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New French IM GP Bombs
Development update
Laurent Delrieu (DGA), Sébastien Régnaut (SAMP),
Bruno Nouguez (Eurenco)
DGA 16/05/2012 Diapositive N°2 / 22
New French IM GP Bombs
Background
Objectives
Technology Demonstrator Program
Way Ahead
DGA 16/05/2012 Diapositive N°3 / 22
Background
500 lb bombs in French Forces
Mk 82
BLU 111
CBEMS 250
DGA 16/05/2012 Diapositive N°4 / 22
Background : Mk 82
Use
General Purpose Bomb
Armée de l’air
Description
Similar to US BLU-111/B
PBXN-109 iRDX
Manufacturer
SAMP
Eurenco
IM Signature (MSIAC) FCO SCO BI FI SR
IV/V IV/V V V I
DGA 16/05/2012 Diapositive N°5 / 22
Background : BLU 111
Use General Purpose Bomb
Marine Nationale
Description Similar to US BLU-111A/B
Thick Thermal Coating (FM26)
PBXN-109 iRDX
Manufacturer SAMP
Eurenco
IM Signature (MSIAC) FCO SCO BI FI SR
IV/V IV/V V V I
DGA 16/05/2012 Diapositive N°6 / 22
Background : CBEMS 250
Use General purpose but with high penetration capabilities
Marine Nationale
Description B2214B (EIDS)
Intumescent coating
Venting systems
Logistic palette
Manufacturer MBDA
Eurenco
IM Signature FCO SCO BI FI SR
V V V V III
DGA 16/05/2012 Diapositive N°7 / 22
Objectives for new GP bombs TDP
Insensitive
≥ CBEMS 250
Type III for SR
General Purpose
≥ Mk-82 Lethality
Bomb
Mk-82 shape
Low collateral Damage
Lower risk distances
compared to Mk 82
Insensitive
Low Collateral Damage
Bomb (ILCD-B)
Insensitive
General Purpose
Bomb (IM-B)
General Purpose
Bomb (GP-B)
DGA 16/05/2012 Diapositive N°8 / 22
Objectives : Insensitive
Sympathetic Reaction
No propagation of detonation
Reaction ≥ Type III
Fast Cook Off
No reaction for several minutes
Reaction limited to combustion
Heavy Fragment Impact
No explosion when subjected to an impact of an
Heavy Fragment
DGA 16/05/2012 Diapositive N°9 / 22
Objectives : Bomb
Compatibility with different interfaces
Mk-82 outline : no thick thermal protection
Fuzes : FBM21, FMU-139, FMU-143
Ejectors : TG480, …
Kits : AASM, Paveway
DGA 16/05/2012 Diapositive N°10 / 22
TDP : Team
Contracting French MoD
DGA UM RAF
DGA Technical direction
CEA Gramat Expertise
Forces
EMA : CNC
Armée de l’air
Marine Nationale
Industry
SAMP
Eurenco
CEA
DGA 16/05/2012 Diapositive N°11 / 22
TDP : Major Parts
Embedded booster
Venting
Explosive
Thin Thermal protection
Liner
DGA 16/05/2012 Diapositive N°12 / 22
TDP : Venting
Prevent violent reaction for Sympathetic Reaction
Slow Cook Off
Light / Heavy Fragment Impact
No reduction of reaction time for Fast Cook Off
Principle Safety cut-out
Pressure breaking
Withstand environment
DGA 16/05/2012 Diapositive N°13 / 22
TDP : Thermal Protection
Test on intumescent coating with ENSCL (France) Evaluation of thermal coating, common and “home-made”
intumescent coating
Coated steel sample
FAST COOK OFF (GAS OVEN)
TEMPERATURE INCREASE AND FLUX
COMPLIANT WITH STANAG 4240
INDIRECT FIRE (RADIATOR)
DGA 16/05/2012 Diapositive N°14 / 22
TDP : Thermal Protection
Common intumescent coating (layer < 1 mm) Less efficient than FM26 (15% less)
Thin layer
No burning
European supply
“Home-made” intumescent coating (layer < 1 mm) As efficient as FM26
Thin layer
No burning
European supply
DGA 16/05/2012 Diapositive N°15 / 22
TDP : Explosives
GP-B IM-B ILCD-B
Main Filling B2258B B2268A B2274A
Main Ingredients RDX/AP/Al/HTPB RDX/NTO/Al/HTPB RDX/Al/HTPB
Embedded
Booster / B2273A B2273A
Main Ingredients / HMX/HTPB HMX/HTPB
DGA 16/05/2012 Diapositive N°16 / 22
TDP : Liner and Booster
Overall view
- Velocity screen plates
-Water bottle « frag catcher »
- Overpressure measurement
Post test view
Boostering reliability
Fragment shapes and velocities identification
LDTU
Large Diameter
Testing Unit
DGA 16/05/2012 Diapositive N°17 / 22
TDP : Liner and Booster
Liners on production line
DGA 16/05/2012 Diapositive N°18 / 22
TDP : Sympathetic Reaction
Trials of IM-B
4 live IM-Bombs
Before test After test (and reconstruction)
REACTION TYPE III
DGA 16/05/2012 Diapositive N°19 / 22
TDP : Arena tests
IM-B (04/2012)
&
ILCD-B (05/2012)
DGA 16/05/2012 Diapositive N°20 / 22
TDP : Delivery of demonstrators to DGA
ILCD-B
IM-B before loading
DGA 16/05/2012 Diapositive N°21 / 22
Way Ahead
IM test on IM-B
Fast Cook Off
Slow Cook Off
Heavy Fragment Impact
Arena test for ILCD-B
DGA 16/05/2012 Diapositive N°22 / 22
DGA institutional site: www.defense.gouv.fr/dga
Industry portal: www.ixarm.com
DIRECTION GÉNÉRALE DE L’ARMEMENT
7, rue des Mathurins - 92221 Bagneux Cedex - France
Tél. : +33 (0)1 46 19 50 00 - Fax : +33 (0)1 46 19 50 01
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