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CLUSTER BOMBS

College of Air Warfare. CLUSTER BOMBS. SCOPE. BASIC PRINCIPLE OF OPS - CLUSTER BOMBS. BRIEFLY STUDY THE ARMT UNDER THESE CATEGORIES AVAILABLE IN THE IAF INVENTORY. COMPARE THE BOMBS. FILM - BL 755. NEED – REQUIREMENT. LL ATTACKS ESSENTIAL FOR CLOSE AIR SUPPORT ROLE – NO ALTERNATIVE

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CLUSTER BOMBS

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  1. College of Air Warfare CLUSTER BOMBS

  2. SCOPE • BASIC PRINCIPLE OF OPS - CLUSTER BOMBS. • BRIEFLY STUDY THE ARMT UNDER THESE CATEGORIES AVAILABLE IN THE IAF INVENTORY. • COMPARE THE BOMBS. • FILM - BL 755.

  3. NEED – REQUIREMENT • LL ATTACKS ESSENTIAL FOR CLOSE AIR SUPPORT ROLE – NO ALTERNATIVE • RETARDER BOMBS • DELIVERY POSSIBLE FROM LL • SUITABLE FOR LARGE AND STATIC TGTS WHERE LARGE CONC OF HE • INEFFECTIVE AGAINST SMALL TGTS • REQT – WPN TO GIVE HIGH KILL PROB AGAINST SMALL TARGETS

  4. PRINCIPLE OF OPS • PRINCIPLE OF SHOT GUN - CATERS FOR AIMING ERRORS. • PARENT BOMB CONTAINS NUMBER OF SUB-MUNITIONS. • ON RELEASE FROM AC - PARENT BOMB IS RETARDED - EITHER RETARDING FINS OR PARACHUTE. • AFTER ENSURING THAT THE BOMB HAS BEEN SUFFICIENTLY RETARDED - THE SKIN / COVER OF THE PARENT BOMB IS EXTRACTED / PEELED OFF.

  5. PRINCIPLE OF OPS • AFTER ENSURING THAT THE SKIN IS PEELED OFF - SUB-MUNITIONS ARE EXTRACTED. • EACH SUB-MUNITION AFTER EXTRACTION IS SEPARATELY RETARDED. • EACH SUB-MUNITION FUNCTIONS INDEPENDENTLY AFTER HITTING THE TARGET. • TYPE OF WARHEAD IN THE SUB-MUNITION - ANTIPERSONNEL OR ANTI-TANK OR RUNWAY PENETRATION.

  6. BL 755 • DESIGNED TO CARRY 147 DUAL – PURPOSE / GP BOMBLETS. • DESIGN. A GAS OPERATED SYSTEM WHEN ACTIVATED • SPLIT THE OUTER CASING INTO TWO PARTS. • EJECTED THE BOMBLETS AT VARYING TIMES AND VELOCITIES.

  7. BL 755 • DUAL PURPOSE CLUSTER BOMB • M/S HUNTING ENGG • TWO VERSIONS PROGRESSIVELY DEVELOPED • BL 755 No 1- GP CLUSTER BOMB • BL 755 No 2- ADVANCED ANTI ARMOUR (AAA)

  8. LEADING PARTICULARS • WEIGHT OF BOMB : 277 ± 5 KG • NUMBER OF BOMBLETS : 147 • WEIGHT OF EACH BOMBLET : 1KG APPX. • FILLING OF BOMBLET : RDX/TNT • WEIGHT OF FILLING : 228 GMS • USED ON MIG 21, 23 AND JAGUAR AC DAMAGE AREA :10000 SQM

  9. BL-755 SAFU INFLATABLE BAG AIR ARMING VANE • NOSE SECTION. • ARMING VANE • SAFETY ARMING & FUNCTIONING UNIT • BREECH & VALVE ASSEMBLY • LEAD ELECTRICAL FUZE ARMING

  10. BL-755 INFLATABLE BAG SAFU AIR ARMING VANE • CENTRE SECTION. • GAS TUBE • GAS DISTRIBUTION BLOCKS • INFLATABLE BAGS • BOMBLETS • TAIL SECTION • FINS FOR RETARDING THE BOMB

  11. SAFETY ARMING AND FUNCTIONING UNIT (SAFU) • LOCATED IN THE BOMB NOSE. • INITIATES FIRING SEQUENCE WHICH RELEASES THE BOMB SKIN AND EJECTS BOMBLETS. • FOUR TIME DELAY SETTINGS- .08, .8, .94, 1.13 sec. • CONDITIONS TO BE SATISFIED. • LIVE RELEASE HAS BEEN SELECTED BY PARENT AC. • AFTER SPECIFIED DELAY SETTING. • ARMING VANE ROTATES AT SPECIFIED RPM.

  12. SAFU - COMPONENTS • GAS MOTOR ASSY- SEALED X – RELEASES SAFETY DEVICE • CLUTCH AND DRUM ASSY – COUPLED TO ARMING VANE • STRIKER ASSY • TIMER ASSY – DELAY FIRING OF PRIMARY CARTRIDGE • TRIGGER ASSY

  13. GAS SYSTEM • THROUGH TWO CARTRIDGES LOCATED IN BREECH AND VALVE ASSY • BREECH AND VALVE ASSY • ROUTES GAS FLOW FROM PRIMARY CARTRIDGE – UNLATCHING/LIFT OF SKIN • ROUTES GAS FLOW FROM SECONDARY CARTRIDGE TO EJECT BOMBLETS • GAS DISTRIBUTION BLOCKS • GAS TUBE – MOVES REARWARDS AND CONVEYS GASES FROM SEC CARTRIDGE TO GAS DISTRIBUTION BLOCKS

  14. CENTRE SECTION • BOMBLETS • 147 BOMBLETS ARRANGED IN 7 BAYS • EACH BAY HAVING 7 SECTIONS • EACH SECTION HAVING THREE BOMBLETS • EACH SECTION HAS ONE INFLATABLE BAG – 49 BAGS IN TOTAL • VEL OF GASES AND INFLATION RATE OF BAGS IS CONTROLLED • 2,4,6 SECTIONS HAVE HIGH GAS FLOW – EJECTED FIRST • 1,3,5,7 SECTIONS HAVE LOW GAS FLOW – EJECTED LATE

  15. BL-755 1. AFTER RELEASE, STABILISING FINS EXTEND AND THE BOMB FOLLOWS A NORMAL BALLISTIC TRAJECTORY. 2. AFTER A SELECTED TIME DELAY THE OUTER CASING IS SPLIT INTO TWO BY GAS PRESSURE FROM A PRIMARY CARTRIDGE.

  16. BL-755 3. ONCE THE BODY CASE HAS OPENED THE MAIN GAS CARTRIDGE IS ACTIVATED AND ITS PRESSURE EJECTS THE BOMBLETS.

  17. CLUSTER BOMBS

  18. BOMBLETS WITH TAIL OPEN

  19. CLUSTER BOMBLET

  20. FUNCTIONING OF BOMBLET

  21. OPERATION • BOMBLET EJECTION VELOCITY IS VARIED BETWEEN BAYS TO ENSURE EVEN GROUND COVER. • EACH BOMBLET IS ARMED AFTER A SHORT PERIOD OF FLIGHT AND ON IMPACT THE SHAPED CHARGE PENETRATES THE ARMOUR – 25 CM PENETRATION. • IN ADDITION TO ITS ANTI-ARMOUR CAPABILITY EACH BOMBLET CASING DISINTEGRATES INTO 2000(1850 MT/S) FRAGMENTS WHICH ARE EFFECTIVE AGAINST NON-ARMOURED TARGETS AND PERSONNEL. • PIEZO ELECTRIC FUSE – FUSE ARMED ONLY WHEN TAIL IS DEPLOYED – FIVE ROTATIONS

  22. BME 330 CLUSTER BOMB • MANUFACTERED BY EXPAL COMPANY OF SPAIN. • MIG-23,MIG-27 AND JAGUAR AIRCRAFT. • RELEASE POSSIBLE AT 30 MTS • WEIGHT - 320kgs • NUMBER OF BOMBLET - 180 • WT. OF EACH BOMBLET - 0.800kgs • BOMB EFFICIENCY 95% • BOMBLET EFFICIENCY 80% • 20 % BOMBLETS MAY/MAY NOT WORK

  23. BME-330 NOSE CONTAINER • IT CONSTITUTES THE FRONTAL END OF THE CYLINDRICAL SKIN AND HOUSES THE TWIN FUZE SYSTEM AND ELECTRONIC UNIT • THIS ELECTRONIC UNIT SUPPLIES ELECTRICAL POWER THROUGH FUZE TO DE-SKINNING OF BODY AND TO THE PYROCARTRIDGE FOR SCATTERING OF BOMBLETS. MAIN BODY • MAIN BODY HOUSES THE CLUSTER FRAME WHERE BOMBLETS ARE STORED IN NINE LAYERS EACH LAYER CONTAINS TWENTY BOMBLETS.IT ALSO CONTAINS THE DE-SKINNING SYSTEM AND THE SCATTERING SYSTEM FOR BOMBLETS DISPERSION. TAIL UNIT • STABILISES THE BOMB AFTER RELEASE.IT HOUSES A PARACHUTE ASSEMBLY HELD TO THE BOMB WITH THE HELP OF HOLDING DEVICE.

  24. BOMBLETS • 180 BOMBLETS. • TWO TYPES - ANTI PERSONNEL AND ANTI ARMOUR. • MIX - FACTORY SET AND CANNOT BE REARRANGED. • SEPARATE PARACHUTE PROVIDED FOR EACH BOMBLET. • THREE TYPES OF PARACHUTES USED HAVING VARYING CANOPY AREA - SMALL , MEDIUM AND LARGE. • FIRST THREE LAYERS HAVE SMALL PCHUTES • LAST THREE LAYERS HAVE LARGE PCHUTES • INDIVIDUAL FUZE.

  25. BL 755 Vs BME 330

  26. BL 755 Vs BME 330

  27. BELOUGA

  28. BLG - 66 • AFTER RELEASE THE BOMB IS RETARDED BY PARACHUTE • CENTRAL TUBE IS THEN WITHDRAWN BY THE PARACHUTE • THIS ACTUATES THE PYROTECHNIC CHARGES OF EACH RING OF GRENADES • GRENADES ARE RELEASED BY RINGS TO PROVIDE CONSISTENT PATTERN • GRENADES ARE ALSO INDIVIDUALLY RETARDED • TWO RELEASE PATTERNS • LONG CARPET – 40 x 240 MTS • SHORT CARPET – 40 x 120 MTS

  29. BL 755 Vs BELOUGA

  30. CLUSTER BOMBS • SECOND METHOD - BOMB HELD ON TO THE AC - SUB-MUNITIONS DISPENSED DIRECTLY FROM THE BOMB ITSELF. – EXAMPLE JP 233.

  31. JP 233 • BRITISH CLUSTER BOMB - TWO TYPES OF SUB-MUNITIONS • VERY HEAVY WEAPON – 2335 KG ; 5 TIMES EFFECTIVE • HB 876 - AREA DENIAL MINES - 215 CAN BE CARRIED IN ONE MODULE • WT 2 .4 KG - BLAST FRAGMENTATION WARHEAD. • ON IMPACT WITH GROUND IT STANDS UP ON ITS VANES - RANDOM SELF DESTRUCTION FUZE. • BURST EITHER BY LOCAL DISTURBANCE OR DELAY FUSE • WARHEAD ON DETONATION CAN PERFORATE STEEL

  32. JP 233 • SG 357 • RUNWAY PENETRATION WEAPONS • 30 WPNS CARRIED IN ONE MODULE • BRAKING AFTER RELEASE BY P’CHUTE – PROGRESSIVELY GET VERTICAL • TWO WARHEADS • FIRST – SHAPED CHARGE WHICH PUNCHES A HOLE THRO WHICH SECONDARY CHARGE IS FIRED • SECONDARY CHARGE FIRES WELL BELOW SURFACE – CRATERING HEAVY • JP 233 HAS REUSABLE MODULE

  33. REVISION

  34. QUESTIONS?

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