ON THE RESISTANCE OF WATER. 



153 



98 



99 



100 



lOI 



102, 



1-187 



2-187 I 



13 



12 



12 



8 



S 



13 



II 



14 



8 



13 

 11-5 



13 



1-92 1-92 



2-o8| 2-27 



2-08 1-78 



3"I2 3-12 



3-12 312 



^ 



1-92 

 2-17 



1-93 



3-12 

 3-12 



Position 8, h. 

 Area of iminei-sed section and weight 

 of model tl!? sjune us in posilioii 7. 



< X 



[3"'2 I J 



Hemarks on Model A. 



In Position 1 the model at high speeds raised -waves before and behind. 



In Position 2 higher speeds -were impracticable, the stern lifting itself out 

 of the -water ; in fact, -with the propelling -weight -687 lb., there -was a little 

 -wave propagated. In this position the model -was exactly half trim, there 

 being ample stability in this position. 



In Position 3, with the last propelling weight, a beautiful -wave -was 

 formed, also -with the last -weight but one, but not so large. 



In Position 4 further experiments -were fruitless. Its path or course 

 -was so irregular that taking down quantities -was impossible. It may, how- 

 ever, be remarked, comparing Position No. 3 -with Position No. 4, that the 

 latter has more resistance than the former. 



In Position 5, with a propelling -weight of -687 lb., a wave -was formed as 

 shown in the sketch, and these waves became larger as the propelling weight 

 increased. 



In Position 6 further experiments were abandoned, the phenomena being 

 the same as in Position No. 2. 



