The National Vigilance Park is near the NSA headquarters at Fort Meade. Intelligence gathering aircraft can be found in the park, like this Beech RU-8D Seminole, with a lot of aerials. It was built and delivered as an RL-23D.

The National Vigilance Park is near the NSA headquarters at Fort Meade. Intelligence gathering aircraft can be found in the park, with this Hercules, real serial 57-0453, posing as 60528, which was shot down over the Soviet Republic of Armenia in 1958.

The National Vigilance Park is near the NSA headquarters at Fort Meade. Intelligence gathering aircraft can be found in the park, like this EA-3B in colours of VQ-2, based at Rota, Spain.

Preserved in the National Vigilance Park beside the NSA at Fort Meade, Maryland. This aircraft is painted to represent Bu No 144850 and is dedicated specifically to "Ranger 12", which was lost on 25 January 1987. Following an operational mission in the Mediterranean, the plane crashed off the USS Nimitz's flight deck. While the crews of other EA-3B's that crashed off aircraft carrier decks had survived the ordeal, in this case, all seven aircrew were killed.

Preserved at National Vigilance Park, Fort Meade, MD. This aircraft is really 57-0453 painted to represent 56-0528 which was shot down over Armenia in 1958. The park was closed in 2017 and the aircraft moved to allow for building and road work.