Keywords: HUP-2 HTU-1 200hrs NAN12-56.jpg A Piasecki HUP-2 Retriever BuNo 128489 of U S Navy squadron HTU-1 in 1956 The helicopter just flew for 200 hours U S Navy Naval Aviation News December 1956 http //www history navy mil/nan/backissues/1950s/1956/dec56 pdf 1956 USN PD-USGov-Military-Navy Piasecki HUP Retriever |