1993 年 13 巻 Supplement2 号 p. 35-38
The aircraft employing the Upper Surface Blowing(USB) system as a poweredlift technology makes use of the energy of the engine exhoust to augument wing lift. The aircraft with the USB system achieves higher powered-lift by turning full downward the engine exhaust flow. To studying powered-lift characteristics, the wakes of the semi-span aircraft model with USB Powered high lift system were measured by a taversing wake rake with 5-pitot tube in NAL 2×2m Gust Wind Tunnel.
In this report, the characteristics for the wake having different turning angle of exhaust flow are described.