Introduction
The SKYRC CG & Angle Gauge (Model SK-500039) is a wireless, Bluetooth-compatible tool designed for precise gravity and angle adjustment of RC airplanes. This device provides real-time display of center of gravity data via a mobile application, enabling modelers to achieve optimal balance for safe and stable flights. Crafted from high-hardness aluminum, the gauges are durable, dust-proof, and impact-resistant, ensuring reliable performance.
Figure 1: The SKYRC CG & Angle Gauge set, consisting of three individual gauges.
Package Contents
- 3 x SKYRC CG & Angle Gauges
- 1 x Type-C Charging Cable
- Instruction Manual (this document)
Setup
Charging the Gauges
Before initial use, ensure all three gauges are fully charged. Connect the provided Type-C charging cable to each gauge's charging port and a suitable USB power source. The charging interface is a standard Type-C port.
Figure 2: Type-C charging port on the gauge. A blue light indicates charging status.
App Installation
Download and install the "RC Gears" application on your mobile phone. This app is essential for real-time data display and gravity adjustment. Search for "RC Gears" in your device's app store.
Figure 3: Download the "RC Gears" app to connect with the gauges and view real-time data.
Bluetooth Pairing
Ensure Bluetooth is enabled on your mobile device. Open the "RC Gears" app and follow the on-screen instructions to pair with the SKYRC CG & Angle Gauges. The gauges utilize Bluetooth 5.0 for a fast and stable connection.
Figure 4: Bluetooth 5.0 ensures a fast and stable connection for real-time data display.
Operating Instructions
Placing the Aircraft
Carefully place your RC airplane onto the three gauges. Position one gauge under the front wheel and one under each of the two rear wheels (or equivalent points for taildragger/tricycle configurations). The weighing modules are designed with an automatic centering feature, inspired by a wine glass shape, to prevent wheel sliding and ensure precise measurements.
Figure 5: Proper placement of the RC aircraft on the gauges for accurate center of gravity measurement.
Real-Time Data Display
Once the aircraft is correctly positioned and the gauges are connected via Bluetooth, the "RC Gears" app will display real-time data regarding the aircraft's center of gravity. This includes individual weight readings for the front/tail wheel, left wheel, and right wheel.
Adjusting Gravity and Angle
Use the real-time data from the app to make necessary adjustments to your RC airplane's weight distribution. The app provides a visual representation of the CG and helps in understanding if the aircraft is nose-heavy, tail-heavy, or has a good center of gravity.
Figure 6: App interface for CG adjustment, including visual indicators and calculation formulas.
CG Calculation Formulas:
- Taildragger: CG = ((X1-X2) * M1 - X2 * M2) / (M1 + M2) + X2
- Tricycle: CG = X2 - (X2 * M2 - (X1-X2) * M1) / (M1 + M2)
Where X1, X2, M1, M2 represent specific measurements and weights as defined within the RC Gears application.
Maintenance
Cleaning
The gauges are designed to be dust-proof. To clean, gently wipe the surfaces with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the aluminum finish or electronic components.
Battery Care
The gauges are equipped with a UIPO 3.7V 10440 rechargeable battery. For optimal battery life, avoid fully discharging the battery frequently. Recharge the gauges when the battery level is low. Store in a cool, dry place when not in use for extended periods.
Storage
Store the gauges in a safe place where they are protected from impacts and extreme temperatures. Their impact-resistant design provides good protection, but careful handling is always recommended.
Troubleshooting
Gauges not connecting to app:
Ensure Bluetooth is enabled on your mobile device. Check that the gauges are powered on and fully charged. Restart the "RC Gears" app and attempt to reconnect. If issues persist, try restarting your mobile device.
Inaccurate readings:
Verify that the aircraft is placed stably and correctly on all three gauges. Ensure the gauges are on a flat, level surface. The automatic centering feature helps, but manual verification of stable placement is crucial. Check for any obstructions or debris under the gauges or aircraft wheels.
Charging issues:
Confirm that the Type-C cable is securely connected to both the gauge and the power source. Try a different Type-C cable or USB power adapter to rule out faulty accessories. Ensure the charging port on the gauge is free of debris.
Specifications
| Feature | Detail |
|---|---|
| Brand | SKYRC |
| Model | SK-500039 |
| Color | Gray |
| Material | High-hardness Aluminum |
| Dimensions (per gauge) | Approx. 66mm (2.5 inches) diameter, 33mm (1.2 inches) height |
| Connectivity | Bluetooth 5.0 |
| Battery | UIPO 3.7V 10440 Rechargeable Battery |
| Charging Interface | Type-C |
| Quantity | 3 Gauges per package |
Figure 7: Dimensions of a single SKYRC CG & Angle Gauge.
User Tips
- For the most accurate readings, always ensure your RC aircraft is completely level and still when taking measurements.
- Periodically check the battery level of your gauges through the "RC Gears" app to avoid interruptions during critical adjustments.
- Familiarize yourself with the CG calculation formulas provided in the app and this manual to better understand the impact of weight distribution on flight characteristics.
Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for warranty claims.
