Flare Cue Symbology for Zero-Zero Weather Landings
GENERAL DYNAMICS ADVANCED INFORMATION ENGINEERING SERVICES INC DAYTON OH
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When flying an airplane, landing is arguably the most difficult task a pilot can do. This applies to pilots of all skill levels particularly as the level of complexity in both the aircraft and environment increase. Current navigational aids, such as an instrument landing system ILS, do a good job of providing safe guidance for an approach to an airfield. These aids provide data to primary flight reference PFR displays on-board aircraft depicting through symbology what the pilots eyes should be seeing. Piloting an approach under visual meteorological conditions VMC is relatively easy compared to the various complex instrument approaches under instrument meteorological conditions IMC which may include flying in zero-zero weather. Perhaps the most critical point in the approach is the transition to landing where the rate of closure between the wheels and the runway iscritical to a smooth, accurate landing. Very few PFRs provide this flare cue information. In this study we will evaluate examples of flare cueing symbology for use in landing an aircraft in the most difficult conditions. This research is a part of a larger demonstration effort using sensor technology to land in zero-zero weather at airfields that offer no or unreliable approach guidance. Several problems exist when landing without visual reference to the outside world. One is landing with a force greater than desired at touchdown and another is landing on a point of the runway other than desired. We compare different flare cueing systems to one another and against a baseline for completing this complex a roach task.
- Navigation and Guidance
- Non-Radio Communications