Six projections were presented in 1906 by Max Eckert in which all the poles are lines half as long as the Equator, and all parallels are straight lines parallel to each other. In Eckert I, a great amount of distortion at the Equator is due to the break at the Equator.

Construction | Pseudocylinder |

Property | Neither conformal nor equal-area |

Meridians | Meridians are converging straight lines that are equally spaced and broken at the Equator. |

Parallels | Parallels are perpendicular to the central meridian, equally spaced straight parallel lines. |

Graticule spacing | See Meridians and Parallels. Poles are lines one half the length of the Equator. Symmetry exists about the central meridian or the Equator. |

Linear scale | Scale is true along latitudes 47° 10’ N and S. Scale is constant at any latitude (and latitude of opposite sign) and any meridian. |

Uses | To show a straight-line graticule. |

Source: Snyder and Voxland, 1989

Eckert I Projection

Source: Snyder and Voxland, 1989