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  1. #1
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    7,5cm Flügelstabilisierte Langgranate Üb. (What fuze)

    In attachment , image of a 7,5cm Flügelstabilisierte Langgranate (correct me if this is not the right nomenclature)


    I had the following question : what fuze or fuzes are used with this projectile?
    thread diameter : M28 x 1,5

    any help is greatly appreciated.

    Thank you

    3B8F2C1A-4550-4077-B7CC-DEC7D310297F.jpg

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    MINENAZ16 (13th September 2019)

  3. #2
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    In the book of Ian V Hogg - German Secret Weapons of the Second World War (Czech translation published 2002) is a drawing quite similar to your projectile. The drawing shows an AZ 38 St fuze.
    Problem is that this fuze has 15x1 thread and needs 2500 to 3000 rpm's to arm.

    The AZ 41 fuze would be much more suitable.
    any live or recovered ordnance shown in my posts was dealt with by trained EOD personnel

  4. #3
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    A.Z. 38 St you say , well yes , the A.Z. 41 would make sense indeed. However , some time ago , I came by a photo of one in color , fuzed with a A.Z. 5075 (St.) or 5095. Even though I’m not sure if that was correct & which one of both it was.

  5. #4
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    AZ5075 has 26x1 thread size

    It could also have been one of the new fuzes with KM designation.

    Bob
    Last edited by Nabob; 8th September 2019 at 08:10 PM.
    any live or recovered ordnance shown in my posts was dealt with by trained EOD personnel

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    Then I believe I have made a mistake , the thread is definitely M26 x 1 , my mistake. Sorry.

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    Do any of you know what fuze goes on this? Thread diameter is M26 x 1

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    I think it could be the AZ 5075 or 5095, but to be sure ask Fjordhouse, he has a very nice one in his collection.
    Attached Images Attached Images
    Last edited by greif; 13th September 2019 at 10:13 PM.

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    Could it be a 5095? I’ve seen a few , yet the fuzes all seem to have a vorstecker. Just not quite sure

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    There was a variant of the AZ 5075 with a safety pin (vorstecker) ans a cap, the AZ 5075 m.K.
    The safety pin was used to prevent the deformation of the cross spring (Federkreuz) during transportation causing premature arming of the fuze.
    A removable cap was used to pravent function on leafes, twigs or camouflage nets. (this is more important with HEAT rounds)

    Both AZ 5075 and AZ 5095 are detonating fuzes (a Duplex detonator is used). If there was no Zündladung used, there had to be some other kind of booster.

    Bob
    Attached Images Attached Images
    any live or recovered ordnance shown in my posts was dealt with by trained EOD personnel

  12. #10
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    Quote Originally Posted by Nabob View Post

    Both AZ 5075 and AZ 5095 are detonating fuzes (a Duplex detonator is used). If there was no Zündladung used, there had to be some other kind of booster.

    Bob
    Unless it is a hollow charge projectile and I think it is (caliber 7,5 cm), there was a booster in the base.

 

 
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