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Report presenting flutter data obtained with the use of rocket-propelled vehicles in the transonic and low supersonic speed ranges for three low-aspect-ratio, highly tapered, swept wings. Structural influence coefficients were obtained for each of the three plan forms and calculated mode shapes and frequencies are provided. Time histories for each of the configurations also demonstrate the flutter pattern of each wing.

Report presenting tests on two 60 degree sweptback wings of aspect ratios 2 and 3 to provide information on the influence of leading-edge radius on the static longitudinal stability characteristics of swept wings.

Memorandum presenting results of three-component force tests of a cylindrical body with an ogival nose equipped with panel-type drag brakes each covering approximately 21 percent of the body circumference and located on opposite sides of the body at the rear end. Results regarding the drag brakes in the horizontal plane, drag brakes in the vertical plane, comparison of drag brakes, and minimum drag are provided.

The tendency for Austenitic Stainless Steels to develop cracks may be considered to be a function of several variables. Chemical composition of the electrode and base metal, are variables which have been reported to greatly influence the final behavior of the weld. Two types of electrodes, Type 308L and Type 347, were compared with respect to their respective crack sensitivities. Also, comparative results were desired between the 308L-15 (DC) and 308L-15 (AC-DC) type electrodes. At present, no standard test has been designed that will yield quantitative results as to the crack-resistant properties of a weld. With this in mind, the "Arcos Segmented Circular-Groove Notch Sensitivity Test" was chosen as the test to be used, since other investigations have employed the test and some comparison of results could be made.