A modified design concept, utilizing deck motion prediction, for the A-7E automatic carrier landing system.
Judd, Thomas Maxwell
Hess, Ronald A.
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The present concept of automatic carrier landings, Mode I operational capability, as employed in Navy carrier-based aircraft, was investigated. The aircraft chosen for study was the A-7E. The A-7E All Weather Carrier Landing System (AWCLS) and the carrier landing environment including burble effects and deck motion were simulated. Height of hook above ramp, touchdown point, and velocity of impact dispersions were determined. The current system was then modified, utilizing the concept of a SPN-42 Deck Motion Compensation Lead Computer which operates on the basis of known aircraft characteristics and predicted carrier heave motion. Simulation showed that automatic carrier landing performance as measured by number of ramp strikes, hard landings, and bolters could be improved, The modifications suggested require only a minimum of component additions to the AWCLS currently in use in the Navy.
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