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No 233 fuze ???
- Thread starter lcn
- Start date
Fuze No 233
Fuze, Percussion, Direct Action, No 233
Design DD/L/13050. Strikerless 'spit-back' fuze for use in HE/AT (shaped charge) anti-tank
shells for the 95mm and 3.7in howitzers. Later (1944) adopted for use in some 3in aircraft
rockets.
The fuze is of brass, to a unique small gauge (about 0.5in) and with a long parallel shank
inside the shell. The head is conical and hollow. On impact, the air inside the head was
compressed and ignited the column of explosive in the shank which burned to detonation.
The rear end of this column of explosive was shaped as a hollow charge and lined, so that on
detonation it fired a shaped charge jet down the centre of the shell. This passed through a central tube to strike a CE pellet at the base of the main shaped charge and thus detonate it from the rear end. In later years, in American usage, this type of fuze became known as 'Point Initiating, Base Detonating' (PIBD).
Sentenced 'For Operational use Only' owing to the absence of any form of safety device. Designed by DMD1 in 1942; trials were conducted in November 1942.
Mark I List of ChangesC 1249 of 12/1/1942
Drawing QX56GF
Obsolete by C6590 of 11/3/1955
View attachment 233-061.pdf
Fuze, Percussion, Direct Action, No 233
Design DD/L/13050. Strikerless 'spit-back' fuze for use in HE/AT (shaped charge) anti-tank
shells for the 95mm and 3.7in howitzers. Later (1944) adopted for use in some 3in aircraft
rockets.
The fuze is of brass, to a unique small gauge (about 0.5in) and with a long parallel shank
inside the shell. The head is conical and hollow. On impact, the air inside the head was
compressed and ignited the column of explosive in the shank which burned to detonation.
The rear end of this column of explosive was shaped as a hollow charge and lined, so that on
detonation it fired a shaped charge jet down the centre of the shell. This passed through a central tube to strike a CE pellet at the base of the main shaped charge and thus detonate it from the rear end. In later years, in American usage, this type of fuze became known as 'Point Initiating, Base Detonating' (PIBD).
Sentenced 'For Operational use Only' owing to the absence of any form of safety device. Designed by DMD1 in 1942; trials were conducted in November 1942.
Mark I List of ChangesC 1249 of 12/1/1942
Drawing QX56GF
Obsolete by C6590 of 11/3/1955
View attachment 233-061.pdf
