Esky Lama V4 Review
As Lama V4 was being granted as one of the popular beginner fliers, it has great performance when flying indoor. As it is not designated for outdoor flight, so it is a little bit difficult to withstand the strong winds because of its light weight. Although Lama V4 can only be fly outdoor with a very little wind, there are some modifications to enhance its outdoor flying performance. Due to the co-axial design of Lama V4, the torque of blades are canceled out, but with the trade off of less maneuverability. It would be better to fly with certain altitude to prevent its unpredictable performance in small space.
Lama V4 enable to fly forwards and backwards in circle indoor without difficulties, also it is endurable towards crashes. With such a light weight, it is not easy to be damaged even fall from 10 feet ! Also, the flybar has a smart design which make it pop out safely during crash.
Aggressive changes in direction may leads to blade crash, which the tilting lower blades hit with the upper blades. But as you know, Lama V4 is not a helicopter with high speed, so manage it gently to fly around will definitely have more fun. Whatever, it is still perfect for beginners to get familiar with the basic maneuver of helicopters.
Esky Lama V4 Mechanism
Turning the direction of Lama V4 about the vertical axis (yaw) is achieved by changing the relative speeds of the top and bottom blades/motors. However, this may alter the lift, thus changing the altitude. Fore-back motion and rolling are performed by 2 servos which tilt the swashplate.
With the 7.4V, 800 mah LiPo pack stock battery which is able to support flight time around 10 minutes. Charging time is near an hour to get fully charged. The balancing connector of two cell pack assure the cells capacity would be charged evenly.
The upper set of rotor blades are stabilized by a weighted flybar which counters tilting movements. The lower set of rotor blades are designed to steer the helicopter by tilting a swashplate which in turn tilts the entire rotor by changing the pitch in a complicated process called “cyclic”.
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