==List of some tandem rotor helicopters==* HRP Rescuer (1945)* Piasecki PV-14 (1948)* HERC Jov-3 (1948)* Piasecki H-21 (1949)* McCulloch MC-4 (1951)* Chu CJC-3, Taiwanese prototype helicopter with 190HP engine (1952)* Piasecki H-25/HUP Retriever (1952)* Yakovlev Yak-24 (1952)* Bristol Belvedere (1952)* Piasecki H-16 (1953)* Bell HSL (1953)* Boeing Vertol 107-II (1958)* CH-46 Sea Knight (1960)* CH-47 Chinook (1961)* Jovair Sedan 4A (1963)* Filper Beta 200 (1966)* Filper Beta 400 (1967)* Boeing Vertol XCH-62 (1970s - not completed)* Boeing Model 234 (1981)* Boeing Model 360 (1987)==See also==* Coaxial rotors* Intermeshing rotors* Rotorcraft* Transverse rotors* Tiltrotor== References ==
== Lista de algunos helicópteros con rotores en tándem ==* HRP Rescuer (1945)* Piasecki PV-14 (1948)* HERC Jov-3 (1948)* Piasecki H-21 (1949)* McCulloch MC-4 (1951)* Piasecki H-25/HUP Retriever (1952)* Yakovlev Yak-24 (1952)* Bristol Belvedere (1952)* Piasecki H-16 (1953)* Piasecki H-21 (1953)* Bell HSL (1953)* Boeing Vertol 107-II (1958)* CH-46 Sea Knight (1960)* CH-47 Chinook (1961)* Jovair Sedan 4A (1963)* Fliper Beta 200 (1966)* Fliper Beta 400 (1967)* Boeing Vertol XCH-62 (1970s - not completed)* Boeing Model 234 (1981)* Boeing Model 360 (1987)== Véase también ==*Helicóptero*Rotor de helicóptero*Rotor de cola* Otras alternativas al rotor de cola convencional:**Fenestron**NOTAR**Rotores coaxiales**Rotores entrelazados== Referencias ==== Enlaces externos ==