FACT: America Was Experimenting with Suicide Drones in World War II

November 18, 2017 Topic: History Region: Europe Blog Brand: The Buzz Tags: World War IINazisU.S. Air ForceB-17dronesMilitaryTechnologyV2

FACT: America Was Experimenting with Suicide Drones in World War II

During Operation Aphrodite, radio controlled B-17s proved to be deadly and ahead of their time.

When it came to advanced military technology in World War II, arguably no one was better at it than Nazi Germany, whose scientists Adolf Hitler keep busy trying to invent the ultimate “super weapon” capable of defeating his enemies.

For a while, it seemed that Germany might just succeed. After all, it was the Germans who had created, tested, and deployed the V-1 flying bomb, the V-2 ballistic missile, the Fritz X glide bomb, and a family of jet-powered aircraft. German tanks were, in many respects, superior to American tanks. Only in the race to build an atomic bomb were the German scientists lagging behind the United States and Great Britain.

During Operation Avalanche—the invasion of Salerno, Italy, on September 9, 1943—the Allies had their first encounter with German drones. After Allied landing craft deposited infantry on the beaches south of the city, the battleships, cruisers, and destroyers accompanying the troop transports became targets of an unexpected new weapons system: a radio-controlled glide bomb called the Fritz X.

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The Fritz X (also known variously as the Ruhrstahl SD 1400 X, Kramer X-1, FX 1400, and PC 1400X) was 11 feet long, had four stubby wings, carried 705 pounds of amatol explosive in an armor-piercing warhead, and had an operational range of just over three miles. It could reach a speed of 770 mph—faster than any aircraft of the day.

Early on September 13, a Dornier Do-217 K-2 bomber released a Fritz X from an altitude of 18,700 feet; gunners aboard the USS Savannah (CL-42), a 9,475-ton Brooklyn-class light cruiser, saw the missile and tried to shoot it down as it streaked toward them, but without success. The drone slammed into the top of a 6-inch gun turret and penetrated deep into Savannah’s hull before exploding and killing 197 sailors and wounding 15 more. Only through sheer luck and incredible bravery on the part of her remaining crew was the badly damaged ship able to make port in Malta.

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That drone was one of several used against American warships on September 13. Others barely missed the cruiser USS Philadelphia, while the British light cruiser HMS Uganda was hit that same afternoon; two cargo ships may also have been struck. Three days later, the British battleship HMS Warspite was also hit by a guided bomb but remained afloat.

The United States was shocked by the technological lead the Germans had opened up in sky-borne weapons. Of course, by August 1944, the United States was already well along in its development of an atomic bomb, but in other aspects of weaponry America had slipped behind.

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The United States began looking at ways to deliver a huge, conventional payload precisely on target. Even with the vaunted Norden bombsight, the boasted concept of “precision daylight bombing” rarely lived up to its billing.

What if, some officer in Washington D.C., said, we stuffed an unmanned bomber full of explosives and, by radio control or some other method, flew it directly into a target? The idea sounded good, especially since the United States (and Britain, too) was losing so many aviators on bombing runs over enemy-held territory. But how to accomplish it?

Engineers began working on the concept but discovered that it was well nigh impossible, given the technology of the time, to get a pilotless bomber to taxi and take off by remote control. The idea then evolved to a pilot and co-pilot taking off in an explosives-laden B-17 or B-24, gaining altitude, then bailing out over England while a trailing aircraft controlled the plane by radio signals, finally crashing it into the target.

On August 4, 1944, the Air Force put the concept to the test against hard-to-knock-out targets (such as V-1 and V-2 missile-launching sites, submarine pens, and deep underground installations) in what was called Operation Aphrodite.

The U.S. Army Air Forces loaded four war-weary, modified B-17 bombers, redesignated BQ-7s, each with 12,000 pounds of Torpex, which was used in both aerial and underwater torpedoes and was 50 percent more powerful than TNT.

The first test run out of RAF Fersfield, home of the 38th Bomb Group located northeast of London near Norwich, did not go well. The first B-17 took to the air and the pilots bailed out safely; the plane, however, spiraled into the ground with a resultant massive explosion near the coastal village of Orford. The second plane developed problems with the radio-control system and it, too, crashed; the pilot was also killed when he bailed out too soon. A third B-17 met a similar fate.

The fourth plane fared better, although it crashed about 1,500 feet short of its target, a massive, hardened V-2 site at Watten-Eperlecques in the Pas-de-Calais region of France, doing very little damage.