Title: PIR-22A fuze
Date: 1945
Original Format: photograph: negative
Description: There is no information on how this fuze differs from PIR-22. PIR-22 was made for the 5.0″ HVAR and was 6.02″ long. It was built to be more impact-resistant and more reliable than PIR-20 (Mk164). Preliminary tests were done in September, 1945.
Collection: Scientific Instruments
Caltech Archives ID: ST-RK-13
