Radio Controlled Coaxial helicopters

Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} Coaxialradio controlled model helicopters are an ideal introduction to rc helicopterflying gue to their stability and slow responsiveness. This makes them fareasier to master than the traditional single rotor / tail rotor counterparts.With a bit of practice they are stable enough to be flow indoors in a confinedspace so you can practice anywhere. A conventional rc helicopter has a single rotor and a tail rotor to control yawie the direction in which the helicopter is pointing. A coaxial helicopterhowever has two rotors on top of the helicopter and no tail rotor. These rotorsrotate in opposite directions and the torque generated by each rotor cancelsthe other one. This results in extremely stable hovering. Yaw is controlled byadjusting the speed of one of the two rotors. Coaxial helicopters are availablein 2, 3 and 4 channel versions. We would recommend a 4 channel coaxialhelicopter as this provides for controls pitch, bank, throttle, and yaw. Coaxial helicopters have a number of advantages and disadvantages. Advantages include - easier setup due to them requiring no gyro. - Cheaper since less electronics are required. - Very stable in the hover making them ideal for orientation practice. - Most are available ready to fly requiring no building or setup. - Generally they are very tough and can survive crashes well. Disadvantages - the motors need to be evenly matched so the torque generated by each rotor issimilar. - Very slow and unresponsive. Getting them to move from the hover can requirequite violent stick movements! - at extreme cyclic throws the rotors can clash causing a crash Generally coaxial radio controlled helicopters are small in size ranging from 3inch rotor spans up to about 15 inch. Whilst some coaxial helicopters can beconsidered nothing more than toys some of the better 4 channel models fromcompanies such as ESky and E-Flite are an excellent introduction to the worldof radio controlled model helicopter flying. Submitted BY: Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} http://www.in-miniature.co.uk/helicopters.asp/

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