Science and Education Publishing Journal of Automation and Control 2 3 2014 11 13 Model of Stabilization of Helicopter in Hover Mode over a Given Point Object under Destabilizing Action of Weather Conditions 86 90 EN Vasiliy Kazak Dmitry Shevchuk Nataliia Tymoshenko National Aviation University, Kiev, Ukraine AUTOMATION2014234 10.12691/automation-2-3-4 2014 10 23 2014 11 10 2014 11 13 The design problem of the high precision stabilizer for hovering of the helicopter about the point object as a part of the automatic control system (ACS) is considered. Here we substantiate method and models for hover mode of helicopter as well as measurements of parameters of this flight mode that requires smaller volume of calculation and preserves high speed and accuracy of stabilization. Also we investigate reduction of number of state vectors and volume of calculation via usage of extended Kalman filter (EKF) and standard sensors.