The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
an aerobatic figure that consists of a closed curve in a vertical plane. It is named after P. N. Nesterov, who first performed the figure on Aug. 27, 1913.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.