| Nagler NH-160 | |
|---|---|
| Role | Helicopter |
| Manufacturer | Nagler Helicopter Company |
| Designer | Bruno Nagler |
| First flight | December 1955 |
| Number built | 1 |
The Nagler NH-160 is a single place helicopter with counter-rotating blades.[1]
Contents |
Bruno Nagler started with helicopter design with wind tunnel experiments in 1926. Nagler developed the first practical use of a swash plate. The Nagler NH-120 was developed to test the concept of counter-acting rotor torque with a small separate rotor. The engine was mounter above the main rotor on a shaft, and the counter-torque rotor was mounted above it. The NH-160 changed the configuration with a conventional helicopter engine and rotor layout, with the exception of the smaller counter-torque rotor mounted under the fuselage between the landing skids.[2]
A series of disc brakes controlled differential speeds between the two rotors, allowing yaw control. A small tail surface stabilizes the aircraft in forward flight.[3]
The NH-160 proved to be much more stable in tests then the NH-120 with a higher center of gravity. The smaller lower rotor spins at a higher rpm, with about 60 percent of the load. The upper rotor is adjustable for lift control.
Data from Sport Aviation
General characteristics
Performance
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