A total of 9 runs were made as listed in Table 1. For runs 1, 2, 3, 8, and 9, the boat was run at constant power until conditions were stabilized, then the readings were taken. For runs 4, 5, 6, and 7 the boat was essentially stopped for several minutes until the drogue sank to a considerable depth. Then the engines were accelerated to a high rpm and held at that power until the first 10 to 20 elements of the drogue began to surface on the top of the water. For runs 8 and 9, a 75-foot length of the drogue, which included 45 elements, was removed. This left 45 drogue elements
The measured drag loads are shown on Table 1 and plotted on Figure 19. Since the boat was pitching and rolling, a maximum and average load is shown. Also in some instances the boat yawed and the drogue was not directly astern.