Accession Number : AD0776316

Title :   Optimal Control Aircraft Landing Analysis.

Descriptive Note : Technical rept. Jan 72-Jul 73,

Corporate Author : AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Huber,Robert E. , Jr

Report Date : DEC 1973

Pagination or Media Count : 136

Abstract : A digital computer analysis technique was developed to predict aircraft longitudinal landing performance to touchdown. A microwave landing system provided sampled data elevation angle guidance and assumed continuous DME (distance measuring equipment) information. The linearized longitudinal equations for perturbations about trimmed flight were used for the aircraft model. Atmospheric disturbances including deterministic winds and random gusts were modeled. The deterministic gusts included headwinds and wind shears. The random gusts included longitudinal and normal gusts which were modeled as first order Gauss Markov processes. The microwave landing system noise was also included. (Modified author abstract)

Descriptors :   *AIRCRAFT LANDINGS, *LANDING AIDS, *MICROWAVE EQUIPMENT, *AUTOMATIC PILOTS, COMPUTER APPLICATIONS, MATHEMATICAL PREDICTION, PERFORMANCE(ENGINEERING), VISIBILITY, TRAJECTORIES, OPTIMIZATION, STATISTICAL ANALYSIS, MATHEMATICAL MODELS, ATMOSPHERES, NOISE(ELECTRICAL AND ELECTROMAGNETIC)

Subject Categories : Terminal Flight Facilities

Distribution Statement : APPROVED FOR PUBLIC RELEASE