The odd thing about this helicopter is that even though it retains the USAF or US Army Vietnam era camouflage scheme, it lacks national markings, which most surplus aircraft which retain military paint schemes do. Additionally, I could not see a registration number on it anywhere. That may be because I took this photograph from a distance, with an iPhone, and it could be painted in black on the dark green aft of the helicopter. It obviously should have this painted on it.
When I happened to arrive at the airport on the day this photo was taken, a crew was standing by it as the refueling truck was getting ready, and they were having their photograph taken. I thought they were a military crew, but I wasn't paying much attention. UH-1s are no longer in common US use, but the UH-1N is still used by the USAF in connection with nuclear missiles and missile silos, and that variant does in fact often have the nose mount fitting, although it should have USAF markings and this old camouflage scheme would be a surprise.
