Flywing EC135 Helicopter Frequently Asked Questions (FAQ) — by Stirlingkit

The Flywing EC-135 by Stirlingkit is a standout GPS-equipped RC helicopter, known for its flawless finish and remarkable engineering. Its unique fenestron-style tail rotor not only enhances safety and realism but also operates more quietly than conventional designs. With exceptionally smooth power delivery and pre-programmed GPS flight modes, the Flywing EC135 offers an easy and enjoyable flying experience—even allowing hands-free filming.

1. Basic introduction and price

Q: How much does this helicopter cost?

A: The Flywing EC135 is priced at around $900 USD (about €830) at Stirlingkit. When you buy from Stirlingkit, a battery is included for free. Using the discount code can reduce the price to approximately $800 USD (about €740).

Q: Is the Flywing EC135 helicopter too expensive?

A: While the price may seem high at first, it fairly reflects the quality, features, and realistic flying experience this helicopter offers. It includes premium components like a high-end flight controller, a hand-painted fiberglass shell, and carefully selected electronics for reliability and performance. Considering the craftsmanship and technology, it represents great value and is a solid investment for serious RC enthusiasts.

2. Aircraft specifications and performance

Q: How big is this model?
A: It’s a 470 size, roughly the same size as a Bell 206 helicopter model. It’s not too small, but manageable.

Q: How long can I fly on a single battery charge?
A:

The Flywing EC135 helicopter offers a flight time of approximately 20 minutes per battery charge, though actual duration may vary depending on flying style and environmental conditions.

If you plan to fly for extended periods or conduct filming, it’s recommended to have multiple spare batteries on hand to ensure uninterrupted flight time.

Additionally, Stirlingkit currently provides spare parts for the Flywing EC135, including batteries, servos, and rotor blades, making maintenance and upgrades convenient.

Please note that flight time can be affected by various factors such as flying style, wind conditions, and battery health. To ensure the best flying experience, always check battery levels before flying and carry spare batteries as needed.

Q: How long does the battery last?
A: You can get around 16 minutes of flying time, which is pretty decent for this kind of RC heli.

Q: How far can the helicopter fly?
A: The helicopter's flight range is limited due to rotor RPM and battery capacity, so it cannot perform high altitude or long-distance flights.

Q: How loud is it? / Is the electric motor noisy?
A: It’s normal for RC helicopters to make some noise because of their electric motor, rotors spinning at high speeds, and mechanical parts working together. The Flywing EC135’s electric motor and its 4-blade rotor naturally generate sound during flight, which is part of the realistic experience. While it might be a bit louder than some smaller models, the noise level is typical and not excessive. This sound also helps give feedback on the helicopter’s performance and operation.

3. Flight performance and control

Q: Is the Flywing EC135 suitable for beginners, or do I need prior flying experience?
A: Yes, the Flywing EC135 is beginner-friendly thanks to its GPS stabilization and advanced flight assistance features. Even if you’re new to RC helicopters, you can start learning with some practice, though prior experience can help you get the most out of it.

Q: Can I fly it manually or hover without GPS?
A: Yeah, you can take full manual control. But the GPS flight modes make flying way easier, especially if you’re not a pro pilot.

Q: Does it hover without stick input?
A: Yes, GPS helps it hover steadily.

Q: Does it have pre-programmed flight modes?
A: Yes, GPS-assisted flight modes make flying easier for beginners.

Q: What controller modes does this support?
A: Supports common RC modes like Mode 1 and Mode 2.

Q: Can the radio controller be replaced? I find it hard to fly with centered sticks and would like a better control option.
A: Yes, you can change the radio controller for easier and more comfortable flying.

Q: What kind of radio controller does it use? Can I change the settings?
A: It uses a 2.4GHz radio controller with adjustable settings for flight modes and dual rates. The controller supports beginner to expert pilots with customizable options.

Q: Are GPS helicopters easy to fly?
A: Definitely! They have flight modes that basically fly themselves, so even beginners can have fun.

4. Body design and details

Q: What is special about the tail rotor design on the Flywing EC135?
A: The Flywing EC135 features a Fenestron tail rotor, a design often used on real Airbus helicopters. Unlike traditional exposed tail rotors, the Fenestron encloses the blades within a duct, which helps reduce noise and improves safety. This design also eliminates the need for a belt drive, making the tail control more reliable and stable. These characteristics contribute to smoother and more precise flight performance, setting this model apart from many others.

Q: Are the landing skids and blade colors scale accurate?
A: While the overall design aims for realism, some users have noticed that the landing skids are not fully to scale, and the rotor blade colors may differ slightly from the real EC135 helicopter.

Q: Does the Flywing EC135 model include detailed antennas and sensors?
A: The model does include standard antennas and sensors needed for its 2.4 GHz remote control system.

Q: Are any plastic parts used in the helicopter?
A: Yes, certain components like control rods and smaller parts are made from plastic to balance weight and cost while maintaining structural integrity.

5. Color and version

Q: Does this helicopter come in different colors? I’d love a yellow one like the BO-105.
A: Yes, it’s available in a bright yellow version inspired by the classic BO-105. This is the main color option at the moment. For future color updates or limited editions, we recommend keeping an eye on Stirlingkit or joining their newsletter to stay in the loop.

Q: Is Medicopter 117 version available?
A: No, it’s not available now.

6. Packaging and transportation

Q: I’ve heard some people had shipping issues. What if mine arrives damaged?

A: Honestly, that was one of my concerns too before ordering. With something as big and delicate as this helicopter, shipping can get a bit rough—some users did report boxes arriving dented or parts broken, especially with FedEx.

The good news is: Stirlingkit has improved their packaging since May 2025, with reinforced double layers and better cushioning. Things have been much better since.

If something still goes wrong, reach out to Stirlingkit right away. They’ll help you check everything online first. If it's a factory issue or damage caused during shipping, they’ll cover the repair or replacement, and even arrange for service through a local US repair center.

Now, if the problem turns out to be from user error—like a crash or wrong setup—you’ll probably need to pay for the repair. But here’s the cool part:
If you’ve bought from Stirlingkit before, they actually offer special discounts or repair perks for returning customers. Kind of a “we’ve got your back” deal.

Just make sure you keep the box and take photos if anything looks off when it arrives.

Q: Would buying an extra shell be a good idea?
A: Absolutely. If you fly regularly, having a backup shell is a smart precaution—accidents happen, and it’s much less stressful when you’re already prepared.

The good news is, Stirlingkit now offers official spare parts for this helicopter, including the shell, blades, skids, and more. You can order them directly if anything gets damaged.

Also, don’t miss the upgraded carrying case available at Stirlingkit. It’s designed for better protection and easier transport—many users say they wish they had gotten it right away.

7. Repairs and spare parts

Q: Are spare parts and accessories available?
A: Yes. Stirlingkit offers a full range of spare parts and accessories for the Flywing EC135 , including blades, tail rotors, batteries, skids, and shells. You can buy them directly from the Stirlingkit website whenever you need.

Q: Can I get replacement parts if something breaks?
A: Absolutely. If any part gets damaged, you can purchase official replacement parts from Stirlingkit. These parts are made to fit perfectly and keep your helicopter performing at its best.

Q: Can I 3D print replacement parts myself?
A: While 3D printing is creative, we recommend using genuine parts for safety and compatibility. Official components are more reliable in terms of strength, fit, and flight stability — especially for a GPS-assisted model like this.

Q: Is there maintenance or repair service available?
A: Yes. If you need help, Stirlingkit offers online support and can assist with troubleshooting. For more serious issues, there’s also a U.S.-based repair service. Factory or shipping-related issues are covered, while user-caused damage may involve a service fee. Long-time Stirlingkit customers may receive extra perks or discounts.

8. Features and accessories

Q: Can I mount a camera on this helicopter for aerial footage?
A: This model can support lightweight cameras like the Insta-360, but it doesn’t come with built-in mounting points or direct camera mounts. Mounting a camera requires some DIY skills to ensure it’s securely attached and properly balanced to maintain safe flight.

Q: Why doesn’t it come with a built-in camera?
A: This model focuses on flight performance; cameras can be added separately if desired.

Q: Can I use this helicopter to film stuff?
A: Yes! The GPS flight modes let you set it to fly on its own while you record hands-free.

Q: Can I use the Flywing EC135 helicopter for filming or FPV flying?
A: Yes, the Flywing EC135 features GPS flight modes that allow hands-free flying while you record, making it great for filming. However, it does not currently support FPV or head tracking. Many users hope that future versions will include FPV and scale FPV features, which would be exciting upgrades.

9. Instructions and Operation

Q: Do I need to calibrate the helicopter after receiving it?
A: No calibration is needed right out of the box. The Flywing EC135 comes with factory settings already configured for immediate flight.

Q: What if the GPS won’t link and the helicopter won’t fly?
A: If that happens, contact Stirlingkit support for assistance. It might require a firmware update or some troubleshooting to get the GPS linked properly.

10. Other FAQs

Q: Does this helicopter come with navigation lights?
A: Unfortunately, this model does not include navigation lights. It focuses on scale realism and flying performance rather than lighting features.

Q: What is the difference between the PNP and RTF versions?
A: The PNP (Plug and Play) version requires you to provide your own transmitter and receiver. The RTF (Ready To Fly) version comes fully equipped with everything you need to start flying right away.

Q: Can this helicopter perform 3D aerobatics?
A: This helicopter is designed mainly for stable, scale-like flight and is not built for advanced 3D aerobatic maneuvers.

Q: Is this a serious RC helicopter or a toy?
A: It is a serious RC model made for enthusiasts and experienced pilots, offering realistic flight characteristics—definitely more than just a toy.

Q: Can I fly the Flywing EC135 indoors?
A: The Flywing EC135 is classified as a “470 class” helicopter, which means the distance from the main rotor to the tail rotor is about 470mm. However, the overall length of the helicopter is around 700 to 800mm. Due to its relatively large size, it is best suited for outdoor flying or very spacious indoor areas where there is enough clearance to fly safely. Flying it in small indoor spaces is not recommended.

Q: What languages is the manual in?
A: The manual is primarily in English.

Q: Where is this helicopter shipped from?
A: Currently, shipments are made from China. In the future, local shipping options from the US and Europe may become available. Shipping from China to the US is free and includes taxes, with delivery typically in 10–20 days via standard logistics. For Europe, delivery usually takes 7–15 days, also free shipping and taxes included with secure packaging.

Q: Which markets is this helicopter popular in?
A: This model is popular worldwide, especially in the US, Europe, and Asia.

Q: Where can I buy this helicopter?
A: You can purchase it online through official retailers, including Stirlingkit.

Q: Can I visit a physical store to buy or see the helicopter?
A: For physical store locations or to see the helicopter in person, please check with local authorized dealers or visit the Stirlingkit official website for dealer information.

Q: Does it have the correct identification markings?
A: Some units may lack certain scale markings, as the focus is on flight performance rather than perfect visual detail.

Q: Does the helicopter often fly near residential areas?
A: Many users have reported seeing it flown near residential neighborhoods, so it’s quite common in various areas.

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