Buffeting criteria for a systematic series of wings

In 1970, wind-tunnel measurements were made by NASA of the buffeting on a systematic series of 11 swept wings mounted on top of a simple fuselage. The wings generally had a quarter chord swept 35 deg and an aspect ratio of 6. The emphasis in the original program was on the variation in the onset of buffeting due to wide variations in the wing geometry. In the present paper, approximate criteria for the severity of buffeting have been derived from these measurements. These criteria provide a more complete picture of the effect of variations in wing geometry on the wing buffeting.