MISSION SUMMARY
Mission Number 256
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Date:
9 /10 July 1945
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Target:
Shimonoseki Straits,
Niigata, and Nanao
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Participating Unit:
313th Bombardment Wing
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Number A/C Airborne:
31
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% A/C Bombing Primary:
93.55% (29 primary &
1 alternate)
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Type of Mines Used:
Mk 26-36, 1000#: and Mk 25, 2000#, with various settings.
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Tons of Mines Planted:
193 tons primary & 7 tons alternate
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Time Over Primary:
100102K - 100317K
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Altitude of Attack:
6900 - 8800 feet
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Weather Over Target:
0/10 - 9/10
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Total A/C Lost:
1
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Resume of Mission:
It was believed that Fishiki and Niigata harbors were closed
for approximately 4 days, and the areas mined in the straits were
unusable for 1 week. Of the
274 mines dropped, it was estimated 267 were effective.
One A/C was non-effective.
18 E/A made 4 attacks.
Flak was heavy, moderate to intense, and accurate over
Shimonoseki, and meager to inaccurate in others.
The A/C Lost was shot down by flak and E/A over the mining
field. 8
B-29’s were damaged by
flak. 9 A/C landed at
Iwo Jima.
Average Mine Load:
12,605 lbs. Average Fuel
Reserve: 580 gallons.
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