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Download PART ni BRITISH UNDERWATER ORDNANCE - Disposal Handbook, Part 3.pdfBRITISH DEPTH BOMBS ... PART II I - BRITISH UNDERWATER ORDNANCE CHAPTER 6 ... Table 2 - British Depth Bomb Fuzes

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  • PART in

    BRITISH UNDERWATER ORDNANCE

    CONFIDENTIAL

  • TABLE OF CONTENTS

    PART I I I - BRITISH UNDERWATER ORDNANCE

    CHAPTER 1

    BRITISH INFLUENCE MINESPage

    Mine Cftart (Tuble 1) .......................................................................................... 2In troduction ......................................................................................................... 3"A " Mark I ("A " Mark I I , I I I and IV ) .......................................................... 5A

    A nA

    Mark V T ............................................................................................ ..MX"A " Mark

    U f l r l fV T T ...........................................................................................

    nu t*V t i r k T T ............................................................................................ ,

    "M" Mark I l l ......................................................

    CHAPTER 2

    BRITISH CONTACT MINES

    Mine Chart (Tab le 1) .......................................................................................... 2In troduction .......................................................................................................... 3H I I Murk I I ........................................................................................................ 5*T" Mark I I I ......................................................................................................... 9V ickers Antenna .................................................................................................... 11Murk XIV (Mark XV, XVI and X V II) ................................................................. 15Mark XIX ................................................................................................................ 21Mark XIXs (Mark XXVII) .................................................................................... 25Mark XX (Mark XX*) ............................................................................................ 29Murk XXII (Mark X X II* ) .................................................................................... 33Mark XXV ................................................................................................................ 37

    CHAPTER 3

    BRITISH TORPEDOES

    Torpedo Chart (Table 1 ) .................................................................................... 2Warhead Chart (Tablo 2) .................................................................................... 4In troduction .......................................................................................................... 621" Duplex Impact-Only Exploder, Mark I and I * * .................................... 7C.C.R. Exploder, Mark I and I * * .................................................................... 1118" Duplex Exploder, Mark I (Mark I I ) ........................................................ 13Above-Water Sxplodor .......................................................................................... 15Exploder Churt (Table 3) .................................................................................. 20Type 3 E x p lo d e r .................................................................................................... 21

    CHAPTER 4

    BRITISH DEPTH CHARGES

    Depth Charge Chart (Tab le 1) .......................................................................... 2In troduction ......................................................................................................... 3Mark V II (Mark V I I * , Mark X I I I ) ...................................................................... 3Mark V II (Heavy) .................................................................................................. 5Mark V I I I (Mark XI, X I * ) ................................................................................. 7Mark X (Murk X *) .................................................................................................. 11Mark X II .................................................................................................................. 15P is to ls Mark V I I , V I I * , V II*A , V I I * * , V II* *A , und V I I I ...................... 17P is to ls Mark V I I I * , V I I I * * , V I I I * * * , IX, IX *. IX ** , IX *** , X I,X I* , XI*C, and X I I I ...................................................................................... 19P is to ls Mark X IIIA , X I I I * , XIV, X IV*, XV, XVC ........................................ 21P is to ls Mark XVI, XVI*, XIX, XX, XX*, XXI ................................................ 27Primers (B oosters ) Mark V I I , V II No. 2, V I I I , VIA, X .......................... 27Primer P lucors (Booster Extenders) Mark I & I * ...................................... 29

    CHAPTER 5

    BRITISH DEPTH BOMBS

    Depth Bomb Chart (Table 1 ) .............................................................................. 2Depth Bomb Fuzes (Table 2) .............................................................................. 2In troduction ............................................................ ............................................ 3Nose Fuze #32, Mark3 I I * and I I I .................................................................. 9T a ll Fuzes #895A, Mark I , #875A, #8?5B and #875C .................................. 11T a l l Fuzes #862, Marks I and I I ...................................................................... 11

    Added 1 July 1945 (Change No. 8) -1 1 - COHFIDENTIAL

  • TABLE 07 CONTENTS

    PART I I I - BRITISH UNDERWATER ORDNANCE

    CHAPTER 6

    BRITISH AHEAD-THROWN ANTI-SUBMARINE WEAPONSPage

    In troduction .......................................................................................................... 3Hedgehog .............................................................................................................. 3Squid ....................................................................................................................... 3

    CHAPTER 7

    BRITISH CONTROLLED MINES

    L Mark I (L Mark I I ) .......................................................................................... 3

    Added 1 July 19^5CONFIDENTIAL - H i - (Change No. 8)

  • PART n

    BRITISH UNDERWATER ORDNANCE

    CHAPTER 5

    BRITISH DEPTH BOMBS

    DECEMBER 1. 194-4 CONFIDENTIAL

  • 5R IT ISH DEPTH BOMBS

    B ritishDesignation

    Tota lWeight( lb s . )

    Type & wt. o f Charge( lbs.)

    ,Shape

    Nose

    Max.Dlara.

    O vera llLength( i n . )

    Fuzing Markings Status

    MJc. I 100 45 KDX/TNT or

    49 Torpex

    Round 8.05 42 NoseFuze# 32

    DarX green o v e r a l l , i "

    Obsolescent

    MX. I I 100 It It It It 1 " from 1 M

    II

    MX. I l l 100 N "It It " l ig h t^ r e e n

    band 6If

    MX. IV 100 It It II T a il P ls to la *28 or #30

    from nose. Early designs, yellow

    11

    MX. VI 100 ii Sec Note 1

    II See Note 1

    IIo v e ra ll.

    S erv ice

    MX. I 250 149 Bara to 1 or

    140 TNT-

    Round 11.2 59 Nose Fuze # 32 Same as

    100 lb . c la s s ,

    Obsolescent

    MX. I I 250 ! I I II II II It

    MX. I l l 250 It It It t ft that l ig h t green band is 4" from nose.

    II

    MX. IV 250 154 kdx/tnt 152 TNT

    It 11.35 58 T a il P is to ls #28 or #30

    Service

    MX. I 500 291 TNT Round 14.0 74 Nose Fuze # 32 Same as

    100 lb . c lasso r / * a n t

    Obsolescent

    MX. I I 500 It It It 1 II

    MX. I l l 500 508 Baratol n 14.3 76 1 that l ig h t II

    MX. IV 500 282 TNT It 1 72.5 T a ilPl3tOl3#28 or #30

    sreen Dana is 6"from nose.

    II

    Me. I 600

    1

    432 Mlnol 439 Torpex

    Concave17.5 56.7 T a ilFuzeif 0*?

    Same gene ra l markings.

    Service

    Note -1. Attachment welded to nose to prevent r icoch et. Increasing the o v e ra ll

    length o f 42 Inches by severa l inches.Table 1 - B r it ish Depth Bombs

    B r it ishDesignation

    Location F itted in the fo llo w ing bombs

    Means o f Arming

    Means o f F ir in g

    Max.Dlam.

    Length Status

    No. 32 Fuze

    Nose MX. I , I I , I I I ser ies .

    A ir vanes. 200 f t . a t 100 m/hr.

    Impact w ith delays o f 0 .5 ,1 . 0 , 1 . 5 , 2.0 seconds.

    2?5 7'.'0 Obsolescent.

    No. 30 P is to l No. 28 P is to l

    T a il mx. r r, v iSeries.

    A ir vane. 13 revolu tions

    Impact with delays up to 113CCOnd3.

    2?0 3'.'88 S erv ic e . # 28 is fo r land bombardment.

    No. 862 Fuze

    T a il Mk. I 600 lbs.

    Arming w ire w ith drawn.

    Hydros ta t ic Pressure 30 f t . depth.

    2?0 5"5 S erv ice .

    No. 875 * 895Fuzes

    T a ll Mk. VI 100 lb . Mk. I 600 lb .

    Arming w ire w ithdrawn.

    Hydros ta t icPressure.

    2?13 4V75 Service 895 is re p lacing 875.

    Table 2 - B r it is h Depth Bomb Fuzes and P is to ls

    CONFIDENTIAL -2

  • BRITISH DEPTH BOMBS

    In troduction

    I . The B r it is h employ fou r s izes and types o f depth boobs:

    (a ) 100 lb . Marks I , I I . H I . iv and VI

    ( * ) 250 lb . Marks I , I I . I I I and IV.

    (c ) 500 lb . Marks I , I I . I I I and IV.

    (d ) 600 lb . Mark I .

    2. Service depth bombs are o rd in a r ily fuzed In the t a l l on ly , although e a r l ie r models, now obso lescen t, employ only nose fu zes. In rare cases, both nose and t a l l fuzes may be encountered. Two methods are employed to obtain depth f i r in g :

    (a ) Delay f i r in g detonators and powder tra in s .

    (b ) H ydrostatic fu zes.

    >. A l l s

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