Helicopter Bell OH-13H Sioux Serial 2493 Register 3B-HO used by Österreichische Luftstreitkräfte (Austrian Air Force). Aircraft history and location Aircraft History 3B-HO Österreichische Luftstreitkräfte OL wfu 1976 1988 A Vienna Technical Museum Exhibit on display at Technical Museum for Arts and Crafts, by Send Updates Use APP to upload photo @ (optional) When Now? / / Send
