10.1.2 wSarbead Description (Fig. 10.1). The warhead and instrument compartuest were sealed before launch, and thus the warhead was exposed to pressure during flight equal to or slightly greater than ambient pressure of the launch site. Details of warhead descrip- tion and operation are contained in Sandia Corporation document sc-3897(m).! 20.1.3 used. Warhead Preparation and Test This equipment operated satisfactorily in all respects. 10.1.8 Fuzing Systea The fuzing system is described in a joint DHA/DQD/DASA publication.* The system consisted of two paralleled T-107 safing and arming devices, a 26-volt thermal batrery power supply, and a timing device. As a result of changes ixn- corporated following flight tests at AFMIC, the system was changed so chat the primary fire signal was applied directly to the warhead trigger-circuit thyratron grids, and the ‘backup fire signal vas applied -to che trigger-circuit pulse transformers. . The fuzing system was designed ‘by Picatinny Arsenal and vas based, where possible, on use of already developed components. The T-107 devices were similar to chose used in Che tactical Redstone missile, with modifications as necessary to fit the trajectories. The tining device ucilized mechanical escapement timers which had been used by the Ordnance Corps in other weapon applications. a, ? , DY