PIR-21 (Mk165) fuze
1945
- Title
- PIR-21 (Mk165) fuze
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-RK-12
- Dates
- 1945
- Extents
- 1 photographs (negative)
- Abstract
- This was a modification of PIR-2 with elements of PIR-19. Distinguishing feature is that the fuze head and rocket motor adapter are made in one piece. About 0.33″ longer than PIR-2 fuzes, apparent in extension of magazine. During March-June 1945 about 50,000 were manufactured and loaded by Caltech.