The report describes tests to obtain direct measurements of the aerodynamic effects of aspect ratio and sweepback on wing flutter. The tests were made on rigid wings with root flexibilities. It is shown that measured effects ...

Details are given of tests to measure the aerodynamic coefficients for a rectangular wing with a fullspan aileron oscillating in modes of wing roll and aileron rotation. A new technique was used in which aileron rotation ...

The 'fixed-root' flexure-torsion flutter characteristics of four model wings of different taper ratios have been investigated in the wind tunnel. The wing inertia axis and the angle of sweepback have been varied on each ...

This report gives the results of tests on flutter models of untapered wings with 20 deg, 40 deg and 60 deg sweepback. Tests have been made up to a Mach number of 1.4. A comparison is made between the measured flutter speeds ...