This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
US Navy NR Fiftycaliber machinegun Mount Captain Aviation Ordnanceman Mark Hubbard awaits orders before participating in Preaim Calibration Fire PACFIRE off of the fantail aboard the Nimitzclass aircraf. en Pacific Ocean March Fiftycaliber machinegun Mount Captain Aviation Ordnanceman Mark Hubbard awaits orders before participating