions, extended flight over water, Category II ILS, operations at high altitude airports up to 13800 ft and steep approach operations. Embraer offers an enhanced flight vision system constituted by the Rockwell Collins HGS-3500 Head-up display combined with the EVS-3000 Infrared camera, permitting a decision altitude necessitating visual references of 100 ft above touchdown at a projected price of $515,000. Federal Aviation Administration's draft AC 20-167A further proposes a descent below 100 ft if the required visual references can be observed using the EFVS, similar to Cat II and III approaches with limited instrument landing systems in many small airports. Number built 251 Praetor 500 : 42 (as of 26 April 2023) Praetor 600 : 71 (as of 26 April 2023) Legacy 500 : 80 (as of 26 April 2023) Legacy 450 : 58 (as of 26 April 2023) For operational history and details of variants, , click here. Specifications below are for the Praetor 600. Legacy 450 Legacy 500 Praetor 500 Praetor 600