AIM through the periscope sight of this submarine, fire a torpedo, and watch the doomed enemy freighter explode!
The torpedo tube is a slot 15/32" wide, running from the bow to within 11/4" of the stern of the submarine. A hole large enough to take a 3/16" dowel loosely is drilled through the stern. Assemble the torpedo-firing mechanism from a 3/16" dowel, a 3/8" dowel for the torpedo ram, and a cocking knob. The torpedo-release catch pivots on a nail driven across the slot, with two wooden beads for side bearings. Cement a mirror
9/16" square in a slot cut at a 45-deg. angle in the conning-tower base; cover this with a celluloid window marked as shown.
Make the freighter's superstructure from a frame of "1/4" strips with a cardboard top. Use a 2" section of broomstick for the funnel. The exploding mechanism is a wooden bar, loosely pivoted on a nail and operated by a tension spring. A headless nail holds the bar under a projecting strip of metal. A second strip extends from the bar down the port side, where it constitutes a target for the torpedo.
Entering through a small door in the side, J. L. Finch, of Patchogue, N. Y., drives his curious ice boat, pictured above, from within a fixed, fabric-covered airfoil that serves as a sail for the craft. Instead of controlling his ice racer by manipulating a sail,
Finch turns the forward movable runners on which the boat rides to get it into the most advantageous position in the prevailing wind. Windows are built into the leading edge of the airplane-wing sail. Finch calls his strange craft an "ice glider."