Kavrayskiy VII projection
The Kavrayskiy VII projection is a map projection invented by Vladimir V. Kavrayskiy in 1939 for use as a general purpose pseudocylindrical projection. Like the Robinson projection, it is a compromise intended to produce good quality maps with low distortion overall. It scores well in that respect compared to other popular projections, such as the Winkel Tripel, despite straight, evenly-spaced parallels and a simple formulation. It has been used in the former Soviet Union but is almost unknown elsewhere.
The projection is defined as:
 See also
- Flattening the Earth: Two Thousand Years of Map Projections, John P. Snyder, 1993, ISBN 0-226-76747-7.
- Large-Scale Distortions in Map Projections, 2007, David M. Goldberg & J. Richard Gott III, 2007, V42 N4.
- Curvature in Map Projections, quantification of overall distortion in projections.