Therefore, the Chamberlin trimetric projection is not equidistant, not conformal, inequivalent, and not azimuthal. It is not used in situations where absolute accuracy is required. However, it does produce a compromise image which minimizes distortions in area, direction, and distance and therefore gives an excellent overall sense of the area being mapped. For this reason, the projection is popular for large areas in atlases, especially of triangular regions. The National Geographic Society routinely uses this projection for representations of Africa, South America, and Greenland, all of which are notorious for being misrepresented (in area, or distances) in other common projections.
The Chamberlin trimetric projection is inappropriate for mapping the entire sphere.