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R50338 US Army Dash 8 done over New Jersey heading back to Manassas, VA- had a holding pattern right on the Delaware/New Jersey border over Delaware river
ATOM45 USAF Constant Phoenix nw from its earlier run out into the Atlantic-returning to Offutt AFB
The aircraft is a modified C-135B or EC-135C platform. The Constant Phoenix's modifications are primarily related to its on-board atmospheric collection suite, which allows the mission crew to detect radioactive "clouds" in real time. The aircraft is equipped with external flow-through devices to collect particulates on filter paper and a compressor system for whole air samples collected in holding spheres.
The cockpit crew is from the 45th Reconnaissance Squadron at Offutt Air Force Base, Neb., and special equipment operators are assigned to Det. 1, Air Force Technical Applications Center at Offutt AFB.