Abstract
Based on the dimension theory, this paper deduces the similarity relationships of prototype aircraft and scaled-model aircraft. American army standard AR-40A is an automatic carrier landing system design criterion generally used but not applicable for scaled-model aircraft any more. The essay proposes the adjustment method of frequency-domain characteristics boundary for AR-40A to meet the requirement of scaled-model aircraft based on comparisons of frequency-domain characteristics between prototype aircraft and scaled-model aircraft. Automatic carrier landing system for scaled-model aircraft with scale ratio of 4 referring to adjusted AR-40A and its corresponding prototype aircraft are designed. The carrier landing simulation results show that the scaled model aircraft ACLS designed by referring to the adjusted AR40A criteria is successful, which proves that the adjustment method of automatic carrier landing system design criterion proposed in this paper is correct.
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