19 December 2024

Japanese Night Attack Tactics, 1943

From The Mighty Moo: The USS Cowpens and Her Epic World War II Journey from Jinx Ship to the Navy's First Carrier into Tokyo Bay, by Nathan Canestaro (Grand Central, 2024), Kindle pp. 88-90:

The [U.S. Navy] task force beat a hasty retreat [from Kwajalein] with the enemy hot on their trail. Everyone expected trouble that evening, and the Japanese did not disappoint. They were expert at night attacks, with a robust playbook of tactics. A little before sunset, one or more snoopers—usually Betty torpedo bombers—would trail the American formation just out of range, radioing the ships’ position to their squadronmates ashore. When darkness fell, the snoopers dropped a string of float lights marking the direction the ships were traveling. When the striking planes arrived, the snoopers flew over the fleet at high altitude, dropping parachute flares to illuminate the ships for torpedo attacks. Getting spotlighted or backlit by brilliant flares produced a profound sense of vulnerability even among the most grizzled sailors. Capt. William Tomlinson, who commanded the Moo’s sister ship Belleau Wood, likened it to one of his recurring bad dreams where he was naked in a bathtub under the bright lights of Times Square—except in this case it was real.

Sure enough, a Japanese snooper shadowed the force in the late afternoon, and as Clark had warned, after dark it guided in the Bettys that the day’s strike had missed. Starting at 7 p.m. and continuing for the next six hours, Cowpens and the fleet were under almost continual attack, with small groups of one to four bombers at a time trying to break through the outer edges of the formation to torpedo the carriers at the center. When the Bettys were not attacking, they were circling or ganging up for a fresh strike, so that bogeys were constantly on US radar screens. The moon was dangerously bright, and sailors aboard the Moo could easily see the formation of ships around them, illuminated further by the fiery, hissing parachute flares that descended from high above.

Tracking the bogeys on radar, Pownall ordered frequent and sometimes radical changes of course to throw off the Japanese and present them the least favorable angle for a torpedo attack. While the maneuvering frustrated most attacks, there were many close calls. One of the Moo’s flight deck firefighters, George McIntyre, described how the water was “lousy with torpedoes.” One passed just astern of Cowpens, while Yorktown had two near misses of her own. Lexington was not as lucky, and took a torpedo to the stern, wrecking her steering gear and killing nine.

Just before 11 p.m., the enemy started to come in with more determination, and Admiral Pownall signaled his ships, ANYONE WITH A GOOD SETUP LET ’EM HAVE IT! Aboard the Moo, those topside watched the fireworks as the task group’s outer cordon of ships lit up the sky with muzzle flashes, orange tracers, and the bright flares of hit and burning Japanese planes. Cowpens and the other CVLs—unlike the larger ships in the fleet—had no radar-guided guns, and so to avoid giving away her position at night she usually did not fire unless the target was brightly illuminated and at close range. The crew, watching the action from the center of the fleet’s battle formation, quipped that what the Moo needed was a big neon arrow on the flight deck with the words: “The big carriers are over there.”

The Japanese planes withdrew just before 1:30 a.m. as the moon set, and soon after the task force’s radar scopes were clear of enemy aircraft.

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