Image:EFLH1200-450.jpg
The '''E-flite™ Blade™ CX''' is an entry level, Ready-to-fly electric micro R/C helicopter designed and distributed by E-flite, a division of Horizon Hobby of Champaign,_Illinois, USA.
This model was introduced in late 2005 as an easier-to-fly alternative to E-flite's Blade CP, also introduced in 2005. Unlike its predecesor, intended for experienced pilots with its standard two-blade main rotor and gyro-controlled tail rotor, the CX is fitted with a Coaxial counter-rotating main head. This system, driven by two 180-series motors, cancels the rotational Torque that makes a standard helicopter difficult to learn to hover, especially a helicopter the size of the CP. The CX, by comparison, is stable enough so that even first time R/C users quickly learn to hover, some learning almost immediately. Rudder turns are accomplished via the slowing of one blade or the other without affecting stability. This stability, along with a "street" price of under US$200, made the Blade CX one of the most popular hobby-grade radio controlled holiday gift of the 2005 holiday season. There is a tradeoff in control responsiveness, but one can theoretically step up to the CP or other standard micro helicopter once the basics of helicopter flight are mastered with the CX.
A sophisticated four-in-one onboard control unit similar to the one found on the CP mixes collective, pitch, Gyro and motor control. Like the CP, each E-flite Blade CX is individually test-flown at the factory prior to shipping. A Lithium_polymer battery with DC charger is standard as is an instructional DVD. The only other requirement is eight "AA" batteries for the transmitter.
Options include a police helicopter Fuselage and training skids.
==Specifications==
*'''Rotor span''': 13.6"/345 mm
*'''Weight''': 8 oz/227 g with battery
*'''Length''': 15.75"/400 mm
*'''Height''': 7.17"/182 mm
*'''Included radio system''': Four-channel 72 MHz FM
*'''Servos''': E-flite S75 microservos
*'''Main drive motors''': Dual 180-series motors
*'''Standard battery''': 7.4 V, 800 mAh 2 s lithium polymer
*'''Onboard control electronics''': E-flite 4-in-1 control unit
*'''Flight duration''': 10-15 minutes per charge
*'''List/street prices''': US$249.99/189.99
*'''Catalog number''': EFLH1200
==External link and reference==
*Horizon Hobby direct sales page for the Blade CX with links to videos of the model in flight
Category:Radio_controlled_aircraft
Category:Unmanned_vehicles