CONTENTS--The hull of the boat—Its flash boiler and twin-cylinder, high-speed steam engine.
The model described in this booklet is the result of considerable experimentation, both in the making of various types of hulls and power plant equipment. The craft was really made to bring the model speed boat record from England to America, and in tests "Elmara" has shown a speed slightly in excess of 30 miles per hour. The English record held by the "Evil Spirit" is 26.7 miles per hour. The dimensions of the hull are as follows: Length 39.37 inches, beam 77/8 inches, step 11/4 inches high, sides forward of the step 41/4 inches high, sides directly back of the step, 3 inches high. The distance from the bow to the step is 171/4 inches. The weight of the complete hull is 2 pounds 11/2 ounces. Only two materials are used in the construction of the hull—aluminum and mahogany. Mahogany is a very strong wood, will take a smooth finish and is more or less unaffected by moisture.
