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Incidence, Sideslip, & Airspeed

Calculate incidence, sideslip, and airspeed

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  • Aerospace Blockset / Flight Parameters

  • Incidence, Sideslip, & Airspeed block

Description

The Incidence, Sideslip, & Airspeed block calculates the angles between the velocity vector and the body, and also the total airspeed from the velocity components in the body-fixed coordinate frame. For the equations used in the calculation, see Algorithms.

Ports

Input

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Velocity of the body, specified as a three-element vector, resolved into the body-fixed coordinate frame.

Data Types: double

Output

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Incidence angle, returned as a scalar, in radians.

Data Types: double

Sideslip angle, returned as a scalar, in radians.

Data Types: double

Airspeed of the body, returned as a scalar.

Data Types: double

Algorithms

To calculate the angles between the velocity vector and the body, and the total airspeed, the block uses these equations:

α=tan1(wu)

β=sin1(vV)=tan1(vu2+w2)

The block uses the tan-1 formulation for β to prevent division by 0.

V=u2+v2+w2

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced before R2006a

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