509th Composite Group

509th Composite Group (HM1SKK)

Location: Riverside, OH 45431 Montgomery County
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Country: United States of America
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N 39° 46.763', W 84° 6.751'

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Inscription

First Atomic Bombardment

— Silverplate B-29 · 20th Air Force —

The 509th Composite Group operated from the island of Tinian in the western Pacific from June to November, 1945.
On 6 August 1945, a B-29 of the 393rd Bomb Squadron dropped the first atomic bomb on the Japanese city of Hiroshima. Three days later, another B-29 of the squadron dropped the second atomic bomb on the city of Nagasaki.
These missions were instrumental in Japan's decision to surrender, thus ending World War II.
Dedicated 8 August 1977
Details
HM NumberHM1SKK
Year Placed1977
Marker ConditionNo reports yet
Date Added Sunday, June 12th, 2016 at 9:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)16S E 747285 N 4407260
Decimal Degrees39.77938333, -84.11251667
Degrees and Decimal MinutesN 39° 46.763', W 84° 6.751'
Degrees, Minutes and Seconds39° 46' 45.78" N, 84° 6' 45.06" W
Driving DirectionsGoogle Maps
Area Code(s)937
Closest Postal AddressAt or near Spaatz Cir, Riverside OH 45431, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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