observation helicopter company
21Hughes Helicopters — Infobox Defunct Company company name = Hughes Helicopters, Inc. company fate = Acquired by McDonnell Douglas foundation = 1947 defunct = 1984 location = Culver City, CA and Mesa, AZ successor = McDonnell Douglas Helicopter SystemsHughes… …
22Cessna CH-1 — CH 1 Skyhook CH 1B designated YH 41 Role Light helicopter Manufacturer …
23Hindustan Aeronautics Limited — Infobox Company company name = Hindustan Aeronautics Limited company company type = Public (PSE) company slogan = Asia s Premier Aerospace Complex foundation = 1940 (in 1964, company took on current name), Bangalore location = flagicon|IND… …
24OH-23 Raven — Infobox Aircraft name=OH 23 Raven caption=Hiller OH 23 type=Multipurpose light helicopter manufacturer=Hiller Aircraft Corporation designer= first flight= introduced=1948 retired= status= primary user=United States Army more users= produced=… …
25Battle of Hamburger Hill — Infobox Military Conflict conflict=Battle of Hamburger Hill partof=the Vietnam War caption= date=May 10 May 20, 1969 place=coord|16|15|11|N|107|10|29|E|type:mountain|name=Ap Bia Mountain|display=inline,title Thua Thien Province, Republic of… …
26Glenn Andreotta — Glenn Urban Andreotta (October 30, 1947 – April 8, 1968) was an American helicopter crew chief in the Vietnam War noted for being one of three who intervened in the My Lai Massacre, in which at least 300 unarmed children, women and men were… …
27Seibel S-4 — Infobox Aircraft name=Seibel YH 24 caption=YH 24 in flight type=Multipurpose observation helicopter manufacturer=Seibel Helicopter Company designer= first flight=1951 status= primary user=United States Army produced= number built=2 unit cost=The… …
28Royal Danish Air Force — Flyvevåbnet Logo of Flyvevåbnet Founded 1950 10 01 Country …
29TH-55 Osage — Infobox Aircraft name = TH 55 Osage Hughes 269 caption = Hughes TH 55 Osage type=Light utility and trainer helicopter manufacturer= Hughes Helicopters designer= first flight= October 1956 introduced= retired= status= primary user= United States… …
30Bell 206 — Infobox Aircraft name=Bell 206 caption=Bell 206 JetRanger type=Multipurpose utility helicopter manufacturer=Bell Helicopter Textron designer= first flight=8 December 1962 (206)Visschedijk, Johan. [http://www.webcitation.org/5J1mlLyeb Bell 206… …
