PRELIMINARY DATA AT A MACH NUMBER OF 2.40 OF THE CHARACTERISTICS OF FLAP-TYPE CONTROLS EQUIPPED WITH PLAIN OVERHANG BALANCES

摘要

An investigation has been made at a Mach number of 2.40 to deter-mine the aerodynamic characteristics of plain overhang balances on flap type controls. The tests were made on an essentially two-dimensional wing in conjunction with three trailing-edge flaps having balance lengths of 38, 60, and 82 percent of the flap chord. The effect of wing-flap gap size was investigated for the flap with the 38-percent balance.