The SBD Dauntless and the five minutes that turned the Pacific War at Midway

On June 4, 1942, Commander Wade McClusky led 54 Douglas SBD Dauntless dive bombers to a target that wasn’t where it was supposed to be - and kept flying anyway. That decision, made on fumes and instinct, produced the most consequential dive-bombing attack in naval aviation history. Three of Japan’s four fleet carriers were mortally wounded before the morning was over.

How American Intelligence Set the Trap

Six months after Pearl Harbor, the Imperial Japanese Navy had not lost a meaningful engagement. Their carrier strike force was unbeaten, and their pilots - many of them veterans of years of combat over China before the war formally began - were among the best-trained naval aviators in the world.

In a basement at Pearl Harbor, a Navy code-breaker named Joseph Rochefort was reading their mail. His team had broken enough of the Japanese naval code to identify that a major operation was targeting an island designated “AF” in Japanese communications. Rochefort believed AF was Midway Atoll - America’s westernmost outpost in the Pacific - but needed confirmation.

His solution was pure tradecraft. He had Midway transmit a plaintext radio message reporting that their water distillation plant had broken down. Two days later, Japanese radio traffic referenced a water shortage at AF. Rochefort had his confirmation.

When Admiral Yamamoto’s fleet sailed east in late May - four fleet carriers named Akagi, Kaga, Soryu, and Hiryu, escorted by battleships, cruisers, and transports - the Americans were already positioned and waiting.

An Unequal Fight, on Paper

Japan had four fleet carriers. The U.S. Navy had three, and one of them, the USS Yorktown, had been badly damaged at the Battle of the Coral Sea just weeks earlier. Naval engineers estimated three months of drydock repairs to make her seaworthy again.

The Pearl Harbor shipyard repaired her in 72 hours. Welders worked inside the ship while fires were still being extinguished. By May 29 she was back at sea with a patched deck and a borrowed air group.

The Americans were improvising with everything they had. The Japanese were executing a plan that had worked every time.

The Decision That Trapped Nagumo

At 4:30 a.m. on June 4, the Japanese carriers launched their first strike wave against Midway - 36 bombers with Zero fighter escorts. American radar picked them up at 93 miles out. Every aircraft on Midway scrambled to meet them.

The strike hit the island hard, but the American planes weren’t on the ground. The Japanese strike commander radioed back that Midway needed a second attack before it could be neutralized.

Vice Admiral Chuichi Nagumo now faced a critical decision. His second wave of aircraft, sitting on the hangar decks, was armed with aerial torpedoes - weapons designed to sink warships. With no confirmed American fleet in the area, torpedoes were useless against shore installations. He ordered the rearming: strip out the torpedoes, load contact bombs.

What Nagumo didn’t know was that one of his ten scout planes - the aircraft covering the sector where the American carriers actually were - had launched late due to a bent catapult and was flying a shortened, sloppy search pattern.

Thirty minutes into the rearming, that late scout plane found the American fleet. One carrier, maybe two.

Nagumo was now caught in an impossible position. Half his aircraft were mid-rearming on the hangar deck. His first strike wave was returning from Midway, low on fuel and needing to land. He couldn’t recover aircraft and launch simultaneously. He ordered the deck crews to work faster and waited.

While they worked, American torpedo planes were already inbound.

The Torpedo Pilots Who Cleared the Sky

What the torpedo squadrons accomplished at Midway is usually described as a failure. The numbers support that reading. What they actually did - unintentionally - was win the battle.

Torpedo Squadron 8 from the USS Hornet went in first: 15 Devastator torpedo bombers, flying at 115 knots at wave-top height, with no fighter escort after getting separated in the clouds. The Japanese combat air patrol - Zero fighters orbiting the fleet at altitude - peeled off and came down on them. All 15 planes were shot down.

The sole survivor of Torpedo Squadron 8 was Ensign George Gay, who watched the battle from the water, floating in wreckage, hiding under a seat cushion to avoid being strafed.

Torpedo Squadron 6 from the Enterprise followed: 14 planes. Ten were shot down. Torpedo Squadron 3 from the Yorktown went in third: 12 planes. Ten were shot down.

In roughly 45 minutes, the Americans lost 41 torpedo planes and around 100 crewmen. They had not hit a single Japanese ship.

But every Zero in the combat air patrol had been dragged down to wave-top height, chasing torpedo planes at low altitude, burning fuel. The sky above 14,000 feet was completely clear.

How McClusky Found the Fleet on Fumes

McClusky’s group launched around 7:00 a.m. and flew to the intercept coordinates. The Japanese fleet wasn’t there. He checked his fuel - already drawing on reserve. By any reasonable calculation, he should have turned back.

He turned northwest instead. A hunch: if the fleet had changed course, they probably turned into the wind to recover aircraft, and northwest was into the wind that morning. He flew 35 more miles, fuel gauges dropping toward the red, some of his pilots already calculating where they’d have to ditch.

Then one of his pilots spotted it: the destroyer Arashi, cutting a bright white wake at full speed heading northwest. The Arashi had spent the last half hour depth-charging the American submarine Nautilus and was racing back to rejoin the fleet.

McClusky followed the wake.

Why the SBD Dauntless Was the Right Airplane

The Douglas SBD Dauntless was not glamorous. Its top speed fully loaded was 255 mph. Pilots joked that SBD stood for “Slow But Deadly.” It wasn’t the fastest dive bomber in the inventory, and it was already considered outdated by the time of Midway.

What it had was stability in the dive.

The Dauntless used perforated split flaps mounted under the trailing edge of the wing as dive brakes. When a pilot pushed over at altitude and opened those flaps, airspeed stayed controllable all the way to the pull-out. Other aircraft dove faster but vibrated and buffeted, making accurate aiming nearly impossible. The Dauntless came down at a steady 300 knots at approximately 70 degrees - nearly vertical - and a pilot could keep his gunsight on the target throughout the run.

An experienced SBD pilot could put a 1,000-pound bomb within 30 feet of his aim point.

Five Minutes That Sank Three Carriers

At 10:22 a.m., McClusky’s Enterprise dive bombers crested over the Japanese carrier force. Almost simultaneously, dive bombers from the Yorktown arrived over the Soryu.

The Japanese flight decks that morning were packed: aircraft being fueled, aircraft being rearmed, aerial torpedoes sitting on the hangar deck where they’d been swapped out, fuel hoses running across the deck plating.

McClusky’s group split. One section dove on the Kaga. Another targeted the Akagi - Nagumo’s flagship, the same carrier that had launched the Pearl Harbor raid.

The first bomb to hit Kaga struck an aviation fuel truck on the flight deck. Kaga took four direct hits. Aviation fuel ignited. Ordnance stacked in the hangar deck began cooking off. She was burning stem to stern in under 20 minutes.

Akagi took two hits, possibly three. One bomb landed among armed aircraft on the flight deck and triggered a chain of explosions through the ship’s ordnance and fuel stores. Her executive officer later wrote that the ship’s interior looked as though a tornado had passed through.

Soryu took three direct hits in 90 seconds.

In roughly five minutes - some firsthand accounts say three - three of the most powerful aircraft carriers in the world were mortally wounded and burning.

The Fourth Carrier

The Hiryu broke north and escaped the initial attack. She launched two strike waves against the Yorktown that afternoon, hitting her twice with bombs and twice with torpedoes. The already-patched Yorktown went dead in the water, listed, and was eventually abandoned. She was later sunk by a Japanese submarine while under tow.

Late that same afternoon, dive bombers from the Enterprise - including some from the Yorktown’s own air group, transferred after their ship was hit - found the Hiryu. Four direct hits. She burned through the night and sank the following morning.

June 4, 1942: Japan arrived with four fleet carriers. Japan left with none.

The Cost Japan Could Never Repay

The hardware loss was severe. The strategic loss was worse.

Japan could not replace those ships fast enough. More critically, they could not replace the aircrews. The best-trained naval aviators in the world - veterans of combat since 1937 over China, survivors of every Japanese carrier operation from Pearl Harbor to the Indian Ocean raids - went down with those ships or into the water around them.

American training programs were producing thousands of new pilots every year. Japan’s pilot pipeline was far slower and far smaller. Midway didn’t just cost Japan four carriers. It cost Japan the experienced core of a generation of naval aviators. They never fully recovered.

Dick Best and the Decisive Bomb

Lieutenant Commander Dick Best commanded Bombing Six on the Enterprise. During the attack, he looked below and saw that most of McClusky’s aircraft were already diving on the Kaga. In the seconds available to him - nose down at 70 degrees, altimeter unwinding - he made a call.

He broke off. Took two wingmen. Redirected toward the Akagi.

Three planes. Three bombs at 1,000 pounds each.

One hit. Best’s bomb landed among the parked, fueled aircraft on Akagi’s flight deck and started the chain of explosions that doomed the ship.

Best pulled out and pointed his Dauntless toward home. His engine quit on the downwind leg - out of fuel - and he glided to the deck.

He never flew in combat again. During the battle, his oxygen system had malfunctioned, and he inhaled caustic soda from the regulator. Doctors eventually found tuberculosis, likely worsened by the lung damage. He survived the war and lived to 91, dying in 2012.

He put the decisive bomb on Akagi, glided to a dead-stick landing, and then his body gave out on him.

The Margin

McClusky landed with an estimated 10 gallons of fuel remaining. Investigators later calculated that if he had flown another five minutes before spotting the Arashi, he would have run dry before reaching the targets.

Ten gallons. Five minutes. Four carriers.

The Dauntless went on to sink more enemy shipping than any other Allied aircraft in the Pacific war. It flew every major naval campaign through 1944, when the newer Curtiss Helldiver began replacing it. When final tallies came in, the SBD Dauntless had accounted for more Japanese tonnage - ships, carriers, and heavy cruisers - than all other Allied weapons combined in the first two years of the Pacific war.

Surviving examples are on display at the National Naval Aviation Museum in Pensacola and the National Air and Space Museum in Washington. They don’t draw crowds the way a Corsair or a Mustang does. They’re not that kind of airplane.

But for about five minutes on a June morning in 1942, they were exactly what the world needed.

Key Takeaways

• The Battle of Midway succeeded because of three compounding advantages: broken Japanese codes, Nagumo’s fatal rearming decision, and McClusky’s refusal to turn back when his fuel said otherwise.
• The American torpedo squadrons - which suffered catastrophic losses without scoring a single hit - inadvertently pulled the Japanese combat air patrol down to wave-top height, leaving the sky above the carriers completely undefended.
• Three Japanese fleet carriers were sunk in approximately five minutes; all four were gone by the end of June 4.
• The irreplaceable loss was not the ships but the experienced aircrews - Japan’s veteran naval aviators, trained since the 1930s, went down with the carriers and were never adequately replaced.
• The SBD Dauntless, considered obsolete before the battle, became the most effective ship-killing aircraft of the Pacific war, ultimately sinking more Japanese tonnage than all other Allied weapons combined in the war’s first two years.