MODSTER Super Cub S2 RC Airplane User Manual

Warnings and Important Information ⚠️

WARNING: Procedures, which if not properly followed, can create a possibility of physical property damage AND/OR possibility of injury.

CAUTION: Procedures, which if not properly followed, can create a possibility of physical property damage AND/OR possibility of injury.

Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property, and cause serious injury.

This is a sophisticated hobby product and NOT a toy. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not attempt to disassemble, use with incompatible components, or augment the product in any way without the approval of MODSTER.

Age Recommendation: Not for children under 14 years. This is not a toy.

Safety Precautions ?️

• Always ensure all batteries have been properly charged before using the vehicle.
• Always check all servos and their connections prior to each run.
• Never operate your vehicle near spectators, parking areas, or any other area that could result in injury to people or damage to property.
• Never operate your vehicle during adverse weather conditions. Poor visibility can cause disorientation and loss of control of your vehicle.
• Never point the transmitter antenna directly toward the vehicle. The radiation pattern from the tip of the antenna is inherently low.
• If at any time during the operation of your vehicle you observe any erratic or abnormal operation, immediately stop operation of your vehicle until the cause of the problem has been ascertained and corrected.

Battery Usage & Charging Warnings ?

CAUTION: All instructions and warnings must be followed exactly. Mishandling of Li-Po/Li-Ion/Ni-Mh batteries can result in fire, personal injury, and/or property damage.

• The battery charger included with your plane (if provided) is designed to safely balance and charge the specific Li-Po/Li-Ion/Ni-Mh battery.
• By handling, charging, or using the included battery, you assume all risks associated with Li-Po/Li-Ion/Ni-Mh batteries.
• If at any time the battery begins to balloon or swell, discontinue use immediately. If charging or discharging, you should discontinue and disconnect. Continuing to use, charge, or discharge a battery that is ballooning or swelling can result in fire.
• Always store the battery at room temperature in a dry area for best results.
• Always transport or temporarily store the battery in a temperature range of 40-120 Fahrenheit degrees (5-49 degrees Celsius). Do not store the battery or your plane in a car or in direct sunlight. If stored in a hot car, the battery can be damaged or even cause fire.
• Always charge a battery away from flammable materials.
• Always inspect the battery before charging and never charge damaged batteries.
• Always disconnect the battery after charging and allow the charger to cool before the next charge.
• Always constantly monitor the temperature of the battery pack while charging.
• ONLY USE A CHARGER SPECIALLY DESIGNED TO CHARGE SPECIFIC BATTERIES.
• Never discharge Li-Po cells below 3V under load.
• Never cover warning labels with hook or loop strips.
• Never leave charging batteries unattended.
• Never charge batteries outside recommended levels.
• Never attempt to dismantle or alter the charger.
• Never allow minors to charge battery packs.
• Never charge batteries in extremely hot or cold places (recommended between 40-120 Fahrenheit degrees / 5-49 degrees Celsius) or in direct sunlight.

Box Contents ?

• MODSTER Super Cub S2 Airplane
• Transmitter
• Battery
• Charger
• Landing Gear
• (Other accessories as per manual)

Charging Instruction ?

1. Unplug the battery from your plane.
2. Carefully plug the charger into the USB port on your computer or USB adapter.
3. Connect the battery to the charger.
4. The charging process takes about 3.5 hours. For safety reasons, never charge the battery for longer than 4 hours. While charging, the red LED indicator will be flashing. When the charging is finished, the red LED will be off.

Setup Instruction ⚙️

1. Install 4 AA batteries (not included) in the transmitter.
2. Plug the landing gear into the fuselage as shown in the diagram. (Diagram shows landing gear being inserted into slots on the underside of the fuselage).
3. Connect the battery to the receiver, then place the battery into the cabin, making sure the battery is well secured.
4. Setup is done. Make sure you read and follow all instructions in this manual before starting to fly the airplane.

Center Control Surfaces

With the transmitter turned on and the battery connected to the ESC (and installed in the battery compartment), it is now possible to check the center of all control surfaces.

Observe the rudder to ensure it is properly centered. (Diagram shows a top-down view of the tail section with the rudder aligned vertically with the fuselage).

Then observe the elevator to ensure it is properly centered. (Diagram shows a side view of the tail section with the elevator aligned horizontally with the horizontal stabilizer).

Observe the ailerons on the wings to ensure they are properly centered. (Diagram shows a view of the wingtip with the aileron in a neutral position, aligned with the trailing edge of the wing).

Push Rod Adjustment

If the rudder is angled off to the right or left, adjust the push rod by its arc-shaped section slightly, making sure the rudder is properly centered.

If the elevator is angled off to the upper or lower position, adjust the push rod by its arc-shaped section slightly, making sure the elevator is properly centered.

If the aileron is angled off to the upper or lower position, adjust the push rod by its arc-shaped section slightly, making sure the aileron is properly centered.

(Diagrams show close-ups of the push rods connecting to the control horns on the rudder, elevator, and ailerons, highlighting the adjustable arc-shaped section).

Remote Control Layout ?

The transmitter features the following controls:

• Throttle: Controls engine power.
• Rudder: Controls yaw (left/right turning of the nose).
• Elevator: Controls pitch (up/down movement of the nose).
• Aileron: Controls roll (tilting the wings left/right).
• Rudder Trimmer: Fine-tunes the neutral position of the rudder.
• Elevator Trimmer: Fine-tunes the neutral position of the elevator.
• Aileron Trimmer: Fine-tunes the neutral position of the ailerons.
• ON/OFF Switch: Powers the transmitter on or off (?/?).
• Gyro Switch: Controls the flight stabilization system.
• One-Key Aerobatics Button: Activates automatic aerobatic maneuvers.
• One-Key Return Switch: Activates the automatic return-to-home function.
• LED Indicator: Shows status information.

(Diagram shows a top view of the transmitter with labels pointing to each control).

Gyro Switch Settings

The Gyro switch has 3 levels to control flight stabilization:

• 0 - Away From You ⬅️: Manual / Gyro Off (EXPERT mode).
• 1 - Middle Position ↔️: Soft Gyro Assist (MIDD mode).
• 2 - Towards You ➡️: Strong Gyro Assist (BEGINNER mode).

CAUTION: It is strongly suggested to turn on the Gyro while flying the Super Cub S2, especially for beginners.

Binding Instruction ?

Binding is the process of programming the receiver to recognize the GUID (Globally Unique Identifier) code of a single specific transmitter. When a receiver is bound to a transmitter, the receiver will only respond to that specific transmitter.

To Rebind:

1. Keep the transmitter switched OFF, throttle joystick at the bottom position (⬇️). NOTICE: Keep Gyro switch at Middle (↔️) or Beginner (➡️) position. NOTICE: Keep the plane still in a calm environment for Gyro calibration.
2. Connect the battery to the plane, then turn on the transmitter within 5 seconds.
3. The receiver LED will flash for 3-8 seconds to bind automatically.
4. After the receiver LED stops flashing, the binding process is done.

To Operate a Bound Plane:

1. Power on transmitter first (?).
2. Connect the battery to the plane within 3 seconds.
3. The receiver LED in the plane will flash and then turn solid in several seconds.
4. Switch the Gyro control stick to Gyro assist level (MIDD or BEGINNER). NOTICE: Allow the airplane to remain still for about 3-5 seconds in a calm environment when you first turn on the Gyro, to calibrate and activate it. When the Gyro starts to react, it means it is activated.
5. Turn throttle stick up to max (⬆️) and then down to min (⬇️) to arm the motor.

CAUTION: Do NOT operate around people or property, otherwise it may cause serious damage!

Throttle Unlock (Arming) ?

To prevent damage, the throttle channel is locked each time the transmitter is powered on. Follow this instruction to unlock the throttle:

CAUTION: Keep the propeller at a safe distance for your safety.

Turn the throttle stick up to the maximum position (⬆️) until you hear a "beep" sound (?). Then turn the throttle stick down to the minimum position (⬇️) until you hear another "beep" sound (?). Now the throttle is unlocked.

Digital Trims

Digital trims allow you to adjust the centered position of rudder or elevator surfaces. Each time a trimmer is moved, the servo output changes by one step. If the trimmer is held, the output will scroll in that direction until the trimmer is released or the output reaches its end. When you hear a short "beep" sound (?), it means the trimmer is centered.

Channels Reactions Checking ✔️

Place your plane in a neutral position. Follow these steps to check the channels' reactions:

• Transmitter Operation: Move the sticks (except the throttle stick) to see if all servo surfaces react correctly as shown in the diagram. (Diagram shows transmitter sticks and corresponding control surface movements: e.g., moving rudder stick left causes rudder to move left).
• Swing The Plane: Swing your airplane to check if all servo surfaces react correctly, especially the Gyro's reaction. (Diagram shows the plane being tilted or rolled, and indicates how control surfaces should move to counteract or stabilize).

One-Key Aerobatics ?

The one-key aerobatics feature allows beginner pilots to perform aerobatic actions by simply pressing the button on the transmitter. During flight, whether under manual or gyro control mode, press the one-key aerobatics button. The transmitter will beep several times (?). During the beeping, simply move the aileron stick to either direction for an auto-roll. Or move the elevator stick to either direction for an auto-flip.

One-Key Return ↩️

The Sport Cub 500 comes with a one-key return function, which enables the plane to return in the opposite direction of takeoff.

To Activate the Function:

1. Place your plane heading in the take-off direction.
2. Do NOT unlock the throttle. Press and hold the activation button for several seconds until you hear a "beep" sound (?). The rudder surface will respond, indicating the one-key return function is activated.

NOTICE: Every time you power on the plane, you need to activate the one-key return function.

To Use During Flight: Press the one-key return switch button. The plane will turn automatically and head back in the opposite direction of its takeoff. To quit, press the switch button again, or control any servo stick (rudder/elevator). The plane will return to your control immediately. No matter if you fly the plane under manual control or gyro assist mode, when you activate the one-key return function, the plane will automatically enter gyro assist mode to help stable flying back. When you quit this function, the plane will revert to its previous control mode.

CAUTION: This function is bound to the receiver, not the transmitter. This means the plane will return ONLY to the opposite direction of its takeoff. It also means that when the plane returns and passes the position where you activated the function, the one-key return function will NOT return the plane to the original takeoff position.

(Diagram shows the one-key return switch and activation process).

Gyro System Calibration

1. Turn the throttle stick to the minimum position (⬇️).
2. Power on the transmitter (?) and the receiver.
3. Do NOT unlock the throttle.
4. Hold the sticks as shown in the diagram for several seconds. (Diagram shows transmitter sticks held in specific positions, likely neutral or slightly angled).
5. When you hear a "beep" sound (?), the gyro system is calibrated based on the horizontal level you are maintaining.

Channels Reverse ?

WARNING: Normally, this function does not need to be operated. Only perform the following steps if you fully understand the channel reverse function.

1. Turn the throttle stick to the minimum position (⬇️).
2. Power on the transmitter (?) and the receiver.
3. Do NOT unlock the throttle.
4. Turn a channel stick to the maximum position (⬆️) on either side and hold for several seconds.
5. When you hear a "beep" sound (?), it means the channel is reversed.

Propeller Saver ?️

The propeller saver keeps the propeller from damage and prevents electronic components from over-current damage. When the airplane hits an obstacle, the propeller will detach from the base.

To Reattach Propeller:

1. Insert one end of the propeller into the base as shown in Step 1. (Diagram shows inserting the propeller hub into a central mount).
2. Click the other end of the propeller onto the base as shown in Step 2. (Diagram shows the other end of the propeller hub snapping into place).

Propeller Replacement ?️

Follow these steps to replace a broken propeller and shaft adapter. You will need the following tools (not included): screwdriver, pliers, and glue.

1. Carefully remove the glued spinner.
2. Loosen the screw with a screwdriver.
3. Replace the propeller if it is broken.
4. Loosen the shaft adapter and replace it if it is damaged. If the shaft adapter is too tight, use pliers.
5. Install all parts back in reverse order. Reattach the spinner to the propeller using glue.

Flight Checklist ✔️

NOTE: This checklist is not intended to replace the content of this instruction manual. Although it can be used as a quick start guide, we strongly suggest reading the manual completely before proceeding.

• Always turn the transmitter on first (?).
• Ensure the throttle control stick is at the bottom position (⬇️) before connecting the battery.
• Fly the model (hand-launch or take off from a flat/level surface).
• Land the model (on a flat/level surface).
• Unplug the battery from the ESC.
• Always turn off the transmitter last (?).

Finding a Suitable Flight Field ?️

Based on its size and weight, this plane is typically considered a "park flyer" class airplane. It is best to fly the plane at a local park, schoolyard, flying field, or other area that is large enough and free of people and obstructions. We recommend an area the size of at least one football/soccer field; larger areas are even better, especially when learning to fly.

Do NOT fly in parking lots, crowded neighborhood areas, or in areas not free of people or obstructions.

We also suggest flying over grass, as it is a much more forgiving surface that causes less damage in the event of a crash. Short grass is better for takeoffs and landings, as grass that is too long can cause the airplane to nose-over/flip and be damaged. An ideal flying area allows for takeoffs and landings on a smoother surface (e.g., asphalt) and flying over grass.

Fly in spacious ground without obstacles and foliage. Never fly the plane near highways, railways, high-tension lines, crowded people, restricted flying areas, or residential areas. NOTE: The plane is designed to be flown outdoors only.

Flying Conditions ?

It is typically best to fly on calm, windless days, especially when learning. It is strongly suggested to fly only in calm conditions until you are familiar with the controls and handling of the model. Even light winds can make learning to fly significantly more difficult and, in some cases, can carry the model beyond your line of sight.

If you are a first-time or low-time pilot, we highly recommend allowing a more experienced pilot to test fly and properly trim the model before attempting your first flight. A proven, flyable, and properly trimmed model is significantly easier and more enjoyable to fly.

After you have properly trimmed the airplane in calm conditions and become familiar with its handling/capabilities, you can fly in light winds or, depending on your experience and comfort level, in winds up to 5-7 mph (approximately 8-11 km/h).

Do NOT fly on days when significant moisture, such as rain or snow, is present.

Disclaimer and Safety Guidelines ?

• This model must not be used by children younger than 14 years.
• It contains small parts that could be swallowed.
• Keep hands, face, hair, and loose clothing away from the propeller.
• Do not reach into rotating parts.
• Always disconnect the battery connector after the flight and remove the battery from the model!
• Only fly where it is safe and where you do not endanger third parties.
• Keep the operating instructions in a safe place and read them carefully and completely before using the model.
• We recommend people with no knowledge of model flying to commission the model under the guidance of an experienced pilot.
• Before each flight, test the range of the remote control, the charge status of the rechargeable battery, and check the batteries or rechargeable batteries in the remote control.

Do not fly...

• near crowds of people,
• towards people or animals,
• in poor visibility,
• near high-voltage lines or radio masts,
• during thunderstorms, rain, snow, or in a damp environment.

General Safety Rules:

1. Always keep the aircraft in sight and under control.
2. Always use fully charged batteries / rechargeable batteries.
3. Always switch on the transmitter first (?), then the model, and always switch off the model first, followed by the transmitter (?).
4. Do not use the model if it is visually or mechanically damaged.
5. Always check all screw connections and structures for tightness and damage.
6. Never reach into the rotating propeller - risk of injury!
7. Always disconnect and remove the flight battery from the model after the flight.
8. Always charge and store the battery outside of the model, charge on a non-flammable surface, never store the battery in the model. Never charge batteries unattended!

Check about the legal provisions applicable in your country.