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Incidence, Sideslip, & Airspeed

Calculate incidence, sideslip, and airspeed

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  • 李brary:

  • Aerospace Blockset / Flight Parameters

  • Incidence, Sideslip, & Airspeed block

Description

TheIncidence, Sideslip, & Airspeedblock 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, seeAlgorithms.

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

Model Examples

Fly the De Havilland Beaver

Fly the De Havilland Beaver

How to model the De Havilland Beaver using Simulink® and Aerospace Blockset™ software. It also shows how to use a pilot's joystick to fly the De Havilland Beaver. This model has been color-coded to aid in locating Aerospace Blockset blocks. The red blocks are Aerospace Blockset blocks, the orange blocks are subsystems containing additional Aerospace Blockset blocks, and the white blocks are Simulink blocks.
Open Model

Algorithms

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

α = tan − 1 ( w u )

β = sin − 1 ( v V ) = tan − 1 ( v u 2 + w 2 )

The block uses thetan-1formulation for β to prevent division by0.

V = u 2 + v 2 + w 2

Extended Capabilities

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

Version History

Introduced before R2006a

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See Also

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