Interesting manual, but it's 50 years old.... by 1968, the manual was completely obsolete.
I design sensors for modern fuzes (for the past 37 years), and believe me that things are lights years more sophisticated than in 1966.... Think smart fuzes, MEMs (wafer based) and micro-electro-mechanical...
Impact, delayed response, instantaneous, air burst, multi-functional, programmable, ESAF, ESAD and on and on. We attend the NDIA Fuze Conference (closed to the public and Foreign Nationals) every year. This year, we are presenting our latest (patent pending) technology.