March I. t88§.J 



FOREST AN© STREAM. 



PKWW BMM^WBWWW*- 



exliil. 

 amount 



HE COLT DISC ENGINE FOR YACHTS, 

 itroduction of S 

 past few years added a new i 

 iting sport., and ban been the 

 )f ••nlci-prisinc insviiuitj and 



inriiti.iii.-.l ,-ln-s will .ilu.,y- lin. I -..in, advocate in n 



allusion I,, ih, in is.'llii'ivf..,re. not out of place. 



Allowing I'm tin- ,-.,iii].,anitu.ly auall advantages or disadvan- 

 tages due to more or less perf< et models, the speed of a boat may be 

 sajd to depend upon Hi- lokni.Mi of the available power to the dis- 

 placement or weigh t of the boat and its content!!. Thus in order to 

 obtain increased speed, either the weight of both hull and machin- 

 ery must be reduced or the capacity of boiler and engine increased. 



