Helicopter Sikorsky HO5S-1G Serial 52-057 Register 1250 used by US Coast Guard USCG. Built 1952. Aircraft history and location Aircraft History For 1250 see also puma 1479 1250 US Coast Guard 1952-09-29Sikorsky S-52-3, c/n 52-057, ff:? acc BuAerRep (BAR) East Hartford, CT, 29Sep52 del USCG as HO5S-1G, 1250, 07Oct52. Send Updates Use APP to upload photo @ (optional) When Now? / / Send