Futaba 6J F4103 Data Sheet

 

@ AFR (Adjustable function rate/high rate) 

Adjusts the total travel in each direction of a particular function, such as ailerons. For example, used to 
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elevons, or other programming.

 

@ Aileron Differential 

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the drooped aileron which causes a model to yaw with aileron input.

 

@ Ailerons 

Hinged control surfaces located on the trailing edge of the wing, one on each side, which provide control of 
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roll or turn, the right-hand aileron is moved upward and the left-hand aileron downward, and vice versa for 
a left roll or turn.

 

@ Airfoil 

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For helis: The rotor disk is the effective wing, and airfoil refers to the shape of the blades.

 

@ Amphibian 

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type of aircraft. An amphibian can land on water and then extend the landing gear to allow it to pull up onto 
the shore. Many seaplane bases had ramps to allow the airplanes to pull up onto dry land parking areas.

 

@ Angle of attack 

The angle that the wing penetrates the air. As the angle of attack increases so does lift, up to a point (and 
drag).

 

@ Area 

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area of a tapered wing is the wingspan multiplied by the average chord.

 

@ Aspect Ratio 

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short aspect ratio (short wings) is better for maneuvering, since it allows a high roll rate. Short wings are 
also stronger than long wings. Gliders use high-aspect ratio wings (long, skinny wings) because they are 
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@ Autorotation 

The ability of a rotary-wing aircraft to land safely without engine power. This maneuver uses the stored 
energy in the rotor blades to produce lift at the end of decent, allowing the model to land safely.