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Incidence & Airspeed

Calculate incidence and airspeed

Library

Flight Parameters

Description

The Incidence & Airspeed block supports the 3DoF equations of motion model by calculating the angle between the velocity vector and the body, and also the total airspeed from the velocity components in the body-fixed coordinate frame.

α=atan(wu)V=u2+w2

Inputs and Outputs

InputDimension TypeDescription

First

Two-element vector Contains the velocity of the body resolved into the body-fixed coordinate frame.

OutputDimension TypeDescription

First

 Contains the incidence angle, in radians.

Second

 Contains the airspeed of the body.

Examples

See the Aerodynamics & Equations of Motion subsystem of the aeroblk_guidance_airframe model for examples of this block.

Introduced before R2006a

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