Building a Nitro RC Helicopter Kit: Tips and Tricks.

Building a Nitro RC Helicopter Kit: Tips and Tricks.

RC helicopters have been one of the most beloved remote-controlled toys across generations. While electric models have been gaining popularity over the years, true enthusiasts know that nothing beats the adrenaline rush of a nitro-powered helicopter. Nitro RC helicopter kits offer an authentic and powerful flying experience that can make even the most experienced pilots feel alive. However, building and maintaining a nitro RC helicopter kit can be challenging and time-consuming. Unlike RTF and BNF models, nitro kits require skill, patience, and knowledge. But if you’re up for the task, the satisfaction and fun of flying a self-built and fine-tuned nitro helicopter can be unparalleled. In this article, we’ll provide a comprehensive guide on what nitro RC helicopter kits are, how they work, what you need to assemble and operate them, and some tips and tricks for success. Whether you’re a beginner or a veteran in the RC helicopter hobby, this article aims to equip you with the information and motivation to try your hand at creating your own nitro-powered beast. So buckle up and let’s take off into the world of nitro RC helicopter kits!

Nitro RC helicopter kits are a type of remote-controlled helicopter that uses a nitro-methane combustion engine instead of electricity to power the rotors. These kits typically come with unassembled parts, such as the airframe, engine, rotor blades, and electronics, that require the pilot to assemble and tune them according to the instructions and preferences.

Some of the components and features of a nitro RC helicopter kit include:

  • A two-stroke engine that runs on a fuel mixture of nitromethane, methanol, and castor oil.
  • A fuel tank and tubing for the fuel supply.
  • An exhaust system that releases the burnt fuel and air mixture.
  • A clutch system that engages and disengages the engine from the rotor blades.
  • A cooling system that prevents the engine from overheating.
  • A remote control transmitter and receiver that allow the pilot to control the helicopter’s movements.
  • A gyroscopic stabilization system that helps maintain the helicopter’s orientation in the air.
  • Adjustable pitch and throttle controls that enable the pilot to vary the lift and speed of the helicopter.
  • Metal or carbon fiber rotor blades and tail rotor that provide lift and maneuverability.

Some of the benefits and challenges of building and operating a nitro RC helicopter kit include:

  • The sense of accomplishment and pride that comes with building your own helicopter from scratch.
  • The ability to customize and upgrade different components of the helicopter based on your preferences and skills.
  • The opportunity to learn and practice assembly, maintenance, and troubleshooting skills that can be useful in other areas.
  • The higher performance and realism of nitro helicopters compared to electric ones, in terms of speed, sound, and vibration.
  • The higher initial cost, complexity, and maintenance requirements of nitro helicopters compared to other types of helicopters.
  • The need for extra equipment and supplies, such as glow plugs, starter batteries, fuel pumps, and tuning tools.
  • The potential risks and hazards associated with handling combustible and rotating parts, such as fire, explosion, or injury.

If you’re considering buying or upgrading a nitro RC helicopter kit, you may want to check out some resources and products online. Websites such as RCGroups, HeliFreak, and RCUniverse offer forums, reviews, and tutorials on various aspects of the RC helicopter hobby, including nitro kits. You can also find some nitro helicopter kits on shopping sites such as Amazon, Tower Hobbies, and Motion RC. However, it’s important to do your due diligence and research before making a purchase, as the quality, compatibility, and price of nitro helicopter kits can vary significantly.

Which remote control helicopter is the best?

When it comes to remote control helicopters, it can be overwhelming to choose the best one for your needs. However, if you’re looking for an indoor flying option that is both durable and agile, the Blade Nano S3-RTF is a top contender.

One of the standout features of this helicopter is its carbon fibre frame. This material provides both strength and lightness, ensuring the helicopter can withstand crashes and collisions without being too heavy to manoeuvre. Additionally, the high-performance rotor blades give the helicopter stable and agile flight capabilities, allowing for impressive acrobatic 3D manoeuvres.

Overall, if you’re looking for a top-performing remote control helicopter for indoor flying, the Blade Nano S3-RTF is definitely worth considering.

What skills and tools are needed for a nitro RC helicopter kit?

Building and maintaining a nitro RC helicopter kit requires both mechanical skills and theoretical knowledge. Here are some of the essential skills and tools that you’ll need:

  • Basic hand tools, such as screwdrivers, pliers, wrenches, and hex keys, for assembling and disassembling different components.
  • Specialized tools, such as a pitch gauge, a flybar lock, a clutch tool, and a nitro fuel tester, for tuning and adjusting specific parts.
  • Clean and well-lit workspace with sufficient ventilation and fire safety measures.
  • Reading comprehension skills, as you’ll have to understand and follow the instructions and manuals for each component.
  • Problem-solving skills, as you may encounter unforeseen issues or errors during the assembly and tuning process.
  • Mechanical aptitude, as you’ll need to have a good sense of how different parts fit together and function within the helicopter.
  • Knowledge of nitro engine principles and operation, such as compression ratio, glow plug heat range, fuel mixture, and break-in procedure.
  • Familiarity with the electronics and programming of the remote control system, such as setting the throttle curve, the exponential rate, and the mixing ratios.
  • Patience, attention to detail, and cautiousness, as you’ll be working with delicate and high-speed parts that can cause serious injury or damage if mishandled.

Despite the challenges and requirements, building and flying a nitro RC helicopter kit can be a rewarding and enjoyable experience. Here are some interesting facts and tips that you may find useful:

  • The first RC helicopter was invented in the 1940s by French engineer Paul Cornu, but it was not until the 1980s that nitro-powered helicopters became popular among hobbyists.
  • The record for the fastest RC helicopter speed is currently held by a custom-built nitro helicopter that reached 360 km/h (224 mph) in 2013.
  • Nitro fuel is a highly flammable and volatile mixture that requires special handling and storage. It typically contains between 5% and 40% nitro-methane, 10% to 30% methanol, and 10% to 20% castor oil.
  • There are several online communities and clubs dedicated to the nitro RC helicopter hobby, such as the NitroRCX forum, the NitroHelis group, and the NitroModels Facebook page. These resources can provide you with advice, support, and camaraderie with other enthusiasts around the world.
  • Some of the popular nitro RC helicopter kits on the market include the Thunder Tiger Raptor, the Align T-Rex, and the Hirobo Shuttle. Each kit may have different specifications, features, and price ranges, so it’s important to compare and choose wisely.

If you’re interested in seeing some of the tools and parts needed for a nitro RC helicopter kit, check out the table below:

Nitro RC Helicopter Kit Tools and Parts
Tool/Part Description Price
Screwdriver set Includes different sizes and types of screwdrivers for fastening and loosening screws and bolts $10-$30
Pitch gauge Measures the angle of the rotor blades and assists in balancing and adjustment $5-$20
Fuel pump Transfers fuel from the container to the helicopter’s fuel tank $5-$15
Nitro fuel Combustible mixture that powers the engine and requires careful handling and storage $20-$50 per gallon
Glow plug igniter Provides the initial spark to ignite the compressed fuel in the engine $10-$30
Flybar paddles Controls the stability and maneuverability of the helicopter by adjusting the pitch of the rotor blades $5-$20

How do you start Nitro heli?

Starting a Nitro heli might seem like a daunting task, but with the right equipment and steps, anyone can do it. To begin with, you need to engage the cone with your electric starter from underneath the helicopter. This is very similar to the process of pressing the starter up to the propeller spinner on an RC airplane. Once you’ve done this, the engine should start to turn over. It’s important to ensure that your helicopter is securely fastened to the ground before starting the engine. This will prevent any accidents from occurring during the startup process.

After you’ve engaged the electric starter, you’ll need to prime your helicopter engine. This involves adding a few drops of fuel to the carburetor before starting the engine. This will make sure that fuel is available in the engine even before it’s been started. Once this is done, turn on the radio and set the throttle to the lowest point. Ensure that the head and tail blades of the helicopter are free to move, as this is an important step in making sure your helicopter starts properly.

In conclusion, starting a Nitro heli requires patience and careful attention to detail. With the right steps and equipment, even a beginner can get started. So next time you’re ready to take to the skies with your Nitro heli, remember these tips to get your engine up and running smoothly.

What are the key components of a nitro RC helicopter kit?

To understand how a nitro RC helicopter kit works and how to assemble and tune it, it’s important to familiarize yourself with its key components. Here are some of the essential parts that make up a typical nitro RC helicopter kit:

  • Engine and muffler: The nitro engine is the heart of the helicopter that converts the stored fuel into mechanical power through combustion. It consists of several parts, such as the crankcase, the piston, the connecting rod, the carburetor, and the glow plug. The muffler helps to reduce the noise and temperature of the exhaust gases.
  • Airframe and canopy: The airframe is the skeleton of the helicopter that supports and connects all the other components. It is usually made of lightweight and durable materials, such as carbon fiber, aluminum, or plastic. The canopy is the outer shell that covers the airframe and adds color and style to the helicopter.
  • Rotor system: The rotor system consists of the main rotor blades, the tail rotor, the flybar, the mixing arms, and the swashplate. It provides lift, stability, and control to the helicopter by changing the pitch and speed of the blades in response to the remote control inputs.
  • Electronics: The electronics include the remote control transmitter, the receiver, the servos, the electronic speed controller (ESC), and the gyro. They enable the pilot to send signals to the helicopter and receive feedback from it, as well as regulate the power and direction of the motor.
  • Fuel system: The fuel system includes the fuel tank, the fuel line, and the fuel filter. It stores and delivers the nitro fuel to the engine, and ensures that it is clean and free from contaminants.

Each of these components has its own features, specifications, and variations, and may interact with each other in different ways depending on the design and model of the kit. For example, some nitro RC helicopter kits may have a belt-driven tail rotor instead of a shaft-driven one, or a three-blade main rotor instead of a two-blade one. Some kits may also offer optional or aftermarket parts that can enhance the performance, appearance, or durability of the helicopter.

To learn more about the anatomy and functions of a nitro RC helicopter kit, you can consult the instruction manual that comes with the kit, or visit some of the following websites:

  • RC Helicopter Fun
  • Helifreak
  • RC Helicopter Builder
  • Model Sport

Alternatively, you can watch some of the videos or tutorials on YouTube or Vimeo that demonstrate how to assemble and fly a nitro RC helicopter kit, or share tips and tricks for maintenance and troubleshooting. Some of the popular channels and creators in this niche include:

What are the components of RC helicopter?

RC helicopters are incredible aircraft machines that have become incredibly popular among hobbyists around the world. It is not only a source of entertainment but also a great way to learn the workings of a helicopter. To understand how an RC helicopter works, we need to know its components.

The main components of an RC helicopter consist of the rotor hub, main rotor, swash plate, tail servo, tail boom, tail rotor, and landing skid. They all play a vital role in the helicopter’s operation, and understanding how they work together helps in controlling the helicopter.

The rotor hub is the central part of the helicopter and the place where all other parts connect. The main rotor attached to the rotor hub provides lift and controls the helicopter’s flight. The swash plate, which is powered by the motor, controls the pitch of the rotor blades and enables the helicopter to move in various directions.

The tail servo is the part of the helicopter responsible for controlling the pitch of the rear rotor blade, known as the tail rotor. The tail rotor plays an important role in the helicopter’s stability, and without it, the helicopter would spin out of control. The tail boom connects the tail rotor to the main body of the helicopter and stabilizes the tail rotor.

Finally, the landing skid provides the necessary support for the helicopter to land safely without damaging its components. In conclusion, all these parts work together to ensure the helicopter’s smooth operation, and mastering these components requires patience and practice.

Tips and tricks for assembling and tuning a nitro RC helicopter kit

Assembling and tuning a nitro RC helicopter kit can be a rewarding and challenging experience, but it requires attention to detail, patience, and some trial and error. Here are some tips and tricks that can help you get the most out of your nitro RC helicopter kit:

  • Prepare your workspace: Before starting to build the kit, make sure you have a clean, well-lit, and ventilated workspace that is free from clutter, dust, and distractions. Use a large plastic tray or box to keep all the parts and tools organized and easily accessible. Have a towel or tissue paper handy to wipe your hands and tools. Follow the instructions step-by-step, and double-check each step before moving on.
  • Inspect and test the parts: Before using any part, inspect it for any defects, scratches, or wear. Make sure it matches the specifications and tolerances given in the manual. Test the servos, receiver, ESC, and gyro using a radio tester or multimeter, and make sure they respond correctly to the remote control inputs. Check the engine and fuel system for leaks, clogs, or cracks. Use the recommended lubricants and adhesives as needed.
  • Align and balance the parts: Proper alignment and balance are crucial for the performance and stability of the helicopter. Use a bubble level, a straight edge, or a gauge to ensure that the rotor blades, the tail boom, and the motor axis are aligned to each other and to the ground. Check the balance of the blades using a balancer or a scale, and adjust the weight or pitch if necessary. Make sure the center of gravity is located within the recommended range.
  • Fuel and start the engine: Follow the instructions for fueling and starting the engine carefully, as this can affect the longevity and power output of the engine. Use the recommended fuel mix and brands, and make sure the fuel filter is clean and secured. Prime the fuel circuit by rotating the engine until the fuel reaches the carburetor. Use a glow starter or a heat gun to ignite the glow plug, and start the engine using the starter cord or the electric starter. Adjust the carburetor settings gradually according to the temperature, humidity, and altitude.
  • Adjust the throttle and pitch curves: The throttle and pitch curves determine how much power and lift each stick movement generates, and how smooth or aggressive the transitions are. Use the remote control settings or software to adjust the curves to your preference, and test them in a controlled environment before performing complex maneuvers. Be aware of the throttle hold and the emergency cutoff functions, and use them in case of a crash or malfunction.
  • Break-in the engine gradually and smoothly: The first few tanks of fuel can have a significant impact on the lifespan and performance of the engine. Take your time to break-in the engine by running it at low and medium speeds for several minutes, and gradually increasing the speed and load. Avoid running the engine at full throttle or full power for more than a few seconds, as this can cause overheating, damage, or seizure. Monitor the temperature and sound of the engine, and adjust the carburetor settings as needed.

By following these tips and tricks, you can increase your chances of success in building and operating a nitro RC helicopter kit. Remember that every kit and every pilot is unique, and that there’s no single formula for achieving perfection. Don’t be afraid to ask for help or advice from other hobbyists, and learn from your mistakes and successes.

For more information and inspiration on nitro RC helicopter kits, you can visit some of the following websites:

How do you bind an RC helicopter?

Binding an RC helicopter is a crucial step in the setup process before you can start flying it. It involves establishing a secure wireless connection between the helicopter and the transmitter. Without binding, the helicopter won’t be able to receive instructions from the controller.

To bind an RC helicopter, you first need to turn on both the helicopter and the controller. Ensure the helicopter is in binding mode, usually indicated by a flashing light or a specific sequence of LED light colors. Then press and hold the binding button on the controller while moving the throttle stick to its maximum position. After a few seconds, the transmitter will beep or indicate that binding is successful.

It’s essential to follow the manufacturer’s instructions before binding your helicopter, as different models may have different binding procedures. Binding incorrectly can cause the helicopter to malfunction and crash, resulting in damage to the helicopter or surrounding property.

If you’re having trouble binding your helicopter, double-check that the transmitter and receiver are compatible, and the batteries are fully charged. It’s also worth resetting the controller and checking the cables and connections are secure.

Overall, binding an RC helicopter is a necessary process to ensure the device functions correctly and safely. Taking the time to learn the correct procedure and following the instructions carefully can prevent unnecessary damage and frustration in the future.


Building and operating a nitro RC helicopter kit can be a challenging but rewarding hobby for those who seek a more realistic and thrilling flying experience. With the right skills, tools, and attitude, you can enjoy the freedom, creativity, and social interaction that come with this fascinating hobby. However, you should be aware of the risks and limitations of nitro-powered models, such as noise, fumes, fire, and crashes, and take appropriate precautions and safety measures.

Before buying a nitro RC helicopter kit, make sure you do your research and compare the features, prices, and reviews of different models and brands. Consider your budget, skill level, and flying environment, and choose a kit that suits your needs and preferences. Read the instructions and manuals carefully, and watch tutorials or attend workshops to improve your knowledge and technique.

Remember that building and operating a nitro RC helicopter kit is not just about achieving the perfect performance or winning the competition, but also about enjoying the process, learning from your mistakes, and sharing your passion with others. Join online or local communities, attend events or contests, and communicate with other hobbyists to expand your horizons and make new friends. With patience, persistence, and creativity, you can take your nitro RC helicopter kit to new heights and have a blast!