An elevated dusk view of a coastal Vietnam War-era airfield shows rows of helicopters sheltered in individual blast-wall revetments, with Quonset hut hangars and the South China Sea beyond. Bases like this supported the helicopter gunship and reconnaissance units that carried out classified cross-border missions such as Operation Tailwind, working alongside A-1 Skyraider 'Sandy' pilots who flew close air support for these operations. Project: 219485