Back McDonnell Douglas MD 600N
1994

McDonnell Douglas MD 600N

In November 1994, McDonnell Douglas announced their plans to develop an eight-place version of their popular MD520N helicopter. They surprised the world's press in January 1995 when they flew their new helicopter to Heli-Expo 95 in Las Vegas, Nevada. The aircraft first flew on 22 November 1994 and the company developed and tested the MD600, initially designated the MD630N, in almost total secrecy. After their public debut at Heli-Expo the first year's production was sold out on the first day.

The MD600N is a 7-8 place derivative of their popular MD520N and features a six-blade main rotor, more powerful Allison 250-C30 turbine and new drive system capable of handling the aircraft's increased power. With a maximum gross weight of 1850kg, the MD600N is expected to dominate the light single-turbine helicopter market and is expected to be with the first customer by late 1996.

P.Allen "The Helicopter", 1996

McDonnell Douglas MD 600N

TYPE: Light utility helicopter.

PROGRAMME: Stretched version of MD 520N. Announced as 'concept', 8 November 1994; prototype, then known as MD 630N (N630N, converted from MD 530F demonstrator), first flight 22 November 1994, 138 days after project approval; public debut at Heli-Expo in Las Vegas January 1995; production go-head 28 March 1995, at which time designation changed to MD 600N; prototype first flown with production standard engine and rotor system 6 November 1995; production prototype (N600RN) first flown 15 December 1995, and became certification test vehicle leading to FAR Pt 27 certification, but was destroyed in ground fire 28 May 1996, following emergency landing after rotor/tailboom strike during abrupt control reversal tests. This resulted in changes to tailboom/rotor clearance; third prototype (N605AS) flown 9 August 1996; further accidents to N630N on 4 and 21 November 1996 and on 18 January 1997, all during autorotational descents, culminated in total loss and delayed certification and first delivery, originally scheduled for 18 December 1996, to 15 May and 6 June 1997, respectively. MD 600N certified on MD500 certificate.

In July 1998, Boeing completed a year-long envelope expansion programme for the MD 600N leading to FAA approval for operation at a density altitude of 2,135m at a T-O weight of 1,746kg and at a density altitude of 1,220m at a T-O weight of 1,860kg. Other performance enhancements approved by the FAA included provision for doors-off operation at speeds up to 213km/h, operation at temperatures -40°C/52°C, lifting up to 968kg on the external cargo hook, making slope landings up to 10° in any direction, operation with emergency floats and for installation of a movable landing light and additional wire strike protection on the fuselage. The MD 600N also completed HIRF trials at NAS Patuxent River, Maryland. Yaw-stability augmentation system (Y-SAS) under development during 2000, aimed at reducing pilot workload during extended flights and in turbulent conditions; Y-SAS was expected to be available from March 2001, following FAA certification, and will be field-installable.

CUSTOMERS: Total of 68 registered by May 2003. Launch customer AirStar Helicopter of Arizona (two, of which first delivered 6 June 1997); Saab Helikopter AB of Sweden and Rotair Limited of Hong Kong ordered one each in June 1995; other customers include Guangdong General Aviation Company (GGAC) of the People's Republic of China, which took delivery of one MD 600N in November 2000, during Airshow China 2000 in Zhuhai, Los Angeles County Sheriff’s Department Aero Bureau (three), Orange County, California, Sheriff’s Department, Indianapolis, Indiana. Police Department (one), Presta Services of France (one), Turkish National Police, which ordered 10 in December 2000 for delivery during 2002 (subsequently postponed to 2003), UND (University of North Dakota) Aerospace (one), West Virginia State Police (one) and the US Border Patrol (45, of which 11 delivered by end of 1998. when procurement halted pending evaluation of UAVs for border patrol role). Deliveries totalled 15 in 1997, 21 in 1998, six in 1999, seven in 2000, two in 2001 and two in 2002.

COSTS: US$1.315 million (2002). Direct operating cost US$269 per hour (2002).

DESIGN FEATURES: Stretched MD 520N airframe (less than 1% new parts) by means of 0.76m plug aft of cockpit/cabin bulkhead and 0.71m plug in tailboom, combined with more powerful engine, uprated transmission and six-blade main rotor. Cabin has flat floor to assist cargo handling, and will feature quick-change interior configurations to suit multiple-use operators. Intended for civil, utility, offshore, executive transport, medevac, aerial news gathering, touring, law enforcement and other noise-sensitive operations; also adaptable for armed scout, utility and other military missions.

Description generally as for MD 520N except as follows:

POWER PLANT: One 603kW Rolls-Royce 250-C47M turboshaft, derated to 447kW for T-O (5 minutes) and 395kW maximum continuous, with FADEC. Transmission manufactured from WE43A magnesium alloy for lower weight, greater strength and enhanced corrosion resistance, rating 447kW. Fuel contained in two crashworthy bladder tanks in lower fuselage, total capacity 440 litres, of which 434 litres are usable.

ACCOMODATION: Standard seating for eight, including pilot, in 3+3+2 configuration with centre bench; alternative six-seal club and coach layouts; utility with main cabin seats removed; EMS with accommodation for pilot, one stretcher case and two medical attendants; or electronic news gathering, with accommodation for pilot and passenger in cockpit and operator with cabin and monitor in cabin. All facilitated by quick-release seat mechanisms. Two removable centre-opening doors on each side of cabin; door to cockpit on each side. Bubble "comfort" windows and sliding windows for cabin, custom soundproofing and Integrated Flight Systems Inc air conditioning optional.

SYSTEMS: Electrical system comprises 28V 200Ah starter-generator and 28V 17Ah Ni/Cd battery. 24V auxiliary power receptacle inside starboard cockpit door standard.

AVIONICS: To customer's choice, including VHF/UHF/ FM/AM transceivers, GPS, transponder, ELT, intercom, stereo tape system and PA system.

EQUIPMENT: Optional equipment includes dual controls, particle separator, heated pitot tube, rotor brake, cargo hook, wire strike kit and emergency floats.

Jane's All the World's Aircraft, 2004-2005

McDonnell Douglas MD 600N

Technical data for MD 600N

Engine: Allison 250 C47 turboshaft, rated at 589kW, main rotor diameter: 8.4m, length with rotor turning: 11.2m, height: 2.9m, take-off weight: 1860-2123kg, empty weight: 875kg, max internal payload: 984kg, max external payload: 1247kg, max speed: 282km/h, cruising speed: 248km/h, service ceiling: 6100m, hovering ceiling, IGE: 3200m, hovering ceiling, OGE: 2875m, range: 335km, endurance: 3.7h,

Comments 
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nek, e-mail, 07.10.2015

it is necessary for my diploma proctitis, thank you very much)

nek, e-mail, 07.10.2015

who have the technical operation of helicopters md 600N send me by email please

CARLOS, e-mail, 26.08.2011

Wanted - Allison 250-C47 Complete engines or modules in any condition

soccer, e-mail, 16.06.2011

Finding engines and modules for rent or exchange.

Joseph, e-mail, 04.05.2011

Hi, just want to know if there's other supplier for MD600 air conditioning unit/kit other than "Integrated Flight Systems". Hope to have an answer/idea as soon as possible.

Thanks!

APHENGINES, e-mail, 02.09.2009

FOR SALE:
RR ALL 250C20 ENGINE
RR ALL 250C20B ENGINE
RR ALL 250C30P ENGINE

PLS CONTACT US FOR MORE DETAILS

YOSI, e-mail, 23.08.2009

Dear A/C / Helicopter Operator,

My name is Yosi and I am a retired Air Force officer specialized in aircrafts engines and logistics.

In a period of economic crisis as the world faces now, it seems to be reasonable that companies are looking for alternatives in order to reduce their expenditures; therefore, I would like to offer you my assistance as follows:
*Finding overhauls and repair facilities for your turbo shaft / turbo prop engines & modules.
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I don't charge commission from A/C owners and operators.
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ted, e-mail, 09.01.2008

Hi
Please send me information of generator of MD 600N.

Do you have any comments concerning this aircraft ?

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