METHOD TO DETERMINE CENTRE OF MASS OF AIRCRAFT AND DEVICE FOR REALISATION Russian patent published in 2015 - IPC G01G19/07 

FIELD: instrumentation.

SUBSTANCE: invention relates to the field of aviation instrument-making and may fid application for determination of the centre of mass of an aircraft in flight. They measure current angles of pitch, apparent linear acceleration, angular speed of the aircraft relative to its centre of mass, absolute acceleration in an arbitrary point, use of the value of acceleration due to gravity, calculated in real-time mode, and on the basis of the received data combination, determination of centre of mass. At the same time they measure centripetal accelerations relative to the centre of mass in two fixed points, arranged along the longitudinal axis of the aircraft at the available distance from each other, by means of accelerometers installed in these points, one in the tail part, the other - in the head parts of the hull. Determination of the centre of mass is carried out in the stable flight mode during bank-to-bank reversal. The device comprises two accelerometers 1, 2, an on-board navigation system 3, a subtraction device 4, two devices 5, 6 of raising to a power, three summators 7, 8 and 9, two multipliers 10, 12, a generator of a signal corresponding to the distance between accelerometers, a unit 11 of sine determination, two scaling devices 13, 14 and a divider 15, the outlet of which is the outlet of the device.

EFFECT: increased accuracy.

2 cl, 1 dwg