If you're considering the Flywing EC135 RC helicopter, you likely have questions about its flight performance, compatibility, and whether it's the right model for your skill level. This comprehensive FAQ guide covers everything—from specs and flight modes to spare parts and future upgrades—helping you make an informed decision.
1. What Is the Flywing EC135 RC Helicopter?
Product Overview
The FLYWING EC135 is a 470-scale giant RC helicopter designed to replicate the iconic Eurocopter EC135, a civilian helicopter known for its sleek look and versatility. With a robust H1 flight controller, GPS-enabled features, and a durable fiberglass body, it's a favorite among RC enthusiasts. Whether you're new to the hobby or a seasoned pilot, the EC135 offers a balance of ease and advanced functionality.
Key Specs & Dimensions
- Dimensions: 795mm (length) × 265mm (width)
- Main Rotor Diameter: 810mm
- Material: Full fiberglass body with detailed finish
- Weight: ~2.5kg (with battery)
- Battery Support: Up to 5200mAh
Realistic Design Elements
Unlike cheaper plastic models, the EC135 boasts:
- Molded fiberglass fuselage (not cheap plastic)
- Realistic rivet detailing (for scale realism)
- Transparent canopy with spacious cockpit room (allows for DIY camera installations)
Even seasoned aircraft enthusiasts agree—renowned RC helicopter enthusiast Jay Kujan once commented, "And of all the GPS helies I've ever reviewed, this one has the coolest rotor I've ever seen."
2. What Flight Modes Does the Flywing EC135 Support?
GPS Mode – Position Hold, Auto-hover, RTH
The Flywing EC135 GPS RC helicopter utilizes advanced satellite positioning to deliver ultra-stable flight performance, making it perfect for aerial filming, practice, or stress-free flying.
Features:
- Auto-hover at fixed altitude and location
- One-key return home
- Failsafe return on signal loss
Attitude Mode – Manual with Stabilization
For indoor or GPS-compromised areas, attitude mode provides:
- Gyro and barometer stabilization
- Smooth manual control with safety buffers
3D Mode – For Aerobatics and Advanced Pilots
If you're into flips, rolls, and inverted flight, the EC135 supports full 3D flight when configured correctly. Only recommended for skilled pilots with 3D experience.
One-Key Takeoff, Landing, and Return
Perfect for beginners—press one button and the helicopter launches, lands, or returns to the launch point.
| Mode | Stability | GPS Dependency | Recommended For |
| GPS Mode | Very high | ✅ Yes | Beginners, FPV, precision tasks |
| Atti Mode | Moderate | ❌ No | Intermediate pilots, indoor flight |
| 3D Mode | Low (Manual) | ❌ No | Advanced pilots, aerobatics |
| One-Key Functions | Assisted | ✅ Yes | Beginners |
3. What's the Difference Between PNP and RTF Versions?
PNP Version (Plug-N-Play)
- No transmitter or battery included
- Ideal for users with existing compatible radio gear
- Allows full customization
RTF Version (Ready-to-Fly)
- Includes factory-paired transmitter, charger, and battery
- Ready to fly out of the box
- Recommended for beginners or first-time buyers
Choosing the Right Version
If you're new, go for RTF. Advanced users with their own transmitters may prefer PNP for flexibility and cost savings.
4. Compatible Transmitters & Receivers: Can You Use Your Own Radio?
Supported Protocols & Flight Controller (H1 Compatibility)
- Works with H1-compatible radios
- Supports multi-channel transmitters (Futaba, Spektrum, etc.)
Customization Options for Advanced Flyers
Advanced users can:
- Adjust flight speeds, pitch curves, and gyro gains
- Install third-party receivers if the protocols match
- Customize throttle response or servo endpoints
⚠️ Note: Only Mode 1 and Mode 2 transmitters are supported.
5. How Long Can the Flywing EC135 Fly per Charge?
Average Flight Time Based on Real Tests
The EC135 delivers approximately 20 minutes of flight time per charge, competitive with models like the ZMO-2. Flight duration varies slightly based on conditions and flying style (e.g., 3D aerobatics drain the battery faster).
Battery Specs & Recommended Capacity
- Suggested battery: 6S 4000–5200mAh LiPo
- Higher capacity batteries fit due to the roomy fuselage
- Always use manufacturer-approved batteries to ensure safety and longevity.
Charging System and Limitations
- No power bank mode (must be plugged in)
- Once fully charged, the battery does not lose charge passively.
- For best results, charge in a cool, ventilated area and avoid overcharging.
6. Is the Flywing EC135 Suitable for Beginners?
Built-in Safety & Stability Features
- One-key takeoff and auto-landing
- GPS lock for hover
- Return-to-home safety
Learning Curve and Setup Simplicity
- RTF kits are pre-calibrated
- No need for mechanical pitch tuning
- H1 setup is beginner-friendly
Beginner Recommendations and Tips
- Practice on open fields, avoid indoor flights
- Use the attitude mode to learn manual handling
- Keep spare parts like blades and skids ready
7. Spare Parts & Repairs: Where to Buy EC135 Replacement Components
Where to Buy Replacement Parts
FLYWING offers a full range of spare parts (blades, gears, motors, body components) through their online store and authorized offline repair shops. Check the official website for availability and pricing.
What's Commonly Available
- Rotor blades
- Landing gear
- Fuselage components
- Gears, swashplate, and tail assembly
Crash Prevention Tips & Fixability
- Calibrate the gyro before flight
- Avoid GPS flight in tight indoor areas
- Regular maintenance extends the helicopter's lifespan
- Most components are modular and easily replaced
8. Final Thoughts: Should You Buy the Flywing EC135?
Who This Helicopter Is Perfect For
✅ Scale RC enthusiasts
✅ Intermediate pilots wanting GPS stability
✅ DIY modders with camera or lighting ambitions
Pros & Cons Recap
Pros: GPS stability, 20-minute flight time, DIY-friendly design, durable fiberglass body.
Cons: Higher price point, no Mode 3 support, not ideal for indoor use.
Where to Buy
- You can buy the Flywing EC135 from our official website Razordon.
- If you still think the Flywing EC135 is too expensive, you can buy other aircraft in the Razordon store.
Other FAQs
1. Does the Altitude Hold Sensor Work in Manual Mode?
In manual (attitude) mode, the altitude hold sensor is not fully active. However, the EC135 still uses the barometer and gyroscope to maintain basic flight stability. You'll need to control altitude manually, but the heli won't drift uncontrollably.
2. Can the Flywing EC135 Be Equipped with Optical Flow or FPV Cameras?
Yes, the EC135's transparent and spacious canopy allows DIY installation of small FPV or Insta360 cameras. Optical flow cameras are also possible but require custom mounting and integration.
3. Is Calibration of the H1 Flight Controller Required Before Flight?
No additional calibration is needed if the unit hasn't been tampered with. The factory calibration covers gyros and GPS. Simply bind your transmitter and wait for GPS lock before takeoff.
4. Can You Add Navigation Lights or Custom Paint?
Yes, navigation lights and custom paint are feasible upgrades. The EC135's design supports DIY additions like navigation lights with basic wiring skills.
5. How Does the EC135 Compare in Size to the Bell 206 or Huey?
The EC135 is slightly larger. The fuselage is also roomier, allowing more DIY and battery flexibility.
EC135 Rotor Diameter: 810mm
Huey / Bell 206 Rotor Diameter: 805mm
6. Will There Be More Color Versions or Larger 500-Class EC135?
Maybe we will realize it in the future. You can continue to pay attention to our official website dynamics.
7. Can the Flywing EC135 RC helicopter add a spectrum satellite receiver?
The receiver can achieve centimeter-level or even sub-centimeter-level positioning accuracy, which is too demanding for the model. It is more commonly used in autonomous driving and engineering measurement.
