428 keport— 1878. 



starboard, both operations being done simultaneously, and completed in 12 

 seconds from the time of tbe order being given. In 40 seconds ship's 

 head fell off to starboard of W.S.W. 10 degrees ; in 1 minute 30 seconds 

 ship's head fell off to starboard of W.S.W. 34 degrees ; in 2 minutes 

 45 seconds ship's head fell off to starboard of W.S.W. 67 degrees, and 

 the ship's way through the water ahead was completely stopped. 



Trial No. 2 (with helm hard a-port), the ship's head being brought to 

 W.S.W., going full speed, all other conditions as in trial 1. — In 40 seconds 

 ship's head fell off to starboard of W.S.W. 12 degrees ; in 1 minute 30 

 seconds ship's head fell off to starboard of W.S.W. 23 degrees ; in 

 2 minutes 45 seconds ship's head fell off to starboard of W.S.W. 42 

 degrees, and the ship's way through the water ahead completely stopped. 



Trial No. 3 (with helm amidships), fore and main trysails taken in, 

 all other conditions as before. — In 40 seconds ship's head fell off to star- 

 board of W.S.W. 15 degrees; in 1 minute 30 seconds ship's head fell 

 off to starboard of W.S.W. 50 degrees; in 2 minutes 45 seconds ship's 

 head fell off to starboard of W.S.W. 79 degrees, and way stopped. 



Trial No. 4 (with helm hard a-starboard), being trial No. 1 repeated 

 with no canvas set, all other conditions as before. — In 40 seconds ship's 

 head fell off to starboard of W.S.W. 7 degrees; in 1 minute 30 seconds 

 ship's head fell off to starboard of W.S.W. 45 degrees; in 2 minutes 45 

 seconds ship's head fell off to starboard of W.S.W 78 degrees, and way 

 stopped. 



Trial No. 5 (with helm hard a-port), being trial No. 2 repeated with 

 no canvas set. — In 40 seconds ship's head fell off to starboard of W.S.W. 

 16 degrees ; in 1 minute 30 seconds ship's head fell off to starboard of 

 W.S.W. 34 degrees ; in 2 minutes 25 seconds ship's head fell off to star- 

 board of W.S.W. 45 degrees. At this point the engines were stopped by 

 mistake, but the ship's head appeared to be fixed at W.N.W., and she 

 had very little, if any, way through the water ahead. 



The practical result of these trials, as far as the Tabor is concerned, 

 is to show that when she is going full speed ahead in ballast trim, if her 

 engines are stopped and reversed, her head will go to starboard of the 

 course she is steering. The helm seems to have very little effect, the 

 results obtained with the helm hard a-starboard and when it was amidships 

 being very much alike. With the helm hard a-port the ship's head still 

 went to starboard, but the angle described was much smaller than that 

 made when the helm was amidships or a-starboard. I will not at present 

 trespass any further on your space, but perhaps you will allow me to add 

 that the experiments made with the Cervin steamer, with a draught of 

 22 feet, go a long way to show that, in ships of her class, similar results 

 to those detailed above will follow under similar circumstances. 



John Gillie. 

 Local Marine Board, South Shields, February 22, 1878. 



Remarks by the Committee. 



It will be seen that the results in this case are very similar to 

 those obtained in the case of the North-Western. The right-handed 

 screw only partially immersed gave the vessel a strong bias to starboard. 

 But in this case, in addition to the direct effect of the screw, the effect of 

 the wind, which was of force 4 or 5, was to bring the vessel round to 

 windward, which happened in all cases to be to starboard 



