united we prepare cluster bombs college of air warfare
TRANSCRIPT
United We Prepare
CLUSTER BOMBS
College of Air Warfare
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BASIC PRINCIPLE OF OPS - CLUSTER BOMBS.
BRIEFLY STUDY THE ARMT UNDER THESE CATEGORIES AVAILABLE IN THE IAF INVENTORY.
COMPARE THE BOMBS.
FILM - BL 755.
SCOPE
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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
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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.
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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.
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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.
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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)
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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
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NOSE SECTION.• ARMING VANE• SAFETY ARMING & FUNCTIONING UNIT• BREECH & VALVE ASSEMBLY• LEAD ELECTRICAL FUZE ARMING
AIR ARMING VANE
SAFU INFLATABLE BAG
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AIR ARMING VANE CENTRE SECTION.
• GAS TUBE• GAS DISTRIBUTION BLOCKS• INFLATABLE BAGS• BOMBLETS
TAIL SECTION• FINS FOR RETARDING THE BOMB
SAFU INFLATABLE BAG
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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.
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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
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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
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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
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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.
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3. ONCE THE
BODY CASE HAS
OPENED THE
MAIN GAS
CARTRIDGE IS
ACTIVATED AND
ITS PRESSURE
EJECTS THE
BOMBLETS.
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CLUSTER BOMBS
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CLUSTER BOMBLET
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FUNCTIONING OF BOMBLET
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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
OPERATION
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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
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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.
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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.
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BL 755 Vs BME 330
DESCRIPTION BL 755 BME 330
NO OF
BOMBLETS
147 ARRANGED IN 7 BAY S EACH HOLDING 21 BOMBS
180 ARRANGED IN 9 LAY ERS WITH 20 BOMBS EACH
WT OF BOMBLET
1 K G 0.8 GMS
TY PE OF BOMBLETS
GP AP AND AA - RATIO FIXED IN FACTORY ITSELF
METHOD OF ACHIEVING
SPREAD
PRIMARILY BY VARY ING THE GAS PRESSURE TO EACH BAY
PRIMARILY BY THE VARY ING RETARDER PARACHUTE CANOPY AREA
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DESCRIPTION BL 755 BME 330
MAIN BOMB RETARDER SY STEM
RETARDER PARACHUTE NOT AVAILABLE. PRIMARILY BY GIVING MARGINAL FWD SWEEP TO THE TAIL FINS
RETARDER PARACHUTE AVAILABLE IN THE TAIL SECTION. GETS CONNECTED TO THE MAIN BODY ONLY AFTER RELEASE OF THE BOMB
OPERATING LOGIC
PROVIDED BY
SAFU ELECTRONIC UNIT WITH ITS OWN BATTERY
CARTRIDGES TWO MAIN CARTS + TWO PY ROPUSHERS
BL 755 Vs BME 330
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BELOUGABELOUGA
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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
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BL 755 Vs BELOUGA
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SECOND METHOD - BOMB HELD ON TO THE AC - SUB-MUNITIONS DISPENSED DIRECTLY FROM THE BOMB ITSELF. – EXAMPLE JP 233.
CLUSTER BOMBS
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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
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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
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REVISION
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QUESTIONS?