The Effect of Mass Distribution on the Lateral Stability Ce4racteristics of an Airplane as Determined by of a Model in the Free-flight Tunnel
نویسنده
چکیده
Tlie e$ect8qf nums distribution on t?ateralstability and cm trol characte~tim ~f an airpihw hoe been detmwined by flighi trots of a model in tlw NACA jreeJ&@t tunnel. In the inveetig~ion, the rolling and yawing momenti of inertia were incremdjrom normal vulwa to calutx up tojive times normal. For each moment-of-inertia condition, combina$ionaof dihedral and verticu.1-tail area representing a variety of airplane conjiguratione were @ted. The results of the$ight tew%of the model were comelutedwith cal.culaiedstabdity and controi!churactenkti.csand, in general, good agreement was obtained. Tha te$i%showed the jo.!.bwing effects of kcrewed rolling and ya+ng momem%of inertia no appreciable change in spiral 8tabdity; reductti in 08cU-
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