O1

O1

O1 or O-1 may refer to:

Contents

Aircraft

  • O-1 Bird Dog, an observation aircraft manufactured by Cessna
  • O-1 Falcon, an observation aircraft manufactured by the Curtiss Aircraft Company
  • O-1 Airship, an Italian manufactured semi-rigid airship operated by the US Navy

Military

  • NATO Rank O-1
  • USS O-1 (SS-62), lead ship of the United States O class submarines
  • edit] Other
    • O1 star, a subclass of O-class stars
    • O-1 tool steel, a type of oil-hardening tool steel
    • O-1 visa
    • Haplogroup O1 (Y-DNA), a Y-DNA haplogroup
    • SP&S Class O-1, a steam locomotives class
    • Otoyol 1, a Turkish highway around Istanbul
    • Ö1, an Austrian radio station
    • O1 Communications, Inc., a California telecommunications company

    See also

    • 01 (disambiguation)

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