Tak nakonec je to elektromechanicky pocitac z protiletadloveho tanku ZSU-23-4, bral informace z radaru (coz je ta parabola) a gyroskopu o cili a pocital ruzne balisticke uhly, dobu letu projektilu a podobne hovadinky.
The ZSU-23-4 has an 1A7 SRP electro-mechanical fire solution calculator, weighing 180 kg, that occupies all of the space before the Commander. It contains 60 electric motors driving 110 axles over different potentiometers, shafts, rods, cams, gears and linkages to mechanically calculate ammunition flight time till impact, elevation lead angle, and azimuth lead angle using the target parameters received from the 1RL33 RPK-2 (gun dish) radar, and the correction angle received from the GAG (gyroscope) unit.