MAD question

Discussion in 'General' started by robin bird, Jul 17, 2018.

  1. robin bird

    robin bird Well-Known Member

    HMS Tuna on June 28, 1943, was involved in trials off the Outer Hebrides. I understand these were to do with the testing of MAD, the magnetic airborne detector. The aircraft involved was Catalina FP258G belonging to the Marine Aircraft Experimental Establishment. Can anyone confirm that HMS Tuna was the submarine involved?
     
  2. timuk

    timuk Well-Known Member

    Dates don't quite match and by no means conclusive but from U-Boat.net:
    23 Jun 1943
    HMS Tuna (Lt. D.S.R. Martin, DSO, RN) departed from Holy Loch for exercises with aircraft off the west coast of Scotland. She was escorted by HMS Ambuscade (Lt.Cdr. D.E. Mansfield, RN) and HMS Kingfisher (Lt.Cdr.(Retd.) G.H. Gandy, RN).

    28 Jun 1943
    HMS Tuna (Lt. D.S.R. Martin, DSO, RN) returns to Holy Loch.

    More information might be available in ADM 173/18309 Log of HM S/M Tuna June 1943 or
    AIR 20/1155 Anti-submarine warfare: trials of magnetic airborne detectors and magnetic airborne bomb sights Oct 1942-Aug 1943.

    Tim
     
    Tricky Dicky likes this.
  3. Trux

    Trux 21 AG Patron

    Not my area of expertise but I thought MAD was Magnetic Anomaly Detection.

    Mike
     
  4. timuk

    timuk Well-Known Member

    I concur with you Mike, however the title of AIR 20/1155 is definitely Magnetic Airborne Detection. I suspect a name change along the way.

    Tim
     
  5. Trux

    Trux 21 AG Patron

    Definitely not Mutual Assured Destruction though. I guess both are correct.

    Mike
     
  6. Tricky Dicky

    Tricky Dicky Don'tre member

    Robin

    I assume you laready have these??

    Magnetic Airborne Detection against U-Boats | The National Archives
    Reference: AIR 15/452
    Description:
    Magnetic Airborne Detection against U-Boats
    Date: 1944 Aug - 1945 July
    Held by: The National Archives, Kew
    Former reference in its original department: AHB Reference and Coastal Command Reference S17091
    Legal status: Public Record(s)
    Closure status: Open Document, Open Description

    M.A.D. (Magnetic Airborne Detection) equipment: operational use | The National Archives
    Reference: AIR 20/1276
    Description:
    M.A.D. (Magnetic Airborne Detection) equipment: operational use
    Date: 1945 Jan.-July
    Held by: The National Archives, Kew
    Former reference in its original department: IIK/85/105
    Legal status: Public Record(s)
    Closure status: Open Document, Open Description

    I realise they are not 1943 but the reports may note findings from earlier experiments

    TD
     
  7. Roy Martin

    Roy Martin Senior Member

    In Canada in the mid 60s it was referred to as the Magnetic Anomaly Detector
     
  8. Tricky Dicky

    Tricky Dicky Don'tre member

    More fuel to the fire, thanks, so that also means files below might come into play, if not already acquired

    SHIPS AND SHIPPING: General (Code B, 73/1): Detection of U-boats: Magnetic Anomaly... | The National Archives
    Reference: AIR 2/8580
    Description:
    SHIPS AND SHIPPING: General (Code B, 73/1): Detection of U-boats: Magnetic Anomaly Detector equipment
    Date: 1943-1944
    Held by: The National Archives, Kew
    Former reference in its original department: C92853/57
    Legal status: Public Record(s)
    Closure status: Open Document, Open Description

    U.S. magnetic anomaly detector Mk IVB2 for submarine detection | The National Archives
    Reference: AVIA 6/12607
    Description:
    U.S. magnetic anomaly detector Mk IVB2 for submarine detection
    Date: 1943
    Held by: The National Archives, Kew
    Former reference in its original department: TN Inst 745
    Legal status: Public Record(s)
    Closure status: Open Document, Open Description

    TD
     
  9. robin bird

    robin bird Well-Known Member

    MAD was initially known as Magnetic Airborne Detector, then known as magnetic anomaly detector. I note from the feedback that Tuna was involved in exercises with aircraft off the west coast of Scotland between June 23/28 1943, which are the dates I have for the MAD trials conducted by MAEE some hundred and fifty miles west off the Outer Hebrides. I think too that Tuna was testing radar and after the exercise was surveyed at Rosneath on its magnetic condition.. A Cat (Catalina FP258/G) hunting a tin fish of Tuna.
     
    Last edited: Jul 20, 2018

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