SUBSONIC WIND-TUNNEL INVESTIGATION OF A TWIN-ENGINE ATTACK AIRPLANE MODEL HAVING NONMETRIC POWERED NACELLES

摘要

A 1/10-scale powered model of a twin-engine attack airplane was investigated in the Langley high-speed 7- by 10-foot tunnel. The study was made at several Mach numbers between 0.225 and 0.75 which correspond to Reynolds numbers, based on the mean aerody¬namic chord, of 1.35 x 106 and 3.34 x 106. Unheated compressed air was used for jet simulation in the nonmetric engine nacelles which were located ahead of and above the horizontal stabilizer.