GROUND TEST METHOD FOR AIRCRAFT AND AIR INTAKE STRAIGHTENING DUCT USED THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a ground test method for an aircraft allowing feeding a uniform air flow in an engine and an air intake straightening duct used for the method with a simple structure in a shed type aircraft ground test facility. SOLUTION: A gap C between the air intake straightening duct 10 with a predetermined shape and the engine E is set 0.05-0.2 time of an engine inlet diameter to perform the ground test for the engine E.