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- Tandem_rotors abstract "Tandem rotor helicopters have two large horizontal rotor assemblies mounted one in front of the other. Currently this configuration is mainly used for large cargo helicopters.Single rotor helicopters need a mechanism to neutralize the yawing movement produced by the single large rotor. This is commonly accomplished by a tail rotor, coaxial rotors, and recently the NOTAR systems. Tandem rotor helicopters, however, use counter-rotating rotors, with each canceling out the other's torque. Therefore all of the power from the engines can be used for lift (force), whereas a single rotor helicopter uses some of the engine power to counter the torque. An alternative is to mount two rotors in a coaxial configuration.Advantages of the tandem-rotor system are a larger center of gravity range and good longitudinal stability. Disadvantages of the tandem-rotor system are a complex transmission (mechanics), and the need for two large rotors.The two rotors are linked by a transmission that ensures the rotors are synchronized and do not hit each other, even during an engine failure.Tandem rotor designs achieve yaw by applying opposite left and right cyclic to each rotor, effectively pulling both ends of the helicopter in opposite directions. To achieve pitch, opposite collective is applied to each rotor; decreasing the lift produced at one end, while increasing lift at the opposite end, effectively tilting the helicopter forward or back.Tandem rotor aerodynamics is a complex subject. Tandem rotor helicopters have the advantage of being able to hold more weight with shorter blades, since there are two sets. However, the rear rotor works in the aerodynamic shadow of the front rotor, which reduces its efficiency. This loss can be minimized by increasing the distance between the two rotor hubs, and by elevating one hub over the other. Tandem rotor helicopters tend to have a lower disk loading than single rotor helicopters.Tandem rotor helicopters typically require less power to hover and achieve low speed flight as compared to single rotor helicopters. Both configurations typically require the same power to achieve high speed flight.".
- Tandem_rotors thumbnail USMC_CH-46.jpg?width=300.
- Tandem_rotors wikiPageID "1599744".
- Tandem_rotors wikiPageLength "4393".
- Tandem_rotors wikiPageOutDegree "51".
- Tandem_rotors wikiPageRevisionID "704443403".
- Tandem_rotors wikiPageWikiLink Aircraft_principal_axes.
- Tandem_rotors wikiPageWikiLink Bell_HSL.
- Tandem_rotors wikiPageWikiLink Boeing_CH-47_Chinook.
- Tandem_rotors wikiPageWikiLink Boeing_Model_360.
- Tandem_rotors wikiPageWikiLink Boeing_Vertol_CH-46_Sea_Knight.
- Tandem_rotors wikiPageWikiLink Boeing_Vertol_XCH-62.
- Tandem_rotors wikiPageWikiLink Bristol_Belvedere.
- Tandem_rotors wikiPageWikiLink Category:Helicopter_components.
- Tandem_rotors wikiPageWikiLink Category:Tandem_rotor_helicopters.
- Tandem_rotors wikiPageWikiLink Center_of_gravity_of_an_aircraft.
- Tandem_rotors wikiPageWikiLink Chu_CJC-3.
- Tandem_rotors wikiPageWikiLink Coaxial_rotors.
- Tandem_rotors wikiPageWikiLink Disk_loading.
- Tandem_rotors wikiPageWikiLink Filper_Beta_200.
- Tandem_rotors wikiPageWikiLink Filper_Beta_400.
- Tandem_rotors wikiPageWikiLink Flight_dynamics_(fixed-wing_aircraft).
- Tandem_rotors wikiPageWikiLink Helicopter.
- Tandem_rotors wikiPageWikiLink Helicopter_flight_controls.
- Tandem_rotors wikiPageWikiLink Helicopter_rotor.
- Tandem_rotors wikiPageWikiLink Horizontal_plane.
- Tandem_rotors wikiPageWikiLink Intermeshing_rotors.
- Tandem_rotors wikiPageWikiLink Lift_(force).
- Tandem_rotors wikiPageWikiLink Longitudinal_static_stability.
- Tandem_rotors wikiPageWikiLink McCulloch_MC-4.
- Tandem_rotors wikiPageWikiLink NOTAR.
- Tandem_rotors wikiPageWikiLink Piasecki_H-16_Transporter.
- Tandem_rotors wikiPageWikiLink Piasecki_H-21.
- Tandem_rotors wikiPageWikiLink Piasecki_HRP_Rescuer.
- Tandem_rotors wikiPageWikiLink Piasecki_HUP_Retriever.
- Tandem_rotors wikiPageWikiLink Rotorcraft.
- Tandem_rotors wikiPageWikiLink Tail_rotor.
- Tandem_rotors wikiPageWikiLink Tiltrotor.
- Tandem_rotors wikiPageWikiLink Torque.
- Tandem_rotors wikiPageWikiLink Transmission_(mechanics).
- Tandem_rotors wikiPageWikiLink Transverse_rotors.
- Tandem_rotors wikiPageWikiLink Yakovlev_Yak-24.
- Tandem_rotors wikiPageWikiLink File:PH-10171a.jpg.
- Tandem_rotors wikiPageWikiLink File:Piasecki_H-21B_USAF.jpg.
- Tandem_rotors wikiPageWikiLink File:Tandem_rotor.gif.
- Tandem_rotors wikiPageWikiLink File:USMC_CH-46.jpg.
- Tandem_rotors wikiPageWikiLinkText "Tandem roter".
- Tandem_rotors wikiPageWikiLinkText "Tandem rotor helicopter".
- Tandem_rotors wikiPageWikiLinkText "Tandem rotors".
- Tandem_rotors wikiPageWikiLinkText "Tandem".
- Tandem_rotors wikiPageWikiLinkText "tandem rotor".
- Tandem_rotors wikiPageWikiLinkText "tandem rotors".
- Tandem_rotors wikiPageUsesTemplate Template:Citation_needed.
- Tandem_rotors wikiPageUsesTemplate Template:Reflist.
- Tandem_rotors subject Category:Helicopter_components.
- Tandem_rotors subject Category:Tandem_rotor_helicopters.
- Tandem_rotors type Component.
- Tandem_rotors type Concept.
- Tandem_rotors comment "Tandem rotor helicopters have two large horizontal rotor assemblies mounted one in front of the other. Currently this configuration is mainly used for large cargo helicopters.Single rotor helicopters need a mechanism to neutralize the yawing movement produced by the single large rotor. This is commonly accomplished by a tail rotor, coaxial rotors, and recently the NOTAR systems. Tandem rotor helicopters, however, use counter-rotating rotors, with each canceling out the other's torque.".
- Tandem_rotors label "Tandem rotors".
- Tandem_rotors sameAs Q1243255.
- Tandem_rotors sameAs دوارات_مترادفة.
- Tandem_rotors sameAs Rotors_en_tàndem.
- Tandem_rotors sameAs Tandem-Konfiguration.
- Tandem_rotors sameAs Rotores_en_tándem.
- Tandem_rotors sameAs Rotor_tandem.
- Tandem_rotors sameAs タンデムローター.
- Tandem_rotors sameAs Układ_Piaseckiego.
- Tandem_rotors sameAs m.05fmk1.
- Tandem_rotors sameAs Tandem_rotorjev.
- Tandem_rotors sameAs Cánh_quạt_nâng_trước-sau.
- Tandem_rotors sameAs Q1243255.
- Tandem_rotors wasDerivedFrom Tandem_rotors?oldid=704443403.
- Tandem_rotors depiction USMC_CH-46.jpg.
- Tandem_rotors isPrimaryTopicOf Tandem_rotors.