Date: 1 June 1945
Target: Osaka Urban Area
Participating Units: 58th, 73rd, 313th and 314th Bombardment Wings
Number A/C Airborne: 509
% A/C Bombing Primary: 91.6% (458 primary and 16 opportunity)
Type of Bombs and Fuzes: M-17-30.7, 31.3, 31.9, 32.5, and 31 sec.
nose: M- 47 – instantaneous nose and non-delay tail: E-46-33.3, 34.4,
35.2, 35.5, and 36.3, and 36.5 sec. tail, and M-26 (T4E4) -14, 14.5,
15.1, 15.2, and 15.3 nose fuzings.
Tons of Bombs Dropped: 2788.5 Primary and 102.2 Opportunity
Time Over Primary: 1028K - 1200K
Altitude of Attack: 18,000 - 28,500 feet
Weather Over Target: 0/10 - 10/10
Total A/C Lost: 10
Resume of Mission: Approximately 3.4 square miles were destroyed by
this mission, north and northwest of the castle. Total damage to Osaka is
now 14.65 square miles or 24 percent of the built-up portion of the city.
Eighty-five E/A sighted made 221 attacks and damaged 4 B-29’s. Claims
were 16-9-4. Flak was heavy, meager to intense, and accurate to
inaccurate, accounting for 5 B-29’s. Two A/C collided at assembly, 2 were
lost due to mechanical reasons, and 1 to unknown causes. Thirty-five A/C
were non-effective. Of the 4 crews that bailed-out, all but 2 men were
rescued. Fighter escort was formed by 148 P-51’s, but a majority turned
back. Twenty-seven P-51’s and 26 fighter pilots were lost due to severe
weather conditions. Eighty-one B-29’s landed at Iwo Jima. Average Bomb
Load: 12,364 lbs. Average Fuel Reserve: 655 gallons.