Abstract: An apparatus for controlling the application of warp sections during warping, wherein a winding of predetermined length of warp threads and application height should be exposed to a warping operation wherein successive threads withdrawn from the bobbins of a bobbin creel and each delivered by means of a stop motion, thread brake to a warping reed and at that location formed into a warp section upon the winding drum of a winding machine. According to the invention there are provided means for calculating at any point in time a theoretical, momentary reference-application of the wound-up warp sections on the basis of fixed data inherent to the material undergoing warping and the number of revolutions of the winding drum.