Contact Us | Sitemap | Home

 RC Airplane

 Parts of RC Airplane, Landing Gear and Nose Gear, RC Airplane Control Surfaces, Ailerons, Flaps, Elevator, Rudder


RC Airplane Guide



 RC Airplane Design Topics


 How Aspect Ratio affects the Stall Angle of Attack (AOA) of RC Airplane


 How Aspect Ratio affects the Wing Lift Coefficient of RC Airplane


 RC Airplane Articles























Parts of RC Airplane

The parts of the RC Airplane include,


Ailerons are roll-control control surfaces of the RC Airplanes. Ailerons provide roll by moving in opposite direction to each other. When one aileron moves down the other moves up thus providing more lift on one side as oppose to the other causing the RC Airplane to roll. Ailerons are at the trailing edge of RC Airplane wing and towards the wing tips.




Flaps provide additional lift to the RC Airplane by increasing the maximum lift coefficient of RC Airplanes. The flaps can be used to increase the lift during landing and take-off to better take advantage of the ground effect. The flaps move simultaneously. When both flaps move down it is known as flaps-down and increases lift of the wing. When flaps move up it is known as flaps-up. Sometimes, flaps are designed so that they only move down or come to the neutral position and not move up.


Elevators are the pitch-control control surfaces of the RC Airplanes. Elevators provide pitch control by moving either up or down simultaneously causing the airplane to pitch about the center of gravity of RC Airplane. When elevator is moved up the nose of the airplane rises and is known as pitch up. When the elevator is moved down the nose of the RC Airplane moves down and is known as pitch down.



Rudder is the yaw-control control surface of the RC Airplanes. Rudder provides yaw control by moving to either side be it left or right. The rudder yaws the RC Airplane about the center of gravity cg of RC Airplane causing the RC Airplane nose to move right or to move left. A right rudder maneuver causes the RC Airplane to move to the right. A left rudder maneuver causes the RC Airplane to the left.

Nose Gear

Nose gear is a member of the landing gear set on a typical conventional RC Airplane configuration. The nose gear is used to steer the RC Airplane nose to move RC Airplane right or left when on the ground. The servo which connects the nose gear is also connected to the rudder. So, the direction in which the rudder moves the nose gear also follows that direction. During takeoff the nose gear is used to steer the RC Airplane so that RC Airplane is centered to the runway. Without a steerable nose gear it is not possible to maneuver/ move on the ground without manually moving it. With a steerable nose gear the RC Airplane can be moved on the ground.


Main Gear or Landing Gear

The main gear or landing gear are the main landing wheels of the RC Airplanes which takes the entire RC Airplane. Main gear have to be strong and yet flexible enough to provide safe takeoff and landing to RC Airplane. A rigid inflexible landing gear can damage the RC Airplane structure as the entire weight / reaction force would be carried by the fuselage. So, in order to avoid this landing gears are designed to be strong yet flexible enough so they bend slightly during landing or takeoff to disperse the load and provides safe and smooth landing. Landing gear or Main gears consist of a pair of wheels which are generally larger in diameter as compared to the nose gear wheel. The landing gear wheels are not steerable.