How One Submarine Crew Turned a Routine Patrol Into a Record Breaking Attack

Audacious Encounter

• 💡 On November 28, 1943, Commander Richard O'Kane of the USS Tang discovered Transport Group 7, the largest concentration of Japanese shipping he had seen, consisting of seven merchant ships, eight destroyers, and three cruisers.
• 🎯 Despite being on a "routine patrol" with orders to avoid unnecessary risk, O'Kane made a four-second decision to attack the heavily escorted convoy.
• ⚠️ The convoy's formation presented an impenetrable detection net and was moving through shallow water, making evasion difficult if detected.

Calculated Aggression

• 🧠 O'Kane, having learned from USS Wahoo's aggressive tactics but also its mistakes, planned an attack that was both aggressive and calculated.
• 🚀 He exploited the convoy's predictable straight-line movement and constant speed, identifying it as a vulnerability.
• 🛠️ Instead of standard procedure, O'Kane ordered Tang to penetrate the destroyer screen and close to point-blank range, slipping between two destroyers undetected.

Devastating Attack

• 🔥 Inside the defensive perimeter, Tang fired six torpedoes at three large cargo ships, crippling them and causing immediate chaos among the escorts.
• ⚡ O'Kane then fired six more torpedoes, destroying two tankers and crippling a cruiser, overwhelming the escorts' ability to respond coherently.
• 💥 The destroyer Yamagumo, which had tracked Tang's position, was destroyed by six point-blank torpedoes, disintegrating in less than 30 seconds.

Record-Breaking Success

• ✅ Tang proceeded to sink two more cargo ships, bringing the total to nine ships destroyed or crippled, with two cruisers also damaged.
• 🏆 O'Kane's final tally was 10 Japanese ships destroyed or critically damaged, including one destroyer, setting a record for the most successful single submarine attack in U.S. Navy history.
• 🌊 Despite being hunted by destroyers and enduring over 40 depth charges, Tang escaped by going deep and using a thermal layer to mask its signature.

Strategic Impact and Legacy

• 📈 The annihilation of Transport Group 7 disrupted Japanese logistics in the Philippines and forced a reallocation of naval assets.
• 🔑 O'Kane's attack shattered the assumption that heavily escorted convoys were untouchable, leading to a psychological impact on Japanese naval commanders and weakening their capabilities.
• 🎖️ Commander Richard O'Kane received the Navy Cross for this action and later the Medal of Honor, with Tang's record becoming a case study in tactical audacity.