observation helicopter

helicopter class designed for direct military observation duties

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Wikidata
military helicopter, ground observation aircraft, 
Bell YOH-4, HO3S, HOS-1, observation rotorcycle, 

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Location: KML, Cluster Map, Maps,

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  Bell YOH-4 ⓘ
  1962 helicopter prototype model by Bell Helicopter

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  HO3S ⓘ
  observation helicopter series by Sikorsky

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  HOS-1 ⓘ
  observation helicopter model by Sikorsky

Type	Subtype	Date	Description	Notes	Source
class	aircraft		Bell YOH-4	observation helicopter, experimental aircraft	Wikidata
class	aircraft		HO3S	observation helicopter, Sikorsky S-51 Dragonfly	Wikidata
class	aircraft		HOS-1	observation helicopter, Sikorsky R-6	Wikidata