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    • The Navy's Bureau of Ordnance

      • What's more, the submarine service did not develop the Mark 14 torpedo, it was developed entirely by the Navy's Bureau of Ordnance (BuOrd) in strict secrecy.
  1. The Mark 14 torpedo was the United States Navy's standard submarine-launched anti-ship torpedo of World War II. This weapon was plagued with many problems which crippled its performance early in the war.

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    • The Mark 14 Torpedo
    • Depth Control Issues with The Mark 14 Torpedo
    • Issues with The Mark 6 Magnetic Influence Exploder
    • Issue with The Contact Exploder
    • The Mark 14 Torpedo Scandal
    • “Get The Bureau Off Its Duff”

    The Mark 14 torpedo was an anti-ship torpedo used by the US Navy during the Second World War. Developed during the Great Depression at the Naval Torpedo Station in Newport, Rhode Island, it was intended to replace the World War I-era Mark 10 torpedo. It could travel at a top speed of 46.3 knots and had greater depth stabilization. The Mark 6 explod...

    Depth control proved to be an immense issue for the Mark 14 torpedo. Numerous incidents showed there were problems with the depth at which the torpedoes ran – one during a war patrol by Com. Tyrell D. Jacobs and another by Pete Ferrall – and it wasn’t long before many servicemen began to believe the Mk 14 was faulty. While it was initially determin...

    The Mark 6 magnetic influence exploder had a great appeal, offering the possibility of detonating beneath the vulnerable undersides of warships. Its development was a closely-guarded secret, and it was tested aboard the USS Raleigh (CL-7) and Indianapolis(CL/CA-35). When designing the exploder, the idea was to sense a magnetic field through the mag...

    The issue of speed with the contact exploder was only truly addressed once the other two problems were resolved. Development of the Mark 14 torpedo didn’t addressthe speed increase from 33.5 to 46.3 knots. As such, the increased speed could bend the vertical pins that guided the firing pin block. This was enough to cause the firing pins to miss the...

    The scandal surrounding the Mark 14 torpedo had less to do with the weapon itself and more to do with the refusal of the BuOrd to address the issues. Then-Rear Adm. Charles A. Lockwood Jr., Commander, Submarines, Southwest Pacific during WWII, chose to take on the BuOrd himself and get them to fix the recurring problems. Originally, the BuOrd claim...

    While at the conference, Lockwood iconically said, “If the Bureau of Ordnance can’t provide us with torpedoes that will hit and explode… then for God’s sake, get the Bureau of Ships to design a boat hook with which we can rip the plates off a target’s side.” Although impactful, his statement was not taken kindly and made it seem as though he was di...

  3. Aug 10, 2021 · In 1942, Lockwood had forced the powerful Bureau of Ordnance (BuOrd) to admit to and fix faults in the Mark 14 torpedo’s depth gauge, the cause of torpedoes running too deep.

  4. On 7 December 1941, the primary torpedo for all fleet submarines was the Mark-XIV torpedo. The torpedo was powered by an alcohol-fueled steam turbine that drove two counter-rotating propellers. At 31.5 knots, it had a range of 9,000 yards, while its range at 46 knots was limited to 4,500 yards.

  5. Designed primarily by engineers at the Navy Bureau of Ordnance (BuOrd), the Mark 14 was built at the Newport Torpedo Station (NTS) beginning in 1926. At 21 feet long, 21 inches in diameter, and weighing more than 3,000 pounds, the Mark 14s were large and expensive weapons.

  6. Feb 17, 2020 · Amazingly, US torpedoes, especially the Mk.14, demonstrated that most of these possibilities could, in fact, occur. Depth control problems with US torpedoes were suspected by the Newport Torpedo Station (NTS-Newport) and BuOrd even before the United States entered WW II.

  7. The Mark 14 torpedo looked as if it had been designed by Rube Goldberg in a particularly creative mood. Its 92 pound Mark 6 detonator was a complicated affair complete with chains, spinners and a compass needle.

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