dynamic responses will be considerably improved as a result of data obtained. A test of an.Ajr Force B-66 proved the delivery capability of this aircraft. Sufficient data were obtained to define safe-delivery envelopes and to improve the ability of the aircraft industry to predict structural dynamic responses. Testing of an Air Force B-57 proved the capability of this aircraft to deliver nuclear weapons. Gust loads of 20 to 65 per cent of design Iimit for shear on the wing were measured. Temperatures up to 580°F were obtained on the black, thin-skinned, control-surface tabs. . . Sufficient data were obtained to define safe-delivery envelopes of the black-painted B-57. A test of two Air Force F-84F aircraft was successful in the completion of its two-fold objective to (1) determine its capability to deliver nuclear weapons, and (2) provide side-load data for aircraft structure research. Both aircraft measured high inputs, with resultant high aircraft structural responses to assist in defining the safe-delivery envelopes. In addition, the side-load aircraft provided data that were not previously available to the aircraft industry. A test of an Air Force F-101A was successful in the determination of . the capability of the F~101A to deliver nuclear weapons. - Measured data included temperature rises up to approximately 500°F and gust responses of 100 per cent of design limit on the wing. The safe-delivery envelopes may be clearly defined from the data obtained in the test series. A supersonic run was made on one event, with the expected thermal inputs and with no f overpressure or gust inputs. Program 5 successfully measured thermal inputs and obtained useful fireball-spectral-distribution information from instrumentation mounted on the B-47, B-52, B~66, and B-57. : A test of a Navy A3D-1 proved the capability of the A3D-1 to deliver nuclear weapons. Data obtained during the test indicate a better capability than had been predicted by theoretical analysis. The A3D~-1 was the first Navy aircraft witha high-yield weapon capability to be proven in an actual test series. Over 100 specimens were mounted on towers and exposed to a fireball environment to determine the thermal lethality of a nuclear detonation to certain basic missile structures and materials. To date, only a few specimens have been recovered. Results of this project must be held in abeyance until the nuclear-radiation fields are low enough to permit recovery. - 2.1.6 Program 6, Service Equipment and Techniques This program, consisting of five projects, had a great amount of activity outside the PPG with stations extending from the Eastern United States to Hawaii and the Western Pacific. - 34 - BL