50 



solenoids of the starting relays and this was undoubtedly the reason 

 for failure to function. 



The original source of supply for the sonic was taken from the 

 75-kilowatt distributing board. With the starting box burned out, 

 it was out of the question to use the 75-kilowatt machine as the ship's 

 supply was taken from that board. As it was imperative that the 

 sonic be started to complete the tests, two jumper wires were put 

 across the starting box and the source of supply taken from the 

 10-kilowatt machine. By starting the 10-kilowatt machine at 

 voltage and building both the generator and sonic motor-generator 

 up to voltage and speed simultaneously, the sonic was placed in 

 operation. This method of starting was found to be satisfactory in 

 the existing emergency and the tests were completed. 



It is recommended that a new starter of the remote control type 

 be furnished the Tampa. 



SOUNDINGS 



Attention is invited to Charts Nos. 1 and 2. These soundings 

 were taken at regular intervals. The sonic depth finder was checked 

 for depth by hand lead and sounding machine and found to agree 

 very closely to both up to the limits of the sounding machine. The 

 positions on the chart were checked as often as it was possible to 

 take sights. During the clear weather, sights were taken every 

 two hours and lines of position from stars were determined when- 

 ever possible. 



