**Spin and Spin Recovery**

Dragan Cvetkovi´c1, Duško Radakovi´c2, Caslav Mitrovi´ ˇ c3 and Aleksandar Bengin<sup>3</sup> <sup>1</sup>*University Singidunum, Belgrade* <sup>2</sup>*College of Professional Studies "Belgrade Politehnica", Belgrade* <sup>3</sup>*Faculty of Mechanical Engineering, Belgrade University Serbia*

## **1. Introduction**

208 Mechanical Engineering

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> Spin is a very complex movement of an aircraft. It is, in fact, a curvilinear unsteady flight regime, where the rotation of the aircraft is followed by simultaneous rotation of linear movements in the direction of all three axes, i.e. it is a movement with six degrees of freedom. As a result, there are no fully developed and accurate analytical methods for this type of problem.
