Nautical Research Journal 269


145. T e fi nished rudder ready for installation.


147. T e completed Asdic dome glued to its well under the ship. Asdic dome


T is device hung about three feet under the ship, sending and receiving acoustic impulses to locate submerged U-boats. T e early model 123A installed in Chicoutimi used a fi xed dome with a manually rotated transducer inside. My plans have an outline drawing, and I followed that to make mine from nested styrene tubes, fi led to shape. Aſt er painting it fl at black the dome was glued into its well in the bow that was built in Part 1. (Figure 147)


146. T e bronzed propeller and completed rudder mounted on the ship. T e rudder is raked 6 degrees aſt per the plans.


glued the halves to the profi le. (Figure 142) Next I added 0.125-inch square packing pieces to the front edge of the profi le, necessary for the sheathing to conform to the correct shape. Now the fi les came out to taper and shape the assembly from top to bottom. I cut oversized shapes from 0.015-inch sheet for the sheathing and glued them to the shaped packing pieces. (Figure 143) Aſt er letting the glue cure overnight, the sheets were wrapped and glued to the tube, bottom and aſt edges of the profi le. T e sheathing could not conform to the rounded rudder top, so I carved more packing pieces to fi t. (Figure 144) Aſt er fi nal shaping, gap fi lling, and sanding, the rudder was painted fl at black, (Figure 145) then it and the propeller were mounted on the ship. (Figure 146)


Life raſt s


T e standard lifesaving equipment on Canadian corvettes included four Carley raſt s carried on skids midships and aſt . Later in 1944 the port dinghy was replaced with two additional raſt s, and many


148. One of the four raſt s and gratings roughed out.


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