Keywords: YSH-2E inflatable antenna NAN7-73.jpg A U S Navy Kaman HH-2D Seasprite BuNo 152191 anti-submarine helicopter was tested with an inflateable radome in the early 1970s U S Navy Naval Aviation News July 1973 http //www history navy mil/nan/backissues/1970s/1973/Jul73 pdf 1973 USN PD-USGov-Military-Navy Kaman YSH-2E Seasprite 1973 in aviation |