In 2000, MD Helicopters announced enhancements to the MD 520N, including an improved Rolls-Royce 250-C20R+ engine with 3% to 5% more power for better performance on warm days, and changes to the diffuser and fan rigging, also increased range.

The MD 520N is one of just three helicopters – all manufactured by MD Helicopters, Inc. – to feature the exclusive NOTAR® system for anti-torque and directional control. By replacing conventional tail rotors with the NOTAR system, the margin of safety immediately increases for crew and aircraft, and the noise decreases; making it an ...

md 520n By replacing conventional tail rotors with the exclusive NOTAR system, the margin of safety immediately increases for crew and aircraft, and the noise decreases. Exclusive NOTAR® Anti-Torque System

The MD 520N is an agile and nimble helicopter that boasts a flight performance unparalleled by any other light twin in the world. It was designed to combine the maneuverability of single-engine helicopters with the speed, power, and efficiency of larger multi-engine models.

The MD 520N is one of just three helicopters – all manufactured by MD Helicopters, Inc. – to feature the exclusive NOTAR ® system for anti-torque and directional control.

The MD 520N turbine engine allows easy configuration conversion from a five-place personnel transport to a utility helicopter. The 450-shp Rolls-Royce Model 250-C20R/2 turbine-engine-powered MD 520N includes a fully articulated five-blade main rotor system and the no …

The MDHI MD 520N is a commercial FAA Type Certified aircraft under Code of Federal Regulations (CFR) Title 14, Part 27. The MD 520N was initially certified on September 1991.

The MD Helicopters MD 520N is a high-performance, light utility helicopter that stands out for its unique NOTAR® (NO TAil Rotor) system. Developed from the MD 500 series, the MD 520N eliminates the need for a traditional tail rotor by using a …

The MD 520N is one of just three helicopters – all manufactured by MD Helicopters, Inc. – to feature the exclusive NOTAR system for anti-torque and directional control.

Mar 5, 1992 · Last September 17, the MD 520N became the first new helicopter in almost a decade to receive FAA type certification. It also became the first single- main-rotor helicopter without a tail rotor for antitorque and directional control to enter production.