Energy–Maneuverabil​ity (E–M) Plot

EMPLOT generates an energy–maneuverability (E–M) plot.

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EMPLOT plots the energy–maneuverability (E–M) characteristics of aircraft for simultaneous comparison of capabilities during sustained maneuvers.
Inputs include a structure array of aircraft properties for any number of aircraft, density altitude, and plot parameters.

Outputs may include the figure handle, a structure of common handles, and a structure array of aircraft-specific handles for command-line plot manipulation.

Furthermore, the function returns AS for maximum turn rate (i.e. maneuvering speed), AS for maximum sustainable turn rate, and AS for maximum sustainable load factor for each aircraft evaluated.

Note: Aerospace Toolbox is used only for lookups in the International Standard Atmosphere (atmosisa).

Cite As

Robert Nordlund (2026). Energy–Maneuverability (E–M) Plot (https://www.mathworks.com/matlabcentral/fileexchange/42632-energy-maneuverability-e-m-plot), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.1.0.0

The emplot.m function has been updated to include an argument for airspeed units (e.g. 'KEAS', 'KTAS', 'M'). Examples are included in the updated emplot_test.m function. Reference case #01132591 if contour and clabel are fixed in future releases.

1.0.0.0