SHAPED CHARGE JET ATTACKS WHAT SHAPED CHARGE ? WHICH TEST SET-UP ? - PowerPoint PPT Presentation

SHAPED CHARGE JET ATTACKS WHAT SHAPED CHARGE ? WHICH TEST SET-UP ? IMEMG's Expe rt Working Group on Ha za rd Asse ssm e nt & Cla ssifica tion Presented by Yves GUENGANT w ww .im em g.org 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1

I NTRODUCTI ON 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 2

I NTRODUCTI ON • Europe a n Orga nisa tion a sse m bling twenty le a ding a rm a m e nt groups working with Insensitive Munitions te chnologie s 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 3

I NTRODUCTI ON Expre ss the a rm a m e nt industry' vie wpoint with re ga rds to re le va nt tra nsna tiona l re gula tions a nd re quire m e nts. Ex pe rt Wo rkin g Gro u ps Com pute r Mode ls for IM Pe rform a nce, • Cost & Bene fit Ana lysis, • Fa st Cook-off Te st Proce dure, • Effe cts of Age ing, • Ha za rd Asse ssm e nt & Cla ssifica tion. • Hazard Asse ssm e nt & Classification Ex pe rt W orking Group to pre se nt this analysis 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 4

CONTEXT 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 5

CONTEXT 1 / 2 » STANAG 4526 (Ed2) "SHAPED CHARGE JET – MUNITIONS TEST PROCEDURE" » n o t a re a l s ta n da rdize d re fe re n ce : • not ra tifie d by a ll Na tions, • 50 m m Rocke ye Sha ped Cha rge not re a dily a va ila ble , • Pe rform a nce not correctly de fine d for de te rm ina tion of a n e quiva le nt Sha pe d Cha rge , • te st se t-up not cle a rly de fine d (conditioning pla te , ta rget nose, ...), • e a ch test cente r to use own Sha ped Cha rge a nd te st procedure . 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 6

CONTEXT 2 / 2 • Re ce nt fe e dba ck from Afgha nista n a nd Ira q » Th re a t Ha z a rd An a ly s is re v ie w : Sta nda rd Sha pe d Cha rge s design which would be re prese nta tive of num e rous RPG7 type s: – USA MIL-STD-2105(D) specifie s a sta nda rdise d LX-14 81m m Sha pe d Cha rge. – Fra n ce ha s de signe d CCEB 62, – Ge rm a n y is de ve loping PG-7 re plica ; » Pre s e n t a t io n t o in t ro d u ce in d u s t ria l e x p e rt s p o in t s -o f-v ie w t o t h e I M co m m un it y . 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 7

CURRENT S I TUATI ON 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 8

CURRENT S I TUATI ON • STANAG 4439 & AOP 39 • TEST PROCEDURE STANAG • IMPLEMENTATION DIFFICULTIES • FEED-BACK FROM FRANCE • FEED-BACK FROM GERMANY • FEED-BACK FROM UNITED KINGDOM • COMPARISON OF IM SIGNATURES 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 9

S TANAG 4 4 3 9 Ed3 & AOP 3 9 Ed3 • STANAG 4439 – Th re a t : Sha pe d Cha rge we a pon a tta ck � Re quire m e nt: Ty pe I II , – Sha pe d Cha rge Je t, Munitions Test Proce dure � S TANAG 4 5 2 6 Ed2 . 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 0

S TANAG 4 4 3 9 Ed3 & AOP 3 9 Ed3 • AOP 39 – The Ba s e lin e Th re a t Ra n g e » sha pe d cha rge ca libe r up to 85 m m dia m e te r (AOP39 ta ble 1). – For the purpose of IM: » sha pe d cha rge to be "bro a dly re pre s e n ta tiv e o f Ro cke t Pro pe lle d Gre n a de s a n d to p a tta cks bo m ble ts " (AOP39 a nne x F) – Te s t co n d it io n s (AOP39 a nne x H): » 50m m Rocke ye or e quiva le nt V 2 d cha rge, » Use of conditioning pla te not define d. 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 1

TES T PROCEDURE S TANAG • STANAG 4526 (Ed2) SHAPED CHARGE JET – MUNITIONS TEST PROCEDURE » de signe d for " determ ining the degree of reaction of a m unition when hit by typical top attack bom blet shaped charge jet " » n o t ra tifie d by a ll NATO na tions » specifie d cha rge (50m m Rocke ye ) not re a dily a va ila ble in m a ny countrie s, the refore n o t u s e d in IMEMG's Na tions 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 2

TES T PROCEDURE S TANAG • STANAG 4526 (Ed2) SHAPED CHARGE JET – MUNITION TEST PROCEDURES (cont'd) » test set-up n o t pre cis e ly de fin e d (pote ntia l use of conditioning pla te ) » in co n s is te n t va lu e s a bout 50m m Rocke ye (confirm e d during MSIAC IM Technology Ga ps Workshop - June 2011) » pa pe r: " Rocket Propelled Grenade S haped Charge Initiation Test Configuration for IM Threat Testing " by Ernest L. Ba ke r a nd a l. 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 3

I MPLEMENTATI ON DI FFI CULTI ES • The V 2 d va lue s is the link be twe e n diffe re nt sha pe d cha rge s – va rious sha pe d cha rge s a llowe d, if sa m e V 2 d – va lue s noted in STANAG 4526 Ta ble 1 (to com e ) m u ch to o h ig h by a t le a st a fa ctor of > 2 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 4

I MPLEMENTATI ON DI FFI CULTI ES • For e xa m ple RPG-7 – typica l m e a sure d va lues for the Sha pe d Cha rge Je t tip: s a n d d ~ 3 m m g iv e s a V 2 d v a lue o f ~ 1 7 0 m m 3 / µ s 2 V ~ 7 .5 m m / µ s 2 a s note d in the ta ble (i.e . 430/ 170 = 2.5 – diffe re n t fro m 430 m m 3 / µ too la rge ) » i.e . a fa ctor of 430/ 170 = 2.5 too la rge . 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 5

I MPLEMENTATI ON DI FFI CULTI ES • As V 2 d is the link be twe e n diffe re nt sha pe d cha rge s » ve ry im porta nt to de fin e e x a ctly how V a nd d should be m e a sured a s be low; » Both num be rs V a nd d a re n o t co n s ta n t bu t v a ria bly ove r the Sha pe d Cha rge Je t le ngth; » the s ca tte rin g within the m e a sure m e nts should be ta ke n into a ccount. S h a pe d Ch a rg e Je t Fo rm a tio n S h a pe d Ch a rg e S CJ Tip Ve lo city: v j0 [ m m / µ s ] S CJ Dia m e te r : d [ m m ] 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 6

FEED-BACK FRANCE • Fre nch te st ce nte rs to use diffe re nt Sha pe d Cha rge s : – MILAN K115, MILAN 2, ACL 89 (m m ), PG-7, CCEB 62 (m m ),... – Te st conditions va ry: ta rge t nose, sta nd-off, conditioning pla te ... RPG-7 RPG-7 ACL 8 9 4 5 m m CCEB 6 2 w ith ta rg e t n o s e Bo m ble t w ith co n ditio n in g pla te 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 7

FEED-BACK GERMANY • Som e Sha pe d Cha rge s : – DM1244 (44 m m dia m e te r) PG-7 Re plica – PG-7 re plica (75 m m ) Ca libe r 7 5 m m Bo m ble t Ca libe r 4 4 m m 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 8

FEED-BACK UK • Sha pe d Cha rge s use d : – IBL 755 (50 m m dia m e te r), – MLRS Bom ble t : M42 (34 m m dia m e te r), – Sta nda rd DERA Fort Ha lste a d K4 (63.5 m m dia m e te r). • EMTAP te st m e thod de fine K4 Sha pe d Cha rge : – Conditioning pla te ca n be use d. 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 1 9

FEED-BACK UK • The SCJ te st is only ca rrie d out » when re quire d by Thre a t Ha za rd Asse ssm e nt of the re le va nt e nvironm e nts for the m unition, » Howe ve r fre quently use d for a sse ssing the IM response for La rge Ca libre Gun Prope lla nt Cha rges, » Va lidity conside re d by IMAP (IM Asse ssm e nt Pa ne l), IMAP a lso re vie w the te sting conducte d. 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 2 0

COMPARI S ON OF I M S I GNATURES • Difficult to unde rsta nd when liste d in a ta ble with colors-code d boxe s (AOP39 Ed3) 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 2 1

COMPARI S ON OF I M S I GNATURES • Difficult to unde rsta nd when liste d in a ta ble with colors-code d boxe s (AOP39 Ed3) 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 2 2

COMPARI S ON OF I M S I GNATURES • Conditioning pla te ofte n use to : - a djust V 2 d va lue a ccording to spe cific Thre a t Ha za rd Ana lysis, - a void the re a r slug effe ct discre pa ncie s. » a m unition to pa ss the STANAG 4526 but which is the re a l s tim u lus ? • In-se rvice Sha pe d Cha rge a re e quippe d with ta rge t nose » i.e . for RPG7, ta rget nose ca n re du ce s ig n ifica n tly the V 2 d with the "sa m e " cha rge 2 0 1 2 I M&EMTS # 1 3 8 4 9 SHAPED CHARGE JET ATTACKS : WHAT S HAPED CHARGE? WHI CH TES T S ET-UP? 2 3