The MD Helicopters MD 600N is a light utility civilian helicopter designed in the United States. It is a stretched eight-seat development of the five-seat MD 520N helicopter. McDonnell Douglas Helicopter Systems (MD Helicopters since 1999) first announced it was developing a stretched MD 520N in late 1994, at that time designated the MD 630N. The prototype, a modified MD 530F, had made its first flight on November 22, 1994. McDonnell Douglas gave the go-ahead for the production aircraft, redesignated the MD 600N, in March 1995.
McDonnell Douglas stretched the MD 520N fuselage by inserting a plug aft of the cockpit/cabin bulkhead and stretching the NOTAR tail boom. The larger fuselage allows for an extra (middle) row of seats. Other differences compared with the MD 520N include a new six blade main rotor (the MD 520N has a five blade unit) and an uprated Allison (now Rolls-Royce) Model 250 turboshaft.
The prototype was modified to MD 600N standard with a production standard engine and tail boom and flew in November 1995, followed the next month by the first MD 600N production prototype. Certification was awarded on May 15, 1997, and deliveries began that June.
On March 8, 2017, MD Helicopters unveiled a concept variant known as the MD 6XX. Unlike the MD 600, the MD 6XX utilizes a traditional tail rotor and shares its T-tail design with the smaller MD 500/530F. It is currently in development, with certification originally expected in 2020. Howver, certification has been delayed indefinitely.
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Some missions require more from a helicopter. More speed. More power. More payload. More productivity. These missions require the MD 600N. The MD 600N boasts the outstanding handling qualities typical of all MD products, enhanced by a six-blade main rotor system. This makes the MD 600N exceptionally agile and smooth – superior for service in a variety of mission profiles.
Capacity: 8 total
Length: 35 ft 5 in (10.80 m)
Height: 8 ft 9 in (2.67 m)
Empty weight: 2,100 lb (953 kg)
Max takeoff weight: 4,100 lb (1,860 kg)
Main rotor diameter: 27 ft 6 in (8.38 m)
Main rotor area: 594.03 sq ft (55.187 m2)
Maximum speed: 152 kn (175 mph, 282 km/h)
Cruise speed: 135 kn (155 mph, 250 km/h)
Range: 357 nmi (411 mi, 661 km)
Service ceiling: 18,700 ft (5,700 m)
Rate of climb: 2,070 ft/min (10.5 m/s)
The MD Helicopters MD 600N is a light utility civilian helicopter designed in the United States. It is a stretched eight-seat development of the five-seat MD 520N helicopter.