UH-1 Huey Simulation Helicopter User Manual - E190S

Introduction

This model airplane is a 1:34 scale downsized version of the UH-1 US Coast Guard rescue helicopter, featuring highly realistic external details. It is equipped with two detachable side doors, shock-absorbing landing gear, and cool lighting. Additionally, it comes with two-way transmission for remote control communication and a smart flight control system, making it perfect for beginners. It also serves as an excellent static model for exhibitions.

It uses a built-in GPS / geomagnetic smart flight control system, direct drive motor, smart battery, multi-functional GPS flight self-stabilization mode, optical flow stabilization mode, and manual height setting mode. In addition, it also has a flight fence, one-button return, smart low power return, failsafe return, one-button landing, and other safe flight modes.

Please read the detailed instructions in this manual carefully before operating your helicopter, as this will help you understand the product. Incorrect operation can cause damage to the model aircraft, wasting your valuable time and money.

Accessories List

Notes and Warnings

Note: All descriptions, warranties, and other ancillary documents are subject to change at the sole discretion of our company. To obtain the latest product information, contact us.

Warning: Please read the entire user manual to familiarize yourself with the functions of the product before operation. Any failure to operate the product properly may result in damage to the product, loss of personal property, and cause serious injury. This is a complex product to operate for hobby purposes. It must be operated with care and common sense and requires some basic mechanical ability. Failure to operate this product in a safe manner may result in personal injury as well as damage to the product or other property. The product is not intended for use by children without direct adult supervision. This manual contains safety, operating, and maintenance instructions. Before assembly or use, please read and follow all instructions and warnings in the operator's manual to operate properly and avoid damage or serious injury.

Safety Precautions and Warnings:

• Age advice: not suitable for children under 14 years old. It is not a toy.
• Always operate your model in an open space away from all kinds of vehicles, traffic and people.
• Follow operating notices, warnings, and any supportable devices (chargers, batteries, etc).
• Keep the product away from any chemicals. Keep children away from any small parts and electrical equipment.
• Always keep away from water. Special attention is paid to the fact that this product is not waterproof and it will be damaged by moisture.
• Do not put any part of the model in your mouth as this may result in serious injury or even death.
• Do not operate your model with low voltage launcher batteries.

Helicopter Parameters

Warnings and Battery Usage Guide

[Caution] Always use a charger compatible with batteries.

[Caution] Charge batteries away from flammable materials.

[Warning] Never leave charging batteries unattended.

[Warning] Never charge damaged batteries.

[Warning] Never alter batteries.

[Warning] Never touch or use hot batteries.

For safety purposes, please use the provided standard charger.

[Warning] It is strongly recommended to use the included charger for battery charging.

[Caution] Lithium batteries may be damaged and may not charge properly when the voltage drops below 7.4V.

Battery Charging:

1. Connect the USB cable to a computer USB port or a power adapter.
2. Connect the USB's other end (Type-C plug for Android) to the battery for charging.
3. During charging, the current battery level indicator will flash, and all four lights will remain solid when charging is complete.
4. Disconnect the charging connection after charging is complete.

Note: It is recommended to use a 5V 2A adapter for charging, as it will enable faster charging.

Battery Functions and Indicators:

Components: Camera Mount, Battery Mounting Clip, 5V Power Socket, Power Switch, Battery Level Indicator, Battery Connector.

Battery Level Indicator Status:

• 4 lights on: 100%
• 3 lights on: 75%
• 2 lights on: 50%
• 1 light on: 25%
• 4 lights flashing: Low Battery

[Warning] After use, please turn off the battery as prolonged power-on time may shorten the battery lifespan. After flying, remove the battery from the cabin to prevent damage due to over-discharge.

Remote Control Functions

The remote control features Intelligent mode, Manual Mode, Figure 8 Flight, Round Flight, Accelerator/Direction joysticks, Power ON/OFF, MODE1/2 Switching, and Throttle High/Low controls.

Display Contents: Aircraft Battery, GPS quantity, Flight Modes, GPS Quality Icon, Return, Remote Control Battery, Flight Direction, Remote Control Mode.

Expert Inverted Mode:

In GPS mode, when the aircraft flies to a height of more than 8 meters, press and hold the MODE button for 1 second until two beeps sound to enter the one-key inverted flight mode. Quickly move the aileron joystick left or right and return it to the center immediately. The aircraft will automatically perform a 180-degree roll and hover according to the joystick command. At this time, operating the helicopter in the inverted flight state is the same as in the normal flight state: pushing the throttle joystick upward makes the aircraft climb, and pushing the elevator joystick forward moves the aircraft in the direction of the nose.

Press the one-key inverted flight button again and quickly move the aileron joystick. The aircraft will roll from the inverted flight state back to the normal flight state, resuming normal flight.

Right Accelerator: Controls Forward/Backward movement and Left/Right movement.

Left Accelerator: Controls Forward/Backward movement and Left/Right movement.

Description of Switch Functions:

• SWB-6: Switch up for auto-stabilization attitude mode. Switch down for completely manual mode, shielding lower visual positioning and GPS mode. Suitable for poor GPS signal, geomagnetic data interference, serious yaw, or emergency landing. Switch up is motor unlock; normal flight should keep the switch on top.
• SWC-7: Switch down is to lock the aircraft, stopping all movements (motors and servos). Use carefully; sudden stop in flight causes a crash unless a serious fault is detected.
• SWD-8: Switch up is the lower visual positioning mode (max flight height 6 meters), suitable for GPS-poor scenarios. Middle position is GPS positioning mode (accurate positioning, stable flight, intelligent flight). Switch down is return, initiating instant automatic return and landing.

Aircraft and Remote Control to Frequency Matching

If you purchased a complete set, they are pre-matched. For other cases, follow these steps:

1. Press and hold the camera button and the power button of the remote control; it will continuously beep.
2. Power up the aircraft and turn on the smart battery; the aircraft indicator light will flash fast yellow.
3. Keep the aircraft stationary within 0.5m of the remote control.
4. The remote control will beep twice, and the display will show the aircraft pattern and RX power, indicating successful frequency matching. The indicator light will restore.

If not successful, repeat the steps.

Description of the Aircraft Status Indicators

• Fast flashing yellow light: Self-test of the aircraft.
• Long red light: Under visual positioning mode.
• Slow flashing green light: GPS star search and positioning.
• Long green light: GPS positioning mode.
• Long yellow light: Manual attitude mode.
• Slow flashing red light: Level 1 low power.
• Fast flashing red light: Level 2 low power.
• Flashing alternately between red and yellow lights: Ground magnetic data error, need to recalibrate.

Note: After frequency matching, indicator lights display according to the remote control switch position.

Gyroscope Calibration

After successful frequency matching, push the left joystick of the remote control (MODE2) to the uppermost corner and the lowermost corner of the right joystick for 2-3 seconds. When the aircraft indicator's yellow light flashes fast, it will turn solid green, indicating calibration is complete. Ensure the aircraft is on a level surface for calibration.

Recalibration is only necessary if initialization cannot be exited or if yaw exists in manual attitude mode.

Compass Calibration

Place the aircraft on the ground. For MODE2, position the left joystick in the lower left corner and the right joystick in the upper right corner. The indicator yellow light will flash fast, indicating compass calibration is in progress. The aircraft rotates horizontally (first step), then stands upright and rotates (second step) until the yellow light changes to fast flashing green, then solid green, completing calibration.

Recalibrate for safer and more stable flight, or when changing flying sites. Keep the aircraft more than 1 meter from the ground and away from strong magnetic fields or large metal objects.

First Flight

If you are not experienced with the E190S, take time to learn the controls before your first flight.

Basic Flight Controls:

• Throttle Up: Increase altitude.
• Throttle Down: Descend.
• Left Rudder: Turn Left.
• Right Rudder: Turn Right.
• Pitch Up: Move Forward.
• Pitch Down: Move Backward.
• Aileron Left: Roll Left.
• Aileron Right: Roll Right.

Flight Modes

The E190S supports GPS stabilization mode, optical flow stabilization mode, and manual attitude mode, switchable via the remote control.

• GPS Stabilization Mode: Uses GPS + geomagnetic module for precise hovering, stable flight, accurate positioning, max tilt 25°, max speed 5 m/s.
• Lower Visual (Optical Flow) Positioning Mode: For environments without GPS signal or poor GPS signal. Use on flat ground. Limited flight height 6m. Speed 1m/s (L gear), 2m/s (H gear).
• Manual Attitude Mode: (SWB-6 switch bottom position) Shields GPS and lower vision modes. Enhances control ability, suitable for GPS/magnetic data confusion or uncontrolled yaw situations for emergency landing.

Notes on the Lower Visual Model:

The visual system is a supporting role and cannot replace human judgment. Users must remain aware of surroundings and maintain control. The system has limitations:

• Limited takeoff height is 6 meters; avoid takeoff on building roofs.
• Unable to recognize surfaces without textural features, or in low/excessive light.
• Does not work on: pure color surfaces, surfaces with strong reflections, water or transparent objects, moving objects, scenes with rapid lighting changes, extremely dark/bright surfaces, or materials with strong infrared absorption/reflection.

Auto Return

The E190S features automatic homing. The primary mode is intelligent low power homing, triggered by low battery or loss of remote control signal. The aircraft records the homing point and returns to it. A homing icon and sound prompts appear on the remote control.

Return Point

After powering on, wait for the GPS icon and satellite count to appear on the remote control display. The aircraft records the current takeoff coordinates as the return landing point. If GPS quality is poor (insufficient satellites or no GPS sign), takeoff may be risky. In lower vision or manual mode, the return point is where satellite mass is reached during flight, which carries risk.

Smart Return

Initiated by the user via the SWD-8 switch. The aircraft returns to the recorded point.

Straight Return

When user-initiated, the aircraft brakes, turns towards the return point, adjusts altitude (rises if necessary), and then lands. The process involves returning to the point, then landing.

Smart Low Power Return

The aircraft intelligently determines if current power is sufficient for return. If power is low (Level 1 low power detected), it returns to 25 meters distance and 20 meters altitude from takeoff, then hovers. Users can control it within this range until Level 2 low power is detected, at which point it lands at the return point and powers off. The remote control provides alerts, and this return cannot be cancelled.

Failsafe Return

If the connection with the remote control is lost for more than 3 seconds, the aircraft will return. If the connection is re-established, the aircraft will terminate the return flight and hover, awaiting commands.

One-button Landing

When activated, the aircraft lands in place without returning to the takeoff point. The remote control can be used during landing to adjust or cancel the command.

Round Flight

Toggle the SWA-5 reset switch down to record coordinates and fly a horizontal round flight centered on those coordinates.

Figure 8 Flight

In GPS mode, toggle the SWA-5 reset switch upward to record coordinates and fly an up-and-down Figure 8 flight pattern. Toggle the switch again to deactivate.

Flight Restriction

For safety, the E190S aircraft is limited to a flight altitude of 120 meters and an electronic fence with a flight distance of 350 meters.

Propeller Pitch Setting

When changing the rudder or other major accessories, propeller pitch may need adjustment for flight stability. Follow these steps:

1. Ensure the remote control is frequency-matched to the aircraft.
2. Toggle the SWC-7 switch to the bottom position to lock the aircraft.
3. Toggle the SWA-5 switch down 8 times continuously to enter propeller pitch setting mode. The remote control display will show only the aircraft and channel pattern.
4. Long press the camera button; servos will enter servo homing after a beep.
5. Adjust the corresponding servo via the joystick until the aircraft's cross plate is horizontal and the propeller angle is 0 degrees.
6. Toggle the remote control SWC-7 switch to the top to exit propeller pitch setting.

Note: This procedure requires guidance from an experienced person.

Common Troubleshooting