Upper Levels
HELLAS
Terrain/Obstacle Collision Avoidance System
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General Information
HELLAS is the only licensed obstacle warning system in service. It detects obstacles such as cables and power lines down to the size of telephone wires and warns by optical and acoustic signals.
Key Features
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Object Detection: Terrain features, poles, especially thin wires
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Fit for use in various helicopter types (civil and military).
References
In service with German Federal Border Guard and Royal Thai Air Force.
