Print Email Facebook Twitter Flight evaluation of curved MLS precision approaches in a Twin Otter Aircraft. Phase II Title Flight evaluation of curved MLS precision approaches in a Twin Otter Aircraft. Phase II Author Croll, J.B. Institution National Research Council Canada, Institute for Aerospace Research Date 1991-07-30 Abstract Phase II flight testing of curved, segmented approaches using a Microwave Landing System (MLS) was conducted on a Twin Otter aircraft belonging to the Canadian National Research Council's Institute for Aerospace Research (IAR). Precision guidance algorithms were developed for approaches with track angle changes exceeding 180°. Software development flights focussed on validating these algorithms and enhancing the existing electromechanical flight director to ease the pilot workload in tracking the curved segments. A limited number of pilot evaluations confirmed that with an enhanced lateral flight director, these approaches could be flown satisfactorily regardless of the magnitude of the track angle changes. Observations were made on approach design and wind effects on curved segment tracking. To reference this document use: http://resolver.tudelft.nl/uuid:58212c96-1220-4773-8475-7a1eeb682fa5 Publisher National Research Council Canada Access restriction Campus only Source Institute for Aerospace Research Aeronautical Note IAR-AN 73; NRC No. 32149 Part of collection Aerospace Engineering Reports Document type report Rights (c) 1991 National Research Council Canada Files PDF AN-73.pdf 3.67 MB Close viewer /islandora/object/uuid:58212c96-1220-4773-8475-7a1eeb682fa5/datastream/OBJ/view