pzgr40
Well-Known Member
Cutaway model of a PTAB 10-5 HEAT-FRAG (shaped charge and franmentation) clusterbomb. This 10,5 kg heavy Russian clusterbomb is from the 1950’s of the last century. The bomb body, the nose piece, the tail and the cone are steel made.
In the base of the clusterbomb the ADC-583 impact tail impact fuze is placed.
Functioning of the ADC-583 impact tail fuze:
The fuze body is bakelite made, a booster is screwed into the base of the fuze with a duplex detonator in the center of the booster. A strong pressure spring is placed on top of the booster, keeping the firing pin away from the duplex detonator. The firing pin consists of an inertia weight (cilinder) with a needle at the base. The top part of the fring pin is a shaft with a groove.
The impeller has two radial placed spring loaded pins, placed in two small opposite tubes at the base of the impeller that fit in the groove of the firing pin, which fixate the firing pin.
As soon as the PTAB 10-5 is released ftom the RBK 500-225 bomb body the impeller will rotate fast in the airstream, throwing the two radial pins outward, riding the springs. This releases the impeller to fall away from the firing pin, rendering the fuze live. Upon impact inertia swings the firing pin forward, pushing the needle into the duplex detonator, exploding the bomb
30 PTAB 10-5’s are placed in a RBK-500-255 Clusterbomb.
Length PTAB 10-5 : 357 mm
Diameter PTAB 10-5 : 90 mm
Tail diameter : 120 mm
Weight PTAB 10-5 : 5,5 Kg (changed from 10,5 to 5,5 kg after MinenAz pointed out the mistake)
There is no info to be found about the PTAB 10-5 on data like type of explosives used, explosives weight, and armour penetration. If anybody has any info, please feel free to add this to the posting.
Regards, DJH
In the base of the clusterbomb the ADC-583 impact tail impact fuze is placed.
Functioning of the ADC-583 impact tail fuze:
The fuze body is bakelite made, a booster is screwed into the base of the fuze with a duplex detonator in the center of the booster. A strong pressure spring is placed on top of the booster, keeping the firing pin away from the duplex detonator. The firing pin consists of an inertia weight (cilinder) with a needle at the base. The top part of the fring pin is a shaft with a groove.
The impeller has two radial placed spring loaded pins, placed in two small opposite tubes at the base of the impeller that fit in the groove of the firing pin, which fixate the firing pin.
As soon as the PTAB 10-5 is released ftom the RBK 500-225 bomb body the impeller will rotate fast in the airstream, throwing the two radial pins outward, riding the springs. This releases the impeller to fall away from the firing pin, rendering the fuze live. Upon impact inertia swings the firing pin forward, pushing the needle into the duplex detonator, exploding the bomb
30 PTAB 10-5’s are placed in a RBK-500-255 Clusterbomb.
Length PTAB 10-5 : 357 mm
Diameter PTAB 10-5 : 90 mm
Tail diameter : 120 mm
Weight PTAB 10-5 : 5,5 Kg (changed from 10,5 to 5,5 kg after MinenAz pointed out the mistake)
There is no info to be found about the PTAB 10-5 on data like type of explosives used, explosives weight, and armour penetration. If anybody has any info, please feel free to add this to the posting.
Regards, DJH
Attachments
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02 - PTAB 10,5 HEAT FRAG safe sectioned.jpg -
03 - PTAB 10,5 HEAT FRAG armed sectioned.jpg -
04 - PTAB 10,5 HEAT FRAG fuze detail safe (2).jpg -
05 - PTAB 10,5 HEAT FRAG fuze detail armed.jpg -
06 - RBK 500-225 PTAB 10,5 clusterbomb picture.jpg -
07 - RBK 500-255 PTAB 10,5 doorsnede.jpg -
01 - Ptab 10,5 HEAT FRAG.jpg -
08 - RBK-500-255 - PTAB 10,5.jpg
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