Don't be fooled when you look at the size of the Walkera Lama 400 EC135 box. You will find a really large co-axial helicopter neatly packed away inside the box. Walkera made double sure that this helicopter is packed securely, so I can say with great confidence that nothing inside this box will shake around during shipment. Not only was I surprised by the size of the Walkera Lama 400 EC135, but also the quality and superb finish. I have to give Walkera ten out of ten on this model. This helicopter will turn heads at any flying club or indoor flying event.

The Walkera Lama 400 EC135 comes standard with an all-metal rotor head assembly. The balancing bar housing and swash are made out of blue anodized aluminum, while the upper and lower main blade holders from non-anodized aluminum. All metal parts on the Walkera Lama 400 are CNC-machined that gives this helicopter state-of-the-art workmanship.

Four plastic main rotor blades ensures for plenty of lift, and can easily be replaced with new ones if needed. The main frame is build out of two fiber glass side plates, with aluminum and plastic support spacers that makes the main frame as solid as can be. Aluminum motor mounts and main shaft bearing blocks adds to the quality of this helicopter. I have to say that this mainframe design and layout is superb.

Two micro servos are connected via linkages to the 90º swash plate for cyclic control (elevator and aileron). The co-axial rotors are driven by two powerful 380SH brushed motors that gives the Walkera 400 EC135 plenty of power to accelerate vertical. Both brushed motors are connected to a single speed controller for throttle control that gives instant throttle response. The four-channel receiver with build in gyro is situated on a carbon fiber tray in the nose of the helicopter.

Servo extend and gyro sensitivity can be adjusted on the receiver through a small hole in the EC135 fuselage with the supplied plastic screwdriver. This way you don't need to remove the EC135 fuselage from the main frame for adjustments. Very clever Walkera. Access to the LiPo battery tray is from below the helicopter. The supplied 1500 mAh LiPo batty simply slides perfectly into position, and is secured in place with a down folding hatch that clips onto the main frame.

Sturdy plastic landing skids with square graphite and round aluminum tubing are screwed onto aluminum mounting blocks on the main frame. You really have to land or crash land very hard to break these landing skids. An aluminum tail boom is mounted onto the main frame with a metal bracket, and runs inside the scale EC135 fuselage. This tail boom design is very strong, and tail vibrations during flight are almost non-existent.

Torque is cancelled out with the counter rotating main blades, so there is no need for a tail rotor to counteract torque. Still Walkera has incorporated a small electrical motor to spin the tail rotor during flight to add scale realism to the helicopter. The tail rotor spins inside the EC135 fuselage like in the full size EC135 helicopter. The quality of the plastic EC135 scale fuselage is exceptional good, and I can't say anything negative about it. 

You need to remove the scale EC135 fuselage to replace any broken parts on this helicopter. Removing the fuselage looks complicated, and Walkera should have included a step-by-step guide in the manual for doing this. This is the only negative remark that I have on this model. The supplied LiPo charger output charge rate is 0.80A, and will take just over an hour to fully charge the 1500mAh LiPo battery. A flashing red light indicates that the LiPo battery is busy charging, and a solid green light indicates that the LiPo battery is fully charged.

The 2.4G transmitter allows the transmitter to bind to the helicopter receiver with precise code pairing and strong anti-jamming (no more worries about interference while flying). The transmitter needs eight AA batteries to operate. Batteries for the transmitter are not supplied with the Walkera Lama 400 EC135 helicopter kit, and should be bought additional.

• WK-2401 four channel transmitter
• Walkera Lama 400 EC135 helicopter
• One 11.1V 1500mAh  LiPo Battery
• Plastic screw driver for adjusting servo extend and gyro sensitivity
• LiPo battery charger
• Walkera Lama 400 EC135 manual
• Simulator Cable
 

• 8 AA batteries for the transmitter
 

No setup required. The Walkera Lama 400 EC135 flies straight out of the box.

Read the manual carefully before your first flight, and make sure that all batteries are fully charged. The default factory settings ensures for a docile flying Walkera Lama 400 EC135 straight out of the box. These settings are for beginners in mind with no prior flying experience. The gyro sensitivity and servo extend can be adjusted if needed. For faster pirouette speed with rudder application, the gyro sensitivity need to be turn less sensitive, and for faster cyclic response with elevator and aileron application, the servo extend need to be turned up (+).

The Walkera Lama 400 EC135 is truly a very good helicopter for beginners to learn with. This helicopter is so stable, it will hang dead still in midair when properly trimmed. Transition into forward flight is sluggish, but all co-axial helicopters are like that. I have turned the servo extend to its maximum for better cyclic performance which greatly improved the forward flight. The build in gyro on the receiver is very effective, and will hold its position for the whole flight.

The vertical acceleration is very good for this helicopter. Open the throttle, and the Walkera Lama 400 EC135 will start climbing fast. I used a stopwatch to record the flight time, and after 9 minutes, the motors slowly lost power. To prolong the LiPo battery lifespan, I would suggest 8 minutes flight times on a fully charged pack. Great helicopter... Great flying.... Great scale look......

I can highly recommend this helicopter to anyone. The quality is the best.... The hovering is the best.... Everything is the best...Happy Flying…

My Walkera Lama 400 EC135 flown outside in garden

Demonstrating the power of the Walkera Lama 400 EC135

Take note that this helicopter will only fly outside in no wind conditions

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