1. Introduction
Thank you for purchasing the Revell Control Series RC Helicopter HIC 801. This compact 3-channel remote-controlled helicopter features a built-in gyroscope for enhanced stability and control, making it suitable for indoor flight. This manual provides essential information for safe operation, setup, maintenance, and troubleshooting.

Image 1.1: The Revell Control Series RC Helicopter HIC 801, its remote control, and product packaging. The helicopter is black and yellow with "MOSQUITO" branding.
2. Safety Information
WARNING: Not suitable for children under 3 years due to small parts. Adult supervision is required at all times during operation.
- Always operate the helicopter in a safe, open area, away from people, pets, and obstacles.
- Do not fly near heat sources, water, or electrical outlets.
- Keep fingers, hair, and loose clothing away from the rotating blades.
- Do not touch the motor or battery immediately after use, as they may be hot.
- Only use the provided charging cable for the helicopter battery.
- Do not attempt to modify or disassemble the helicopter or remote control.
- Remove batteries from the remote control if not used for an extended period.
3. Package Contents
Please check the package contents to ensure all items are present:
- 1 x RC Helicopter (HIC 801)
- 1 x Remote Control (Fernbedienung)
- 1 x Rechargeable Battery (integrated in helicopter)
- 1 x USB Charging Cable
- Spare Parts (e.g., spare rotor blades)

Image 3.1: The RC Helicopter and its remote control, showing the main components included in the package.
4. Components Identification
4.1. Helicopter Components

Image 4.1: Detailed view of the helicopter, showing the main rotor, tail rotor, and landing gear.
- Main Rotor Blades: Provide lift and forward/backward movement.
- Tail Rotor: Controls yaw (rotation around vertical axis).
- Landing Gear: Provides stable landing and protects the helicopter.
- Body/Canopy: Houses the internal electronics and battery.
- Power Switch: Located on the helicopter body.
- Charging Port: For connecting the USB charging cable.
4.2. Remote Control Components

Image 4.2: Detailed view of the remote control, indicating the various control sticks and buttons.
- Left Joystick (Throttle/Yaw): Controls altitude (up/down) and rotation (left/right).
- Right Joystick (Forward/Backward/Side-to-Side): Controls forward, backward, and potentially side-to-side movement (depending on 3-channel vs 4-channel, this is 3-channel so likely no side-to-side).
- Power Switch: Turns the remote control ON/OFF.
- Trim Buttons: Used to fine-tune the helicopter's stability and prevent unwanted drifting.
- Power Indicator LED: Shows the remote control's power status.
- Battery Compartment: Located on the back of the remote control.
5. Setup
5.1. Remote Control Battery Installation
The remote control requires batteries (not included). Refer to the specifications for battery type (typically AA or AAA).
- Open the battery compartment cover on the back of the remote control.
- Insert the required batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
5.2. Helicopter Charging
The helicopter has a built-in rechargeable battery. Charge it fully before first use.
- Ensure the helicopter's power switch is in the "OFF" position.
- Connect the small end of the USB charging cable to the helicopter's charging port.
- Connect the USB end of the cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light on the USB cable will typically illuminate during charging and turn off or change color when fully charged.
- Charging time may vary, usually 30-60 minutes for a full charge. Do not overcharge.
6. Operating Instructions
6.1. Pairing the Helicopter and Remote Control
- Ensure both the helicopter and remote control are fully charged/have fresh batteries.
- Place the helicopter on a flat, level surface.
- Turn on the helicopter's power switch. The helicopter's LED lights will likely flash.
- Turn on the remote control's power switch. The remote's indicator light will flash.
- Move the left joystick (throttle) all the way up, then all the way down. This typically initiates the pairing process.
- Once paired, the LED lights on both the helicopter and remote control should become solid.
6.2. Basic Flight Controls (3-Channel)
- Left Joystick (Throttle):
- Push up: Increase throttle, helicopter ascends.
- Pull down: Decrease throttle, helicopter descends.
- Left Joystick (Yaw):
- Push left: Helicopter rotates counter-clockwise.
- Push right: Helicopter rotates clockwise.
- Right Joystick (Forward/Backward):
- Push up: Helicopter flies forward.
- Pull down: Helicopter flies backward.
- Trim Buttons: If the helicopter drifts without input, use the trim buttons to correct its flight path. For example, if it drifts forward, press the backward trim button until it hovers steadily.
6.3. Flight Tips
- Start with gentle movements. Small inputs on the joysticks are often sufficient.
- Practice hovering in an open space before attempting complex maneuvers.
- If the helicopter crashes, immediately cut the throttle to prevent damage to the motors and blades.
- Allow the helicopter and remote control to cool down for 10-15 minutes between flights to prolong battery and motor life.

Image 6.1: The RC Helicopter in a simulated flight environment, demonstrating its aerial capability.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the helicopter and remote control. Do not use water or chemical cleaners.
- Blade Inspection: Regularly check the main and tail rotor blades for any damage (cracks, bends). Replace damaged blades with spare parts to ensure optimal flight performance and safety.
- Storage: Store the helicopter and remote control in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: Do not leave the battery fully discharged for long periods. If storing for an extended time, charge the battery to about 50% capacity.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Helicopter does not respond to remote control. | Not paired; low battery (helicopter or remote); interference. | Re-pair the helicopter and remote. Charge helicopter battery. Replace remote control batteries. Move to an area with less interference. |
| Helicopter drifts during flight. | Needs trimming; damaged rotor blades. | Use the trim buttons on the remote control to stabilize. Inspect and replace damaged blades. |
| Short flight time. | Battery not fully charged; aging battery. | Ensure battery is fully charged before each flight. Battery life naturally decreases over time. |
| Helicopter does not lift off. | Low battery; main rotor blades obstructed or damaged. | Charge helicopter battery. Check for obstructions around blades. Ensure blades are properly attached and undamaged. |
9. Specifications
| Model Number: | 23989 |
| Product Dimensions: | 21 x 4.5 x 11 cm |
| Item Weight: | 360 g |
| Material Type(s): | Plastic fabric |
| Radio Control Number of Bands: | 3 |
| Recommended Age: | 3 years and up |
| Assembly Required: | No |
| Batteries Required: | Yes (for remote control) |
| Batteries Included: | No (for remote control) |
| Manufacturer: | REVELL |
10. Warranty and Support
For warranty information and technical support, please refer to the official Revell website or contact Revell customer service directly. Keep your proof of purchase for any warranty claims.
Manufacturer: REVELL
Website: www.revell.de/en/ (Please note: This is a general Revell website and specific product support may vary by region.)