If you’ve ever dreamed of flying a helicopter that feels as real as it looks, the FL500 giant RC helicopter lineup is made for you. Built for hobbyists who crave more than just casual flight, these 500-class machines combine scale-accurate design with intelligent flight control powered by the advanced L7 system.
Let’s dive into the technology, models, and features that make the FL500 Series stand out.
What Makes a Giant RC Helicopter So Special?
The Appeal of 500-Class RC Helicopters
Giant RC helicopters (500-class and above) offer an unmatched flying experience. Their larger size—typically featuring an 800–1000mm rotor diameter—provides:
- Superior in-air stability, even in windy conditions
- Improved visibility for both FPV and line-of-sight flying
- Impressive scale presence that elevates realism and enjoyment
The FL500 series takes this realism further with scale-authentic bodies modeled after the EC135, BO105, and UH-1 Huey. These models include functional details such as LED navigation lights and even offer the payload capacity for GoPro-sized cameras, making them suitable for both flying and filming.
FL500 Series Overview
The FL500 series includes three distinct models, each powered by the revolutionary L7 flight controller. Available as ready-to-fly (RTF) kits, these helicopters are equipped with smart features that make them accessible yet powerful for all skill levels.
Three Distinct Models, One Engineering Standard
- FL500 EC135: Smooth and Stable Aerial Cruiser
The FL500 EC135 features a sleek, enclosed body with a low-profile tail boom and streamlined rotor design, giving it a modern, professional appearance in the sky. Its aerodynamic structure supports ultra-smooth hovering and stable forward flight, ideal for calm, realistic cruising. With subtle detailing and a clean silhouette, the EC135 is perfect for hobbyists who prioritize both visual appeal and refined control in open-sky environments.
- FL500 BO105: Compact Control and Responsive Feel
With its short nose, tight frame, and balanced structure, the FL500 BO105 is built for those who value control and responsiveness. It’s a great choice for open-field flying, offering a satisfying combination of scale realism and maneuverable handling. What sets the BO105 apart is its integrated cockpit, adding a deeper level of visual authenticity.
- FL500 UH-1 Huey: Nostalgia with Modern Flight Confidence
Built with scale authenticity in mind, the FL500 UH-1 Huey captures the timeless look of classic rotorcraft with its rounded front, twin-blade configuration, and tall tail boom. It’s a model that brings historical character into the present—with solid structural balance and smooth hovering performance. Whether you're drawn to military aesthetics or simply enjoy flying something with heritage, the Huey offers a visually striking and reliable flight experience.
Shared Technology and Smart Features
Despite their individual styles, all FL500 models are built on the same high-performance foundation. Here's what unites them:
- Advanced L7 Flight Controller: GPS-enabled, Bluetooth-capable, and featuring real-time data overlays via integrated OSD. It ensures smoother, smarter, and safer flights.
- Fully Ready-to-Fly (RTF) Configuration: Every unit includes a transmitter, ESC, servos, and pre-installed electronics—no setup headaches.
- Detailed Scale Fuselage: Realistic rotor blades, precision paintwork, and LED navigation lights make these helis visually stunning on the ground and in the air.
- Pilot-Friendly Safety Features: From built-in beeper alerts and external LED indicators to customizable flight modes via mobile app, the FL500 prioritizes both control and convenience.
L7 Flight Controller: Precision, Safety, and Smart Tech
The L7 flight controller is what truly sets the FL500 Series apart, delivering the kind of flight intelligence and reliability usually found in high-end drone systems.
High-Performance H7 Processor with Dual-Precision Floating-Point Units
The L7’s H7 processor runs at 480 MHz (overclockable to 550 MHz+), offering four times the computational power of the STM32F405， which means faster calculations, more responsive handling.
Its dual-precision floating-point units ensure high-accuracy control, eliminating cumulative errors that plague single-precision systems like those in H1 and H2. This means smoother, more precise flights, even during complex 3D aerobatics.
Dual IMUs and Vibration Damping for Flight Stability
To ensure stable, accurate control, the L7 uses two high-performance inertial measurement units (IMUs) paired with a hybrid anti-vibration system.
The combination of hardware damping and software filtering reduces signal noise, allowing the controller to read and respond to real-time conditions with extreme precision—even during high-speed or aerobatic flight.
Real-Time Data, Custom Modes, and App Integration
The L7’s built-in Bluetooth module enables wireless connection to a mobile app, where users can:
- View the GPS satellite status and battery voltage before takeoff
- Access onboard diagnostics to troubleshoot potential issues
- Customize flight modes for specific styles (e.g., hover, cruise, acrobatics)
- Display real-time telemetry data such as speed, altitude, temperature, and rotor RPM via OSD overlay
Independent Power System and Expansion Ports
Unlike typical controllers, the L7 features its isolated power circuit. This shields the flight system from voltage fluctuations caused by servos, receivers, or other peripheral electronics—dramatically reducing the risk of in-air shutdowns or reboots.
Multiple expansion ports also support future upgrades like dual GPS modules, optical flow sensors, or obstacle avoidance systems.
Is the FL500 Series Right for You?
Choosing the right RC helicopter comes down to your goals, experience level, and flying style. The table below outlines key features, benefits, disadvantages, and ideal use cases to help you decide：
| Skill Level | Key Features | Benefits | Disadvantages | Ideal Use Cases | Recommended Score |
| Beginner | GPS stabilization, mobile app, external LEDs, beeper | Easy setup, intuitive control, real-time GPS & battery feedback | Learning curve vs. micro helis; not travel-friendly | Casual flying, casual missions, EMS flight simulation | ★★★☆☆ |
| Intermediate | Dual IMUs, vibration damping, customizable modes, OSD | Stable yet agile for confident flying; precise control for light aerobatics. | Higher cost than smaller models | xperimenting with 3D maneuvers, Outdoor GPS flying, | ★★★★☆ |
| Expert | H7 processor, dual-precision floating point, expansion ports, independent power | Fast response; 3D maneuvering support; modular upgrades | higher cost | Precision aerobatics, payload use, pro filming | ★★★★★ |
Early Bird Offer: Save $200 on Your FL500 Giant RC Helicopter
If you've been waiting for the right time to upgrade to a true giant RC helicopter, this is it.
For a limited time only, you can save $200 on the powerful, feature-packed FL500 Series—our largest and most advanced giant RC helicopters to date.
What’s Included in Your Purchase:
Due to the size and structural complexity of the FL500, the package is delivered in two separate boxes. Self-assembly is required. A complete assembly video is available—please contact our customer service at service@razordon.com.
Package 1:
- Helicopter fuselage (pre-painted scale body)
- Cockpit *1(included only with FLISHRC FL500 BO105 GPS RC Helicopter)
Package 2:
- Internal mechanical and electronic components
- Remote control*1
- 4500mAh 6S 60C LiPo battery*1
- Charger*1
- Receiver*1
- Screwdriver*1
Age Recommendation: 18+ only
Important Safety Notice
The FL500 is a high-performance RC helicopter intended for experienced or responsible users. It falls under the category of high-risk RC model equipment. For your safety and the safety of others, please observe the following precautions:
- Always fly in open areas, away from people or property
- Inspect all screws, linkages, and rotors before each flight
- Confirm all parts are properly assembled and thread-locked
- Improper installation or misuse may result in loss of control and serious damage
The user assumes full responsibility for any damage or accidents caused by negligence or improper operation.
Additional Pre-Purchase Tips
- The RTF version is available in Mode 1 (right-hand throttle) and Mode 2 (left-hand throttle). Please double-check your preferred control mode before ordering.
- If you prefer a BNF version (without transmitter, battery, charger, or tools), please contact service@razordon.com to customize your order.
Final Thoughts: Go Big with the FL500 Giant RC Helicopter
The FL500 Series isn’t just an upgrade in size—it’s a leap forward in scale realism, intelligent control, and aviation-grade performance.
With the advanced L7 flight controller onboard, you gain access to a suite of features—GPS stabilization, dual IMUs, real-time OSD, app integration, and more—that were once reserved for professional drone systems.
Add in detailed scale bodies, smart LED indicators, and a durable mechanical build, and you have a flying experience that’s as immersive as it is intelligent.
Ready to Pilot Your Own Giant RC Helicopter?
Get $200 Off the FL500 Series Today.
Explore all models and claim your early bird discount while it lasts.
