ELECTRIC PROPULSION OF SHIPS. 155 



sels" will show that this matter was mentioned in the paper. Naturally, as an electrical man, 

 I would prefer to pin my faith to a large electric unit, particularly in the light of past 

 experiences. 



Tommander Robinson has given a very good discussion on the Diesel electric section of 

 the paper and explains the reason for using the same fuel consumption with single-screw 

 Diesel electric as exists with twin-screw Diesel direct. 



I do not believe that a voltage of 750 is too high to be used aboard ship in connection 

 with propelling machinery, as this constitutes an isolated plant and can be very easily insu- 

 lated and protected. If the engines for the electric drive are sufficiently large, so as to re- 

 duce the number of units, the voltage, of course, can also be reduced in proportion. 



President McClellan : — We will now have the paper entitled "Electric Auxiliaries 

 on Merchant Ships," by Mr. Edgar D. Dickinson, a member of the Society of Naval Archi- 

 tects and Marine Engineers. 



Mr. Dickinson then abstracted the paper. 



