CONTENTS--Building the hull and superstructure—The radio control mechanism—Electric power plant—Special two-point relay—Automatic apparatus.
The hull of the submarine is nearly eight feet in length and, with machinery and ballast installed, the veight is a good 175 pounds without water ballast. The hull is patterned somewhat after the Lake ship-section submersible, but the characteristic design is carried a step fai-ther, giving E122 good surface riding qualities rather than submerged speed. The bow and deck lines of the model resemble somewhat those of a torpedo boat-destroyer submerged to such an extent that her deck is almost awash. This design gives ample room for machinery and controls, and it affords space in the lower hull for ballast tanks by means of which the craft may be partially submerged while at rest.
