Army Air Forces Statistical Digest,
World War II
Table 182 -- Flying Time of Airplanes with Units of Twentieth Air Force, By Type of Airplane: May 1944 to May 1945
| Year and Month | All Types | Very Heavy Bomber | Fighter | |||||
| XX Bomber Command | XXI Bomber Command | |||||||
| Total | Combat | Total | Combat | Total | Combat | Total | Combat | |
| Grand Total | 621,975 | 479,113 | 94,360 | 36,171 | 486,376 | 408,288 | 41,239 | 34,654 |
| Annually | ||||||||
| 1944 (May-Dec) | 75,307 | 29,569 | 62,921 | 18,979 | 12,386 | 10,590 | - | - |
| 1945 (Jan-Aug) |
546,668 | 449,544 | 31,439 | 17,192 | 473,990 | 397,698 | 41,239 | 34,654 |
| Monthly | ||||||||
| 1944 | ||||||||
| May | 4,485 | - | 4,485 | - | - | - | - | - |
| Jun | 5,145 | 1,832 | 4,145 | 1,832 | - | - | - | - |
| Jul | 7,092 | 1,102 | 7,092 | 1,102 | - | - | - | - |
| Aug | 7,349 | 2,377 | 7,349 | 2,377 | - | - | - | - |
| Sep | 9,077 | 2,371 | 9,077 | 2,371 | - | - | - | - |
| Oct | 10,303 | 3,199 | 10,86 | 3,199 | 217 | - | - | - |
| Nov | 13,898 | 7,618 | 10,043 | 4,623 | 3,855 | 2,995 | - | - |
| Dec | 17,958 | 11,070 | 9,644 | 3,475 | 8,314 | 7,595 | - | - |
| 1945 | ||||||||
| Jan | 24,712 | 13,353 | 12,070 | 5,664 | 12,642 | 7,689 | - | - |
| Feb | 28,757 | 18,977 | 10,785 | 6,760 | 17,972 | 12,217 | - | - |
| Mar | 54,011 | 44,852 | 8,584 | 4,768 | 45,427 | 40,084 | - | - |
| Apr | 56,960 | 50,663 | - | - | 56,960 | 50,663 | - | - |
| May | 74,272 | 66,413 | - | - | 74,272 | 66,413 | - | - |
| Jun | 89,240 | 80,174 | - | - | 89,240 | 80,174 | - | - |
| Jul | 124,317 | 108,191 | - | - | 105,449 | 91,579 | 18,868 | 16,612 |
| Aug | 94,399 | 66,921 | - | - | 72,028 | 48,879 | 22,371 | 18,042 |
