How does NOTAR helicopter work?

NOTAR (“no tail rotor”) is a helicopter system which avoids the use of a tail rotor. The system uses a fan inside the tail boom to build a high volume of low-pressure air, which exits through two slots and creates a boundary layer flow of air along the tailboom utilizing the Coandă effect.

Why don t more helicopters use NOTAR?

More systems translates into more parts, more complexity, more chances of failure and more maintenance, not to mention that this makes the helicopter tail heavy. For example, when using the same engine, the NOTAR MD 520N is heavier than the conventional MD 500E (from which it was developed) (Source:1, 2).

Are NOTAR helicopters better?

Designed and tested to be 50 percent quieter than any other helicopter. NOTAR-equipped helicopters are among the quietest certified helicopters available. Using the Coanda Effect to provide tail boom lift and anti-torque, the system is more stable and easier to control.

How do helicopters with no tail rotor NOTAR overcome for the torque produced by the main rotor?

Rotor Configurations Most helicopters have a single, main rotor but require a separate rotor to overcome torque which is a turning or twisting force. This is accomplished through a variable pitch, antitorque rotor or tail rotor.

Can a helicopter fly without tail rotor?

One significant advancement in the last decade has been the no-tail rotor, or NOTAR, helicopter. As you now know, vertical-lift flight is impossible without a tail rotor to counteract the torque produced by the main rotor.

How much does a MD 500 cost?

MD Helicopters MD 500E Specs

Price New $1.9M
Year Started 1983
Year Ended In Production

How much does a MD 500 helicopter cost?

What happens if helicopter tail rotor fails?

If the tail rotor fails in flight, engine torque can no longer be countered by the tail rotor, and uncontrolled spinning of the aircraft is a possibility. Most manufacturers call for an immediate autorotation. Some call for a running landing, instead.

Which is MD helicopter uses the NOTAR system?

There are just three production helicopters that utilize the NOTAR system, all produced by MD Helicopters. MD 520N Quiet and Safe. Fast and Potent. MD 600N Power. Safety. Performance. MD 902 Explorer High Performance. High Technology. Higher Standards.

What kind of helicopter is MD Helikopters MD 600N?

MD Helikopters MD 600N Specs, Interior, and Price – MD 600N is a lightweight single-engine multirole helicopter developed by MD Helicopters, United States. This helicopter can accommodate 8 passengers with high flexibility performance.

How big is the rotor on a MD 600N?

MD 600N helicopter has a six-bladed rotor with a diameter of 8.40m. The main rotor can be folded for helicopter storage. NOTAR no tail rotor system, longitudinal tailboom and fuselage give a typical MD 600N profile Kaman Aerospace supplies helicopter aircraft.

When did the MD 600N yaw system come out?

MD Helicopters developed a yaw stability augmentation system for the MD-600N to reduce pilot workload, which became available as an option from mid 2001. Substantial numbers of the MD-600N were delivered to e.g. the United States Border Patrol and the Turkish Police.