September 20, 2021

SHOULD HAVE SAVED NUKES FOR MOSCOW:

The Fire Raids on Japan (The History Learning Site, 19 May 2015)

The first bombing raid against Tokyo occurred on November 24th. The city was 1,500 miles from the Marianas. Brigadier-General Emmett O'Donnell flying the 'Dauntless Dotty' led 111 B-29's against the Musashima engine factory. The planes dropped their bombs from 30,000 feet and came across the first of a number of problems - accuracy. The B-29's were fitted with an excellent bomb aimer - the Norden - but it could not make out its target through low cloud. Also flying at 30,000 feet meant that the planes frequently flew in a jet stream wind that was between 100 and 200 mph which further complicated bomb aiming. Of the 111 planes on the raid, only 24 found the target.

In January 1945, Curtis LeMay flew to the Marianas to take control of 21st Bomber Command. The 20th Bomber Command, which had been based in India and China, was also transferred to the Marianas and LeMay was given command of this as well. Both units became the 20th Air Force. By March 1945, over 300 B-29's were taking part in raids over Japan.

However, flights over Japan remained risky as there were very many young Japanese men who were willing to take on the risk of attacking a B-29, despite its awesome firepower (12 x .50 inch guns and 1 cannon). When Japan introduced its 'George' and 'Jack' fighters, the number of casualties for the 20th Air Force increased and the damage done by the bombers was not really worth the losses. In March 1945, the capture of Iwo Jima meant that P-51 Mustangs could be used to escort the B-29's. P-61 'Black Widows' gave night time protection to the bombers during night raids. The Mustang was more than a match for the 'Jack' and 'George' fighters and daylight bombing raids over Japan became less hazardous with such protection.

LeMay still experienced one major problem though. The investment the Allies were getting for the number of bombs dropped was small. The bombers were not having a discernable impact on manufacturing in Japan. Pinpoint bombing was simply not giving the returns that LeMay wanted. He was also acutely aware that any potential invasion of Japan would be massively costly for the Americans if the Japanese Home Defence Force was well-equipped with reasonably modern weapons. If the manufacturing industries of Japan could not be destroyed, then there was no doubt in his mind, that the force would be well equipped - to the detriment of the Americans.

LeMay, having already seen the success of a fire raid on Hankow when B-29's flew much lower than their normal 30,000 feet and dropped incendiary bombs.

LeMay decided that Tokyo would be the first target for a massive raid on Japan itself. The raid was planned for the night of March 10th and the B-29's were to fly at between 5,000 and 8,000 feet. As Japan was not expected to send up night fighters, the guns from the planes were taken off as was anything that was deemed not useful to the raid. By effectively stripping the plane of non-essentials, more bombs could be carried for the raid. Along with Tokyo, Kobe, Osaka and Nagoya were also targeted. As each had flourishing cottage industries that fed the factories of each city, LeMay hoped to starve these factories of required parts. He also hoped that the fires that would be started would also destroy the larger factories as well. As the target for the raid was so large - a city area - the B-29's did not have to fly in strict formation, especially as little resistance was expected from the Japanese.
The incendiary bombs dropped were known as M-69's. These weighed just 6 lbs each and were dropped in a cluster of 38 within a container. One B-29 usually carried 37 of these containers, which equated to just over 1,400 bombs per plane. The bombs were set free from the container at 5,000 feet by a time fuse and then exploded on contact with the ground. When they did this, they spread a jelly-petrol compound that was highly inflammable.

For the attack on Tokyo, over 300 B-29's were involved. They took off for a flight that would get them to Tokyo just before dawn, thus giving them the cover of darkness, but with daylight for the return journey to the Marianas. They flew at 7,000 feet. This in itself may have baffled the city's defenders as they would have been used to the B-29's flying at 30,000 feet.

The raid had a massive impact on Tokyo. Photo-reconnaissance showed that 16 square miles of the city had been destroyed. Sixteen major factories - ironically scheduled for a future daylight raid - were destroyed along with many cottage industries. In parts of the city, the fires joined up to create a firestorm. The fires burned so fiercely and they consumed so much oxygen, that people in the locality suffocated. It is thought that 100,000 people were killed in the raid and another 100,000 injured. The Americans lost 14 B-29's; under the 5% rate of loss that was considered to be 'acceptable'.




Posted by at September 20, 2021 12:00 AM

  

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