- spiral divergence
- Космонавтика: спиральная неустойчивость
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
divergence — i. A static instability due to the aerodynamic loads which deform the control surface or body being greater than the elastic restoring forces. ii. A situation in which a control application by the pilot results in uncommanded and/or undesirable… … Aviation dictionary
Fermat's spiral — (also known as a parabolic spiral) follows the equation:r = pm heta^{1/2},in polar coordinates (the more general Fermat s spiral follows r 2 = a 2 theta; .) It is a type of Archimedean spiral. [mathworld|urlname=FermatsSpiral |title=Fermat… … Wikipedia
lateral divergence — A divergence in the yaw, which may result in going into a spin or a spiral descent with an increasing rate of turn. See also divergence … Aviation dictionary
Dutch roll — is a type of aircraft motion, consisting of an out of phase combination of tail wagging and rocking from side to side. This yaw roll coupling is one of the basic flight dynamic modes (others include phugoid, short period, and spiral divergence).… … Wikipedia
MIT Daedalus — a.k.a. Michelob Light Eagle human powered aircraft in flight … Wikipedia
Phugoid — A phugoid (pronounced IPA|/fjugod/) is an aircraft motion where the vehicle pitches up and climbs, and then pitches down and descends, accompanied by speeding up and slowing down as it goes uphill and downhill. This is one of the basic flight… … Wikipedia
Heritage Universe — The Heritage Universe is a fictional setting created by Charles Sheffield for a series of science fiction novels. The date of the setting is several thousand years into the future, during a time when human space colonization has filled much of… … Wikipedia
Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… … Universalium
physical science, principles of — Introduction the procedures and concepts employed by those who study the inorganic world. physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… … Universalium
Aircraft dynamic modes — Source: Flight dynamicsThe dynamic stability of a vehicle denotes the complete study of the motion occurring after the vehicle has been disturbed. If the aircraft returns to equilibrium without overshoot, the motion is a simple subsidence. If the … Wikipedia
Polar coordinate system — Points in the polar coordinate system with pole O and polar axis L. In green, the point with radial coordinate 3 and angular coordinate 60 … Wikipedia