Date: 19/20 July 1945
Target: Kobe-Osaka, Oyama, Yanohama, Niigata, Miyazu, Mai- zuru,
Gensan-Konan, Tsuruga, Obama, and Nezugasaki
Participating Units: 313th BW
Number A/C Airborne: 31
% A/C Bombing Primary: 87.09% (27 Primary and 2 Alternate)
Type of Mines and Settings: MK26-36, 1000# and MK25, 2000# mines with
various settings.
Tons of Mines Dropped: 184 tons
Time Over Primary: 200003K - 200247K
Altitude of Attack: 7,100 - 8,400
Weather Over Target: 0/10 - 10/10
Total A/C Lost: 1
Resume of Mission: It was estimated that of the 228 mines laid, 226
would be effective. Only 2 A/C dropped their mines visually. One A/C was
non-effective. Seven E/A sighted and made no attacks. The A/C lost was
missing to unknown reasons after leaving the target. One RCM A/C was
A/B. Eleven A/C landed at Iwo Jima. Average mine load: 13,344 lbs. Ave-
rage fuel reserve: 852 gallons.