Helicopter Mil Mi-8T Hip-C Serial 133 03 Register HS-3 used by Maavoimat (Finnish Army). Aircraft history and location Aircraft History For HS-3 see also 1954 S-55 55-757 HS-3 Maavoimat 1974-08-28c/n 133 03 / 13303 Army d/d 28aug74 ground instruction at Kouvola Vocational school Send Updates Use APP to upload photo @ (optional) When Now? / / Send