The hull of the Q.E.D. is built of white oak planking. The superstructure, pilot house and interior partitions are of plywood. Plywood beams have been gauged out to reduce weight. The boat has a 4 1/2-foot draft and a cruising speed of about 16 knots. Power is supplied by a Vimalert oil engine developing 800 hp. at 2,100 rpm. Two Capitol-Wright engines, later to be replaced by Wright airplane engines, will give a maximum speed of 35 knots. Engines are rubber mounted on light plywood frames. A V8 engine will supply power for auxiliary purposes.
The pilot house is equipped with electric controls coupled for remote control. Roof of the house may be raised for ventilation. A trap in the roof over the covered boat deck may be raised for loading purposes.
The Q.E.D. is equipped with two cabins fore and two aft, a library and stateroom, and has crew’s quarters for six.
The boat has an off-center mast that is collapsible, an automatic pilot and compass, special stabilizer and anchor. No smokestack protrudes above the pilot house. A ring of louvres extending a foot above the roof will direct the air current upwards, carrying the engine exhaust with it.
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