The newest frequency band, no interference- free spread spectrum for digital RC system (Will allow for the pairing of a transmitter to a dedicated receiver)
Short for two-stroke cycle, it takes two full piston compressions to complete a cycle.
A FM frequency band used generally for ground RC and low Channel items. This type of system generally gets interference on their band. Usually have interchangeable crystals in the transmitter and receiver.
Combine two maneuvers at a time giving the ability to move in a three-dimensional motion. Ex. Piro Flip or Chaos
Short for four-stroke cycle, it takes four piston compressions to complete a cycle.
A type of connector that has a female and male end that is in the shape of a barrel
Short for 4 wheel drive. The drive train powers all four wheels to obtain better traction.
A FM frequency band used for general RC aircraft (helicopters and planes). Short range and may have interference. Usually have interchangeable crystals in the transmitter and receiver.
Suspension arms on the front of RC cars that are A shaped.
Hinge control surface on the main wing of a plane that causes the plane to roll.
Two elevator servos plugged into two different channels on the receiver to control the elevator with the option of moving the servos independently in conjunction with ailerons.
Shape of wing, propeller, or blade that creates lift, thrust, or propulsion.
An abbreviation for Academy of Model Aeronautics. It is an organization the governs the model aviation in America.
Measurement of constant current of electricity flow.
A type of servo that operates by using constant on and off pulses.
An abbreviation for Almost-Ready-to-Fly. These are pre-built kits with some electronics included in the model but it is not complete. See ARTR, RTF, RTR, BNF, PNP and KIT.
Rotating central part inside a motor's can.
An abbreviation for Almost-Ready-to-Run. These are pre-built kits with some electronics included in the model but not complete. See ARF, RTF, RTR, BNF, PNP and KIT
Type of linkage that uses balls rather than control horns.
A light weight and foamy type of wood used to construct certain RC model planes.
A part that hinders the relative movement of two or more parts
An abbreviation for Battery Eliminator Circuit. A circuit of which can eliminate the use of a separate power supply for the receiver. It uses the battery pack that powers the RC to power the RX. See UBEC.
An abbreviation for biplane, which is a plane that has two sets of main wing, upper and lower.
An abbreviation for Bind-n-Fly. Same as PNP. See ARF, ARTR, RTF, RTR, PNP and KIT.
Pins or clips that keep a body/shell attached to the chassis of a vehicle
Stuttering of a nitro engine when trying to accelerate
Type of electric motor where current is supplied through the mechanical sliding contacts between the motor case and the brush rotors.
Components of a brushed motor that rotates in the motor housing.
Type of motor of which doesn't use mechanical sliding contacts. Brushless motors are generally more powerful, longer lasting, and more expensive than a brushed motor.
A type of connector that is in a bulletshape (male end) that is generally used between the motor and ESC.
CA is an abbreviation for Cyanoacrylate, a type of fast setting glue.
References to the vertical angle of a car's rear and front wheels
Type of material used to construct frame or parts for RC and is considered a very light weight material that is stronger than steal, but has the ability to flex unlike steel.
A component of a glow or gas engine that mixes fuel and air before the mixture is combusted in the combustion chamber of the engine.
An abbreviation for the Center of Buoyancy. Refers to the balance point of a watercraft.
An abbreviation for Cubic Centimeter. Generally use as a measurement for small engines and items.
An abbreviation for Cyclic Collective Pitch Mixing. Three independent servos that manipulates the swashplate that allows a helicopter to move and blades to pitch.
An abbreviation for the Center of Gravity, which refers to the balance point of an aircraft. This is used to determine the best balance of the aircraft for maneuverability and stability.
The number of functions your radio is able to control (e.x. up, down, left, right, bank right, bank left, retractable landing gears, etc.). Some radio systems allow programmable collective movement which is a mixing function.
A small plastic or metal part that attaches to a linkage rod coming from a servo to the control horn of a control surface
Pair of counter-rotating rotors for a helicopter (top and bottom set) rather than the traditional single blade system. See Collective Pitch and Fixed Pitch
A rotor system for helicopter that allows the blades to move collectively. See Co-Axial Rotors and Fixed Pitch.
A small plastic or metal part that attaches to the control surface.
Refers to the moveable parts of an aircraft that changes the orientation of the aircraft in flight. Commonly used control surfaces are ailerons, elevators, rudder, and flaps.
A type of servo made of mesh wire rather than copper wire, spun around the motor. This provides quicker acceleration and deceleration resulting in a smoother response.
Part that covers the engine or motor of an aircraft.
Internal component of an engine that drives the piston up and down, transferring the motion to propelling an aircraft or the movement of a vehicle.
A gearing mechanism that spins the wheels at different rates when in rotation.
A type of servo that operates using shorter wave lengths to power the motor.
Battery wire connectors are "directly" soldered to the battery pack. See Indirect.
The force that adds resistance to movement of any object through the air.
Part that connects the differential to the axle. This allows the transfer of power from motor to differential to wheels.
Switches or knobs on a transmitter that allows the user to control the sensitivity of the controls.
An abbreviation for Electric Ducted Fan. A proportion system that propels an aircraft through the intake of air through the aircraft’s fuselage using a fan.
Rather than the traditional pull start, the starting mechanism is a replaced electronic device that turns the crankshaft in a motor. See: Pull Start
Hinged control surface on the horizontal stabilizer that allows the plane to climb or dive.
Elevator and ailerons control surface are combined, generally seen on delta-wing aircraft.
End Point Adjustment
Adjustments programmed using the transmitter to set the end points of a servo
A two part adhesive using 1:1 of resin and hardener. Generally takes 5 minutes to an hour to dry and is used to strengthen the bond at critical points in an aircraft
An abbreviation for Electronic Speed Controller. A device that controls the throttle function on an electric RC.
Adjustments toward movements of a servos travel but not proportional to stick travel.
A safety feature which sets the servos or motor to a set position when the radio system lost signal or interrupted.
The motor/engine mounting plate for a plane
When the tail of a car slides out, will be hard to control and may roll over
Fixed Landing Gear
Type of landing gear that does not rotate or pull up during flight, it stays stationary
A type of rotor system where the rotors are fixed and will not be able to pitch. See Co-Axial and Collective Pitch.
Mixing function that allows two ailerons to move in the same direction at the same time to act like flaps
Control surface that creates drag when landing an aircraft
A wired shaft used in RC watercrafts to drive the prop. This allows the shaft to move if the shaft is curved
Canoe like structure that allows an aircraft to take off and land in water acting as fixed landing gears for water surfaces.
This occurs when the fuel and air mixture is incorrect and there is too much fuel in the combustion chamber to burn
The main body of an aircraft
The sensitivity adjustment for a gyro or mix controller
A device that attaches to a glow plug that heats the glow plug to a sufficient temperature to start the combustion process in a nitro engine
Acts like a spark plug. Once the engine starts, the heat produced by the combustion keeps the coil in the glow plug burning. In turn, the glow igniter can be removed.
The relationship between the spur gear and pinion gear on an RC car
A device on helicopter that controls the RPM of the rotor head to help keep it spinning at a constant head speed.
A device that measures and maintains an RC craft's orientation
Commonly referred to as “Heading Hold” as a type of gyro that senses rotation and maintains crafts direction
Rotational speed of a helicopters rotor head measuring in RPM
A part that connects moving a control surface to stationary a counterpart
To maintain a stationary position in midair without climbing, diving, swaying or rolling
A setting on the transmitter that limits the throttle minimum even at 0% throttle
An abbreviation for International Federation of Model Auto Racing. A set of guidelines/rules for racing at the international level of competition.
Battery Wire Connectors are connected through a bullet system and are not permanently soldered to the battery pack. See Direct
A type of motor where the rotational core is held within the can
Rather than inflating RC tires with air, foam inserts are used to provide cushioning between the wheel and tire
The maneuver in which you fly upside down
Requires the builder to build the unit piece by piece. Does not come with any electronics or radio equipment. See ARF, ARTR, RTF, RTR, BNF and PNP.
An abbreviation for kilovolt. The higher the kV the lower the T and visa versa. Lower the kV means that it will have more torque compared to one with higher kV. See Turn.
An assembly that includes the wheels and struts used for landing. See Tail Dragger and Tricycle Gear.
Refers to the front edge of a wing, prop, or blade that hits/cuts the air first. See Trailing Edge.
Adding more air and lessening the fuel mixture in a carburetor for a nitro engine. See Rich.
A mechanical device between a servo and a control. Generally connected by ball links.
An abbreviation for Lithium Polymer Battery. A type of battery used to power transmitters, receiver packs, and RC crafts.
An abbreviation for Milliamp Hour, a measurement for total capacity of a battery. (The higher the mAh the longer play time)
Metal Gear Servo
Rather than the standard nylon gears that run the servo and servo arm, it is replacement with a metal alloy, which allows the servo to move faster and more accurate.
The ability to mix two or more servos with a single input.
The layout of the stick control on transmitter. MODE 1 Left Stick, Vertical/Elevator. Horizontal/Rudder Right Stick- Vertical/Throttle, Horizontal/Aileron MODE 2 Left Stick, Vertical/Throttle, Horizontal/Rudder Right Stick, Vertical/Elevator, Horizontal/Aileron MODE 3 Left Stick, Vertical/Elevator, Horizontal/Aileron Right Stick, Vertical/Throttle, Horizontal/Rudder MODE 4 Left Stick, Vertical/Throttle, Horizontal/Aileron Right Stick, Vertical/Elevator, Horizontal/Rudder. MODE 2 is the standard in the US.
A screw with a needle like end that regulates the amount of fuel entering the carburetor, also known as Low Speed Needle
An abbreviation for Nickel Cadmium. A type of battery used to power transmitters, receiver packs, and RC crafts.
An abbreviation for Nickel-Metal Hydride. A type of battery used to power transmitters, receiver packs, and RC crafts. (The same chemical compound found in AA and AAA batteries)
Short for Nitro-methane, is a type of fuel used in nitro engines.
May also be known as Nose Gear. The front landing wheel of a tricycle landing gear system, usually with steering capabilities.
Nylon Gear Servo
Servo gear made out of nylon. Gears are slower, less accurate, and prone to failure.
A type of bearing that will allow a shaft to go only in one specific direction. (See: Bearing)
A type of motor where the core is stationary and the outer shell spins around the core.
Running batteries in parallel circuit will give double the mAh. See Series Circuit.
A gear that sits on the drive shaft.
Referring to the angle of a blade or prop.
Giving the carburetor fuel before starting up a nitro engine.
Pull Start –
Rope/pully like mechanism that is used to start an engine manually. See Electric Start
Short for Plug-n-Play. An RC aircraft that comes with everything including a receiver but is missing a transmitter. It just requires a transmitter that will bind with the pre-installed receiver. See ARF, ARTR, RTF, RTR, BNF and KIT
Short for propeller. Pieces that are attached to an engine that creates forward thrust on a plane. Either made of wood, plastic, carbon fiber, or fiber glass.
Similar to linkages, it is a mechanical connection between a servo and control horn.
An abbreviation for Radio Control.
A power source for a receiver.
Short for retractable landing gear. Wheel and landing gears that retract into the wing or fuselage to reduce drag.
A type of servo that rotates in the opposite direction compared to the standard.
Vertical structure in a balsa wood plane that provides support for the wing
Add more fuel and lessen the air mixture in the carburetor for a nitro engine. See Lean.
Abbreviation for “Remotely Operated Auto Racers”. Is a set of guidelines/rules for racing and is normally used as a stamp of approval for products.
A type of aerobatic maneuver in which an aircraft rotates around an imaginary centerline
An abbreviation for Revolutions Per Minute. It counts the amount of time a blade rotates within a one minute time period. (V x kV = RPM)
An abbreviation for “Ready-to-Fly”. Minimal assemblage is required and everything is included with the aircraft. Users should be able to be airborne within approximately 10-15 minutes. *Generally want to fully charge the battery first.
An abbreviation for “Ready-to-Run”. These vehicles come with everything and is ready to run out of the box. *Generally want to fully charge the battery first.
The steering mechanism for a watercraft
Hinge mechanism that allows a plane to yaw left and right
Receiver (aka RX)
An electronic unit that relays the transmission signal from a transmitter to control the throttle and control surfaces.
This can either be related to the relevant size of an RC craft compared to the actual size of the original item or the trueness of the model compared to the original item.
Building something from scratch using plans but involves research
Planes that stay afloat in water by using floats or platoons.
Running batteries in series will double your voltage. See Parallel Circuit.
A small motor encased in a plastic or metal housing with a protruding arm that controls rods, linkages, levers or other mechanical arms on a RC. See: Analog Servo, Digital Servo, Coreless Servo, Metal Gear Servo, and Nylon Gear Servo
An attachment to the drive gear that transfers the rotational force of the servo to a control surface
A mechanism that reduces stress on a servo gear that helps prolong the servos life.
A device that softens the wheels suspension during obstacles, jumps, or sharp turns.
Computer software that simulates RC crafts for beginners to use to practice basic controls
Landing attachment for helicopters that are not in wheel form, but in “skid” form, hence the name skids.
A device to maximize a vehicle's traction by regulating how much power is transferred from the motor/engine to the drive gears
A nose on certain planes that creates a smoother airflow
A mechanical device that uses a disk attached to shafts which translate motion from the rotating drive shaft to a helicopters head. Adjustment of the swashplate is controlled by a servos cyclic pitch
An indication of how many number of turns each armature has. Higher the turn, the slower the motor. See kV.
Refers to the back portion of an aircraft that contains the vertical and horizontal stabilizers
The landing gear on a plane where there are two landing gears in the front and one at the tail. See Landing Gear and Tricycle Gear.
A type of connector that is white in color. Generally used for battery connections.
A control function on the radio that regulates the speed of the motor. Acts like a gas pedal
Amount of force a motor provides to propel an aircraft forward
The measurement of force it takes to turn a motor
Both blades of a helicopter rotating at the same level
The rear most edge of a wing, prop or blade. See Leading Edge.
Landing gear on a plane where one is located at the nose and two at the main gear. See Landing Gear and Tail Dragger
Small adjustments on the transmitter that adjusts the servo to level out the RC in a stable position.
A type of internal combustion engine that uses gas
Transmitter (aka TX)
A hand-held device the transmits signal to the receiver. May also be known as Radio Transmitter or Radio.
Similar to a BEC but rather than it being part of the ESC, a UBEC is external. See BEC.
The type of connector that is T shaped. Also known as Deans.
A measurement of electricity formally expressed as the difference of electric potential between two points of a conductor carrying a constant current of one ampere
The ability for an aircraft to adjust the direction of thrust from its main engine(s).
Covering for wheels on non-retracting or fixed landing gears. Helps create a streamline to prevent drag.
Lifting surface of a plane.
The area of which the wing is attached to the fuselage
The outer tip of the wing furthest away from the fuselage
The length of a wing from one end to the other
The horizontal left and right movement of a plane controlled by the rudder.