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  1. #1
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    Defeated armour plate from projectiles

    I found this piece of armoured plate believed to be from a Ram tank used as target practice on a Piat range. As you can see two holes punched at the top and spall marks from the hollow charge round and the cracks in the armoured plate. Anyone else have holed plating or armour penetrated by projectile, hollow charge, HESH or AP round. REME welding workshop years ago had a interesting collection of defeated armour. Interesting to see the effects such rounds had on armour. Anyone got any interesting pieces to show of defeated armour
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  3. #2
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    It looks more like the ramains of a HESH shell impact, the scab of metal that is smashed out on the inside of a tank on the spot where the HESH shell hit the outside of the tank.
    Regards, DJH

  4. #3
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    Too old for Hesh as the last use of the site when the army left was about 1948.

  5. #4
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    The 3.45 RCL gun was developed during the second world war. It used an early Hesh round.

  6. #5
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    HESH results on display at Larkhill.
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  7. #6
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    Early shaped charge warheads did not function properly quite often. Donald R. Kennedy ("History of the shape charge effect") recalls:

    In 1951, this writer was invited to observe infantrytraining at Camp Roberts, California, where it was obvious that the 2.36-inch Bazookaswere, for the most part, failing to detonate high order and form a jet as designed. Instead,most of the rounds were apparently functioned low order from crush-up on the target, asevidenced by the presence of many undeformed conical liners laying about on the test field.Further, the damage to the armor targets usually resembled that produced by a HEP or squashhead mechanism. Even the Army instructors seemed to be unaware that their Bazookaswere malfunctioning. They described the Bazooka's terminal effect as "discharging abaseball sized chunk of metal from the far side of the armor." There was no mention of apenetration hole.

    Note that Bazooka projectile was more advanced than PIAT, f.e. it got cone with more acute angle and stronger explosives. There were also some major quality issues with PIAT bombs production, f.e. cone was not attached strongly enough and it moved inside head during transport, there were voids in explosive filler etc. Hence many remains of early HEAT hits could look just like pieces from the first post of this topic.
    Last edited by Przezdzieblo; 3rd July 2018 at 12:58 PM.

  8. #7
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    3 x 120mm Tk L11 HESH scab.
    Taken on an A4 size padded envelope for scale. It is 8" across at the widest point.
    The edge photo shows the bowing of the inside of the armour before it rips off.
    The 6.5" AVRE also had a HESH round.


    1 - 120mm Tk HESH scab against 4.5%22 RHA - 1.jpg2 - 120mm Tk HESH scab against 4.5%22 RHA inside - 1.jpg3 - 120mm Tk HESH scab against 4.5%22 RHA edge - 1.jpg
    Last edited by AE501; 3rd July 2018 at 01:17 PM.

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  10. #8
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    Alittle off topic, but here is a 2.5" plate of 7075-T6 aluminum ( used in some aluminum armored carriers). A few Fourth of July s ago when I owned a .50, I shot .50 API, ball, and spotter tracer rounds from about 100 yds..The .50 API went through like butter, the ball did not go all the way but bulged the rear, and the most interesting was the spotter tracer, it blew/ melted a huge 2.5" wide crater about and inch plus deep.The 308 AP and API penetrated the length of the core, the bases could be seen flush with the surface....Happy Fourth to all....my youngest and I have a long day planned, a parade and three grocery bags of fun.
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    Last edited by 917601; 3rd July 2018 at 08:19 PM.

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  12. #9
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    IMHO, the words "aluminum" and "armor" should never be co-joined. Have fun with those three bags and Happy Independence Day.
    ALL ORDNANCE SHOWN BY ME HAS BEEN INERTED AND HAS NO LIVE FILLERS.

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  14. #10
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    Quote Originally Posted by Przezdzieblo View Post
    Early shaped charge warheads did not function properly quite often. Donald R. Kennedy ("History of the shape charge effect") recalls:

    In 1951, this writer was invited to observe infantrytraining at Camp Roberts, California, where it was obvious that the 2.36-inch Bazookaswere, for the most part, failing to detonate high order and form a jet as designed. Instead,most of the rounds were apparently functioned low order from crush-up on the target, asevidenced by the presence of many undeformed conical liners laying about on the test field.Further, the damage to the armor targets usually resembled that produced by a HEP or squashhead mechanism. Even the Army instructors seemed to be unaware that their Bazookaswere malfunctioning. They described the Bazooka's terminal effect as "discharging abaseball sized chunk of metal from the far side of the armor." There was no mention of apenetration hole.

    Note that Bazooka projectile was more advanced than PIAT, f.e. it got cone with more acute angle and stronger explosives. There were also some major quality issues with PIAT bombs production, f.e. cone was not attached strongly enough and it moved inside head during transport, there were voids in explosive filler etc. Hence many remains of early HEAT hits could look just like pieces from the first post of this topic.
    Given how the Bazooka failed to stop T-34-85s with less armor than the M6A5 was rated for, I'd call that old/poorly stored ammo and a failure to actually explain the mechanics of armor penetration to the instuctors

 

 

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