Japan’s Fatally Flawed Air Forces in World War II

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As the Japanese empire shrank, its air forces fell back on the logistics base. The aircraft repair system became less extended. Even so, by 1944 a growing shortage of spare parts for the older aircraft began to ground fighters and bombers. Minor battle damage to structurally weak aircraft, although repairable under better conditions, often meant that the plane never flew again.

Aviation fuel existed in sufficient quantities throughout the Japanese military into mid-1944. As early as late 1943, however, commanders began teaching pilots how to conserve fuel. When the fuel shortage finally hit, it generally had no immediate or widespread effect on combat operations, but it had an adverse effect on training programs. When aviation gasoline became scarce, army trainees flew gliders during the first month of training to save fuel. Fuel shortages started affecting combat operations in mid-1944, just when American air activity was reaching its peak.

Veteran instructors, including others on permanent limited duty and those recovering from wounds, began to leave their training duties to rejoin combat units. Many frontline pilots hated teaching anyway, especially as the number of training hours dropped and the quality of students declined. Men who had been rejected for pilot training over the previous two years were now accepted.

By 1945 Japanese planes at Clark Field on Luzon were scattered far and wide in a dispersal effort. The field’s maintenance effort had collapsed. Hundreds of aircraft sat grounded with only minor problems. For example, one aircraft might be missing a carburetor, but since no one had arranged for the salvage of a good carburetor from an aircraft missing its landing gear, both aircraft were as good as shot down.

An American intelligence officer who examined Clark after its capture reported, ‘It is impossible to describe the situation as a whole beyond saying that everywhere is evidence of disorganization and general shambles.’ The Americans found 200 new aircraft engines at a village near Clark, most still in shipping crates. Ground crews had dispersed them far and wide in little dumps of three and four. They were hidden underneath houses, rice mills, shacks and public buildings. Huge numbers of parts such as carburetors, fuel pumps, generators and propellers were likewise scattered in fields and under houses, and also buried. Mechanics buried tools in no discernable pattern. Initial counts of aircraft in and around Clark topped 500, many of them obviously burned out, but many seemingly ready to fly.

The Japanese had not experienced the logistical challenges that the Western powers had addressed during World War I and later relearned. Japan’s politicians, generals and admirals completely misjudged the character and the duration of the war they launched in 1941. Poor aerial logistics planning, lack of foresight, a racist contempt for their enemies, a weak, shallow, narrow industrial base and an inability to appreciate supply requirements or to learn from their failures characterized their aviation effort throughout the entire war.

This article was written by John W. Whitman and originally published in the September 2006 issue of Aviation History.

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Tags: 20th - 21st Century, Airborne Operations, Aviation History, World War II

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