Identify features of the economic business cycle. 1  Business cycles are identified as having four distinct phases: expansion, peak, contraction, and trough.  Business cycle fluctuations occur around a long-term growth trend and are usually measured by considering the growth rate of real gross domestic product.
Abstract: Rate of turn indicator for a nautical vessel, aircraft and the like indicating the rate of turn or swing in units such as degrees per unit of time from a particular course of travel.. Field of the Invention. The present invention relates to a navigational aid or nautical instrument, and more particularly, pertains to a rate of turn indicator for indicating the rate of turn from a course of travel for a vessel or other like vehicle.
FIG. 2 is a view in perspective of a ship with a rate-of-turn sensor according to the present invention. FIG. 3 is a block diagram of an arrangement according to the invention. FIG. 4 is a front view of a support for a rate sensor according to the invention.FIG. 5 is an end view of the support. rate-of-turn sensor, said sensor being mounted in a fixed position relative to the ship's structure with its response axis parallel to the vertical axis of the ship and generating a signal representative of the rate-of-turn of the ship,