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Terms & conditions

The 3Dplus is the next generation high performance 50 size heli. Now 300 grams lighter than the Knight 3D, which was already one of the lightest in its class, the 3Dplus has a better power to weight ratio than any other helicopter on the market! This heli flies like no other. With the all new rotor head the 3Dplus can handle anything you throw at it with the usual Compass Model crisp and presice feeling.


Length: 1270mm
Rotor Diameter: 1360mm
Gear Ratio: 8.66:1:4.8
Weight: 3.15kg
Engine Size: 50 to 57
Rotor Blades: 600 to 620mm
Kit contains:
3D+ CF

3Dplus Performance Rotorhead made with
High Quality Composite Components with
an 8mm Spindle to withstand
high impact 3D flight.
In General:
1. The Ball Links on the 3D Plus need to be resized. These Ball Links will NOT break in over time. they will stay tight and will cause unwanted interactions.

2. It is very important to make sure the clunk line does not get hung up inside to fuel tank. Remove the fuel tank from the helicopter and rotate the tank. Be sure the clunk can get close to all corners of the tank.

3. For tail servos like the 8900G, you have to file the mount a little bit wider to fit the servo.

4. The screws used in some places in Compass Model Helicopters should not be re-used over to many times as they are “Torque to yield”, they will stretch over time which can cause them to fail, We recommend replacing the screws after tightening them down max 3-4 times. Feathering shaft screws (Part no. 79-0510) are recommended to be replaced after using it one time as it is a critical part in the main rotor.

5. Main Rotor Dampeners O-Rings (Part no. 97-0920) should be replaced periodically; failure to do so could cause loosing dampening performance.

6. To prevent the landing gear from breaking on hard landings we suggest boiling them. Bring a pot of water to a boil, and place the landing gear struts in the boiling water for 2-3 minutes.

In step 1:
Some pilots may want to mount the gyro under the canopy on the front electronics tray. To do so, mount the electronics tray upside down, by doing so will allow the gyro to be mounted perpendicular to the main shaft and also allow more clearance for the receiver battery.

In step 2:
To get best engine performance we recommend changing the engine dampeners (Part no. 02-0335) periodically. Due to the high vibration the engine produces, this will cause the dampening material to break down over time causing the engine to not perform as expected.

In step 3:
It is very important to resize the Ball Links for smooth travel, especially on the tail; because issues like tail wag, sluggish tail, or inconsistent Piro-rate will occur.

In step 4:
It is vital not to over tighten the Main Gear Bolt, or it can cause the Autorotation Gear to slightly warp. This can cause a premature Belt failure, or reduce the lifetime of the Belt.

In step 5:
Leave About 0.1mm space between the Flybar Collar and the Flybar Holder, this avoids the Flybar to snap when flying.

In step 7:
For the phasing ring, put the 2 set screws in diagonally, not all on one side, so it doesn’t bind the washout.