Turn Coordinator

Display measurements on turn coordinator and inclinometer

  • Library:
  • Aerospace Blockset / Flight Instruments


The Turn Coordinator block displays measurements on a turn coordinator and inclinometer. These measurements help determine if the turn is coordinated, slipped, or skidded. The turn is a coordinated turn that combines the rolling and yawing of a turn. The turn indicator signal turns the airplane in the gauge, in degrees. The inclinometer turns the ball in the gauge, in degrees. Together, these signals show the slip and skid of an airplane as it turns. Both values cannot exceed +/–15 degrees. If values exceed 15 degrees, the gauge stays fixed at the minimum or maximum value.

Combine the turn indicator and inclinometer signals in a Mux block in order:

  1. Turn indicator

  2. Inclinometer


To facilitate understanding and debugging your model, you can modify instrument block connections in your model during normal and accelerator mode simulations.


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Connect to 2-element signal for display, selected from a list of signal names. The 2-element signal consists of turn indicator and inclinometer signals combined in a Mux block, in degrees. You connect and display this combined signal. This input cannot be a bus signal.

To view the data from a signal, select a signal in the model. The signal appears in the Connection table. Select the option button next to the signal you want to display. Click Apply to connect the signal.

The table has a row for the signal connected to the block. If there are no signals selected in the model, or the block is not connected to any signals, the table is empty.

Block label, displayed at the top or bottom of the block, or hidden.

  • Top

    Show label at the top of the block.

  • Bottom

    Show label at the bottom of the block.

  • Hide

    Do not show the label or instructional text when the block is not connected.

Programmatic Use

Block Parameter: LabelPosition
Type: character vector
Values: 'Top' | 'Bottom' | 'Hide'
Default: 'Top'

Introduced in R2016a