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Douglas TBD Devastator

Douglas · Carrier Torpedo Bomber / Torpedo Bombing / Level Bombing · USA · WWII (1939–1945)

Douglas TBD Devastator — Carrier Torpedo Bomber / Torpedo Bombing / Level Bombing
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The Douglas TBD Devastator was the U.S. Navy's first all-metal carrier-based monoplane and its primary carrier torpedo bomber from 1937 to 1942 — known forever for its disastrous combat debut at Midway. Douglas built 130 TBDs between 1937 and 1939 — a small production run reflecting the Navy's small carrier force in the late 1930s. The TBD was the Navy's most-modern carrier aircraft when delivered, but by 1941 it had become hopelessly obsolete; the type's combat debut at the Battle of Midway in June 1942 was a catastrophe that ended its operational career.

The TBD was a three-seat low-wing all-metal aircraft with semi-retractable landing gear, hydraulically-folded wings (a U.S. Navy first), and an internal bomb bay for the 22-inch Mk 13 torpedo. Power: Pratt & Whitney R-1830 Twin Wasp 14-cylinder radial (900 hp). Maximum speed 206 mph; range 435 miles with torpedo (or 716 miles with bombs in lieu of torpedo); service ceiling 19,500 ft. Defensive armament: one .30-cal forward-firing machine gun + one flexible .30-cal in the rear cockpit. Crew: pilot, gunner-radioman, bombardier-navigator. The TBD was modern in 1937 but was 5 years old by 1941, and aviation technology had moved fast.

The Battle of Midway disaster, 4 June 1942. Three TBD squadrons (VT-3 from USS Yorktown, VT-6 from USS Enterprise, VT-8 from USS Hornet) attacked the Japanese carrier strike force without effective fighter cover. The TBDs had to fly low and slow (~120 mph) for torpedo runs, making them easy targets for Japanese A6M Zeros. Of 41 TBDs launched, 35 were shot down (85% loss rate); only 6 returned. None of their torpedoes hit; the surface ships dodged or disarmed every weapon. But the TBD attacks pulled Japanese fighter cover down to low altitude, leaving the higher-altitude Japanese carriers undefended when SBD Dauntlesses arrived a few minutes later. The TBD sacrifice was directly responsible for the SBD success that won the battle.

The TBD was withdrawn from front-line carrier service immediately after Midway and replaced by the new Grumman TBF Avenger (already entering service). About 39 surviving TBDs continued in second-line training and target-towing roles through 1944. None survives today; one TBD-1 lies on the floor of Lake Michigan after a 1942 training accident, but no preserved airframe exists. The TBD is one of the most-famous WWII U.S. naval aircraft despite (and partly because of) its catastrophic combat debut.

For Kids — a shorter, friendlier version

The Douglas TBD Devastator was a very important plane for the American Navy. It was the Navy's first carrier plane made entirely of metal. It could fold its wings so it would fit on a ship's deck. That wing-folding trick was a Navy first!

Douglas built 130 Devastators between 1937 and 1939. When it was new, it was the most modern carrier plane the Navy had. It carried a big torpedo under its belly to attack enemy ships. Three crew members flew together: a pilot, a gunner, and a navigator.

The Devastator had one big engine with 14 cylinders. It could fly up to 206 miles per hour. That is slower than most fighter planes of World War II. By 1941, newer and faster planes had made it outdated.

The Devastator's hardest day came at the Battle of Midway on June 4, 1942. The Navy sent 41 Devastators into battle. Thirty-five of them were brought down by the enemy. It was one of the saddest moments in Navy aviation history.

Even so, the Devastator's brave crews helped win the battle. Enemy fighters raced down to stop them. This left the skies open for other American dive bombers to attack. Those dive bombers helped turn the tide of the whole war.

Fun Facts

  • The Devastator was the first all-metal plane ever used on American Navy carriers.
  • Its wings could fold up hydraulically — that was a brand-new trick for the Navy in 1937.
  • Only 130 Devastators were ever built, making it smaller than many other wartime fleets.
  • The Devastator carried a torpedo that was longer than a full-grown adult lying down.
  • Its top speed of 206 miles per hour made it faster than a car but slower than most fighters.
  • At the Battle of Midway, 35 out of 41 Devastators were brought down in a single day.
  • Three crew members shared the cockpit area: a pilot, a gunner-radioman, and a navigator.
  • After Midway, the Navy quickly pulled the Devastator out of front-line service for good.

Kids’ Questions

Why did the Devastator have folding wings?

Aircraft carriers have limited space on their decks and in their hangars. Folding wings let the plane take up less room. The Devastator was the first Navy carrier plane to use hydraulic wing folding, meaning a motor did the folding automatically.

Why was the Devastator brought down so easily at Midway?

By 1942, the Devastator was five years old and aviation had moved on fast. Enemy fighters were much faster and could catch it easily. The Devastator also had to fly low and slow to drop its torpedo, making it an easy target.

Did the Devastator crews help win the Battle of Midway even though so many were brought down?

Yes! Enemy fighters dove low to stop the Devastators. That left the sky above clear for American dive bombers to swoop in. Those dive bombers hit four enemy carriers and helped win the battle.

Variants

TBD-1 (130 built)
Single production variant. 130 built between 1937 and 1939. R-1830 Twin Wasp engine, hydraulic folding wings, 22-inch torpedo internal bay. The Navy's first all-metal carrier monoplane.
TBD-1A (1 built)
Float-plane experimental conversion. Single airframe converted in 1939 to test catapult-launched float operations. Returned to standard configuration in 1940.

Notable Operators

U.S. Navy
Sole operator. Carrier service 1937-1942. Equipped torpedo squadrons on every U.S. fleet carrier in the Pacific. After Midway disaster (4 June 1942), withdrawn from front-line service and used in training and target-towing through 1944.

Frequently Asked Questions

What happened to the TBDs at Midway?

Three squadrons of TBDs (VT-3, VT-6, VT-8) attacked the Japanese carrier strike force on 4 June 1942 without effective fighter cover. 35 of 41 TBDs were shot down by Japanese Zeros (85% loss rate). None of their torpedoes hit. But the TBD attacks pulled Japanese fighter cover down to low altitude; when SBDs arrived a few minutes later at altitude, they found undefended carriers and sank four of them — winning the battle. The TBD sacrifice directly enabled the SBD success.

Why was the TBD obsolete by 1941?

The TBD was designed in 1934-1935 and entered service in 1937. By 1941 it was 5 years old, in an era when aviation technology was advancing rapidly. The 206 mph maximum speed was about half that of contemporary Japanese A6M Zero fighters. Defensive armament (single .30-cal flexible gun) was inadequate against fighter attack. The 120 mph torpedo-run speed gave Japanese gunners easy aim. The Navy knew the TBD was obsolete and had ordered the TBF Avenger replacement in 1940; the Avenger entered service immediately after Midway.

How many TBDs were built?

Only 130 airframes between 1937 and 1939 — a small production run reflecting the U.S. Navy's small late-1930s carrier force. By December 1941 only about 100 TBDs remained operational; six were lost at Coral Sea (May 1942) and 35 at Midway (June 1942). Post-Midway, only ~39 TBDs survived for training service.

What replaced the TBD?

The Grumman TBF Avenger, which entered combat at Midway (6 pre-production aircraft attacked from Midway Atoll alongside the carrier-based TBDs, with similarly-disastrous results). The Avenger replaced the TBD in carrier service through the second half of 1942. The TBD's abrupt obsolescence drove the U.S. Navy's later doctrine of having modern aircraft already in development before any in-service type became obsolete.

Are any TBDs preserved?

No — no TBD Devastator survives in preservation condition anywhere. One TBD-1 (BuNo 0379) lies on the floor of Lake Michigan after a 1942 training accident; the wreckage was located in 2009 but has not been recovered. The TBD is one of the few major WWII U.S. naval aircraft types with zero surviving airframes.

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