Correlation of forebody pressures and aircraft yawing moments on the X-29A aircraft at high angles of attack

In-flight pressure distributions are presented at angles of attack from 15 deg to 66 deg and at Mach numbers from 0.22 to 0.60 at four fuselage stations on the forebody of the X-29A aircraft. Forebody yawing moments are obtained from the integrated pressure distributions and the results are correlated with the overall aircraft yawing moments. Yawing moments created by the forebody were not significant until an angle of attack of 50 deg or above and correlated well with the aircraft left yawing moment.