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Within only a few short months of fitting the Leica ALS60 sensor and RCD105 camera into WR&D’s Bell 206L Long Ranger helicopter, Grigsby and his colleague Alan Moore, a project engineer, were testing the solidity of that risk in the Colorado canyon, meandering the narrow corridor and hugging its walls - at times to within 200 feet - at varying speeds, direction and changes in elevation to survey an existing power line.
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