Why don t more helicopters use NOTAR?
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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).
What are the disadvantages of helicopters?
Drawbacks Of Helicopters Generally, helicopters have lower top speeds than airplanes, and are more complex to fly. Helicopters are also more complex mechanically, they need more maintenance which makes them more expensive to operate and maintain than airplanes.
How much is a Notar helicopter?
MD Helicopters MD 520N Specs
| Production | |
|---|---|
| Price New | $2.6M |
| Year Started | 1992 |
| Year Ended | In Production |
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.
What are the advantages of NOTAR helicopters?
No tail rotor: use of a ducted fan within the helicopter’s body, and venting the air through the side of the tail boom to get the desired anti-torque. One big advantage is simplicity and ruggedness: no tail rotor to get damaged, no tail rotor gearbox or driveshaft to wear and/or malfunction. Another is noise: NOTAR is quieter.
What are the pros and cons of a no tail rotor helicopter?
No tail rotor: use of a ducted fan within the helicopter’s body, and venting the air through the side of the tail boom to get the desired anti-torque. One big advantage is simplicity and ruggedness: no tail rotor to get damaged, no tail rotor gearbox or driveshaft to wear and/or malfunction.
What are the pros and cons of NOTAR?
Another is noise: NOTAR is quieter. And maybe lower cost: the simpler design and fewer components moving under high torque should be less expensive to build, definitely less expensive to maintain.
What are the advantages and disadvantages of a helicopter?
The advantage of helicopter is its ability to land vertically and hover in the air. The disadvantage is that it has a much lower lift-to-drag ratio, i.e., low efficiency in forward flight. This results in lower range and speed. There is also some discomfort (higher vibrations).
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