Welcome to the Inert Ordnance Collectors.
Results 1 to 9 of 9

Thread: i.D. help

  1. #1
    Premium Member
    Join Date
    May 2008
    Location
    Netherlands
    Posts
    14
    Thanks
    0
    Thanked 16 Times in 7 Posts

    i.D. help

    Hello all

    Last week on a UXO job on de dutch/german river Ems we found a 45cm/18" torpedo airflask length 1.73 mtr.Can someone help me with the identification?1.jpg3.jpg4.jpg5.jpg6.jpg

  2. #2
    Junior Member
    Join Date
    Apr 2017
    Location
    belgium
    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts
    thx for the pics jack

  3. #3
    Senior Member
    Join Date
    Jan 2012
    Location
    Paris
    Posts
    244
    Thanks
    28
    Thanked 255 Times in 110 Posts
    Torpedo or may be British air dropped mine? The diameter may fit "A type" mines although the length is rather short (the body was generally over 2m long)

  4. #4
    Senior Member
    Join Date
    Feb 2009
    Location
    USA
    Posts
    322
    Thanks
    655
    Thanked 169 Times in 76 Posts
    Looks like a German G7?

    Jason

  5. #5
    Premium Member
    Join Date
    Jan 2009
    Location
    UK
    Posts
    790
    Thanks
    52
    Thanked 172 Times in 125 Posts
    Is there an 18" version of the G7?

    I thought they were a 21" torpedo

  6. #6
    Premium Member
    Join Date
    May 2008
    Location
    Netherlands
    Posts
    14
    Thanks
    0
    Thanked 16 Times in 7 Posts
    Hi everyone, I've just returned from the Uxo job on the Ems River and have taken some more pictures and measured some sizes, maybe we can do more with that.

    thank you in advance

    20170712_191930.jpgP7040009.jpgP7040010.jpgP7040008.jpg20170703_145610.jpg

  7. #7
    Premium Member
    Join Date
    Dec 2013
    Location
    Bergen, Norway
    Posts
    88
    Thanks
    5
    Thanked 79 Times in 40 Posts
    Quote Originally Posted by jacleon1785 View Post
    Last week on a UXO job on de dutch/german river Ems we found a 45cm/18" torpedo airflask length 1.73 mtr.Can someone help me with the identification?
    It's very hard to give an exact ID from just an airtank (which this is - definately no mine)... There are numerous 18"/45cm torpedoes from both WW1 and WW2 to choose from, including both naval and air-delivered examples from several nations.

    However, there's one detail on your photo that draws my attention: The "wholes"/"dimples" between the fastening bolts for the warhead (the head has obvioulsy separated from the airtank due to corrosion).

    The exact same features can be found on german G/7, G/7 AV, G/7* and G/7** torpedoes (all are pretty much identical in terms of exterior hull). Also, the next developments - G7v and G7v* - had this feature. One big problem though: These are all 50cm torpedoes (ie made before the standardization on 21"/53,34cm in the early 1920's).

    The G/7 predecessor G/6 (and variants) was 18"/45cm, and although I'm not sure it shared the same features of the airtank, it could be a valid candidate. As your airtank (and remaining part of the warheadflange) seems to be made of steel, it's most likely a torpedo made during/after WW1.

    The tailsection is always the best way to make an ID of a torpedo, and with that missing it's difficult unless you happen to find markings etc.
    Last edited by Natter; 22nd September 2017 at 10:41 AM.

  8. #8
    Premium Member
    Join Date
    Dec 2013
    Location
    Bergen, Norway
    Posts
    88
    Thanks
    5
    Thanked 79 Times in 40 Posts
    Quote Originally Posted by glevum View Post
    Is there an 18" version of the G7?
    I thought they were a 21" torpedo
    Apart from the 45cm G/125 and G/250 (Whitehead-torpedoes) there are no german 18"/45cm "G" torpedo.

    The letter is part of the designation introduced by Kriegsmarine, were the first letter indicates the diameter:
    G = 53,34cm/21" (including also older 50 and 52cm torpedoes used in WW2)
    F = 45cm/17.7")
    H = 60cm/23.7")
    M = 75cm/30")

    The number indicates the approximate length:
    7 = 7m
    6 = 6m
    5 = 5m

    The small letter following indicated type of propulsion and method of control. The T-number (roman) was a running number given to types as they were been introduced to operational service.

    Examples:
    G7a(TI) = Operational Kriegsmarine torpedo #1: 53,34cm torpedo with 7,163m length and wet-heater propulsion.
    G7ef(TX) = Operational Kriegsmarine torpedo #10: 53,34cm torpedo with 7,163m length, electric propulsion and remote control.

    I'm not sure the "G" in earlier torpedoes (like the G/6 and G/7) was part of a system, but I'm suspecting it also would indicate the diameter.

  9. #9
    Premium Member
    Join Date
    Dec 2013
    Location
    Bergen, Norway
    Posts
    88
    Thanks
    5
    Thanked 79 Times in 40 Posts
    Quote Originally Posted by Natter View Post
    The G/7 predecessor G/6 (and variants) was 18"/45cm, and although I'm not sure it shared the same features of the airtank, it could be a valid candidate
    Probably not... The attached image is a still from a video captured at the Malta War Museum who have the sole (?) existing example of a G/6 AV torpedo:
    3.jpg


    Examples of german G/7 torpedoes:
    1.jpg2.jpg

 

 

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Back to top