Radio Control Glossary

A 4WD RC car delivers power through a drivetrain to all four wheels simultaneously. This improves traction, particularly on loose or uneven surfaces, and makes the car more stable under acceleration. 4WD is the most common configuration in off-road bashers, rock crawlers and many competition vehicles.

4WD is generally easier for beginners because the all-wheel traction makes the car more predictable on rough terrain. 2WD is lighter, cheaper and more agile but requires more skill to control. For off-road bashing and general fun, 4WD is the practical choice. For on-road racing, 2WD platforms are popular for their handling characteristics.

A brushless motor does not use carbon brushes to transfer electricity. Instead it relies on electronic signals from the ESC to switch power between the motor's windings. This results in less friction, less heat and longer motor life than brushed motors. Brushless systems are standard in most performance-grade RC vehicles.

Brushless offers higher speed, more efficiency and much longer motor life. For enthusiasts who want the best performance and plan to use their RC vehicle regularly, brushless is the clear choice. Brushed systems are simpler, cheaper and found in most entry-level RTR vehicles. They perform well for casual use and are easy to maintain.

Bashing is a driving style focused on fun rather than competition. Bashers drive at full throttle over jumps, rough terrain and obstacles, prioritising entertainment over careful driving. It puts more stress on the vehicle than casual driving, so bashing-grade vehicles are designed with reinforced suspension and chassis components.

Look for a model with a brushless motor system, 4WD for traction, a reinforced chassis with protective bumpers and accessible spare parts. Short-course trucks and monster trucks are popular bashing platforms. Confirming that spare parts are available in Australia before committing to a model is an important step.

An RC crawler is a slow-speed off-road RC vehicle engineered for navigating rocks, ramps and rough obstacles. They use very low gear ratios, high-torque motors and flexible suspension to creep over terrain at a controlled pace. Many crawlers are detailed scale replicas of 4WD trucks and are popular for both solo driving and organised crawler club events.

Yes, with some caveats. Crawlers are forgiving in terms of driving speed, as they move slowly and give you time to react. They do not require a large open space, making them practical for backyard or indoor use on a rock garden course.

The ESC (Electronic Speed Controller) is the brain between the battery and the motor. It takes the throttle signal from the receiver and converts it into variable power to the motor, controlling speed and direction. It also handles braking. Brushless ESCs work specifically with brushless motors and require correct matching.

Match the ESC to your motor type (brushed or brushless) and your battery's cell count (2S, 3S and so on). Check that the ESC's continuous amp rating meets or exceeds your motor's peak current draw. For general bashing a forward/reverse ESC is needed. For racing a forward-only ESC is typical.

A LiPo (Lithium Polymer) battery is the primary power source for most performance RC vehicles, aircraft and drones. LiPo packs are lightweight, deliver high power and maintain consistent voltage under load. They require a dedicated LiPo-compatible balance charger and specific handling care to remain safe.

Always use a balance charger rated for LiPo chemistry. Never charge a LiPo unattended or leave it on the charger after it reaches full charge. Store LiPo packs at storage voltage (around 3.8V per cell) when not in use for extended periods. A punctured or over-discharged LiPo should be safely disposed of at a battery recycling point.

NiMH (Nickel-Metal Hydride) batteries are a rechargeable type used in many entry-level RTR RC vehicles. They are more forgiving than LiPo batteries during charging and storage, requiring less strict protocols. Performance is lower than LiPo in terms of power output and run time, but NiMH is a practical and safe choice for casual use.

NiMH is safer and more beginner-friendly. Charging is simpler and the consequences of minor charging mistakes are far less severe than with LiPo. If a beginner RTR vehicle comes with a NiMH battery, it is a fine starting point. Once comfortable with the hobby and wanting more performance, upgrading to LiPo is a straightforward next step.

RTR stands for Ready-to-Run. An RTR RC vehicle comes fully assembled from the factory with the motor, ESC, servo and receiver already installed. Many RTR packages also include a transmitter, battery and charger in the box. This is the most practical entry point for beginners because you can start running within minutes of opening the box.

RTR vehicles are fully built and ready to go with minimal setup. Kit RC vehicles come as a collection of parts you assemble yourself, requiring mechanical knowledge and additional electronics purchased separately. RTR suits beginners or anyone who wants to get running quickly. Kit builds suit hobbyists who enjoy the building process as part of the hobby.

An RC plane is a radio-controlled fixed-wing aircraft controlled by a pilot on the ground using a transmitter. RC planes range from simple slow-flying foam trainers suited to beginners all the way to high-performance aerobatic aircraft and scale replicas. Most RC planes use electric motors and LiPo batteries.

RC planes have a steeper learning curve than RC cars because you lose spatial orientation when the aircraft moves away from you. A slow-flying foam trainer with gentle flight characteristics is the recommended starting point. Flight simulators (PC software) are widely used by beginners to build control skills before flying a real aircraft.

An RC boat is a radio-controlled watercraft designed to operate on the surface of water. Types include fast electric speed boats, scale military and civilian vessels, sailing boats and catamaran hulls. RC boats use waterproofed electronics and sealed hatches to protect the battery and receiver from water.

You need the RC boat itself, a suitable body of water, a charged battery and the supplied transmitter. Check that the boat's ESC and receiver are rated as waterproof or water-resistant before use. Keep the model within comfortable range so you can respond to any issues quickly.

An RC drone (also called a quadcopter for the most common four-rotor configuration) is a multi-rotor unmanned aircraft controlled via a radio transmitter. Consumer drones are popular for aerial photography and video. Recreational drones are a fun and accessible introduction to radio-controlled aviation.

Drone use in Australia is regulated by CASA (Civil Aviation Safety Authority). Drones under 250g have minimal requirements for recreational use, but larger drones require registration and pilots must follow CASA rules covering altitude limits, no-fly zones and line-of-sight flying. Visit casa.gov.au for current rules before flying.

Scale in RC refers to how much smaller the model is than the real vehicle. A 1/10 scale RC car is one-tenth the size of the real car. Common scales include 1/10 (the most widely supported), 1/8 (larger and more powerful), 1/12 and 1/18. Scale affects the physical size of the vehicle, what bodies fit it and what aftermarket parts are compatible.

1/10 scale is the most recommended scale for beginners. It is the most widely supported for spare parts, bodies and upgrades. The vehicles are a practical size for most backyards and car parks, and the range of 1/10 RTR vehicles is the broadest.

A servo is a small motorised device that translates electronic signals into physical movement. In RC cars it typically controls the steering rack. In aircraft it moves control surfaces such as ailerons, elevator and rudder. Servos are rated by torque (turning force) and speed (how quickly they complete their rotation).

Match the physical size (standard, micro or mini) to your servo mount, check the torque rating matches the steering demands of your vehicle and confirm the connector type is compatible with your receiver. Metal-gear servos last longer than plastic-gear in rough conditions. Waterproof servos are worth considering for off-road use.

The transmitter is the controller the driver holds. It converts stick and trigger inputs into radio signals sent to the receiver inside the model. Most modern transmitters operate on the 2.4 GHz band, which allows multiple models to run simultaneously without interference. Car transmitters are typically pistol-grip style.

For a basic RC car, two channels (throttle and steering) is sufficient. Aircraft typically require a minimum of four channels. Additional channels are needed for extra functions such as lights or gear changes. A three or four channel transmitter covers most ground vehicle needs.

RC car tyres come in a wide range of tread patterns and compounds suited to different surfaces. Off-road tyres use aggressive knobby tread for loose dirt and grass. On-road tyres use slick or minimal-tread surfaces for smooth track grip. Drift tyres are hard plastic to allow controlled sliding.

Match the tyre tread to the surface you drive on most often. Knobby off-road tyres work poorly on smooth surfaces and vice versa. Also confirm the tyre's internal diameter matches your wheel rim and that the overall diameter fits within your vehicle's wheel arches.