Following the competition, contracts were placed for construction of boats: May 25, 1939 to Higgins Industries for two boats (PT5 and PT6) of the Sparkman and Stephens design, scaled up to an overall length of 81 feet; June 8, 1939 to Fogal Boat Yard (PT-1 and PT-2) and Fisher Boat Works (PT-3 and PT-4) for the Crouch design; to the Philadelphia Navy Yard (PT-7, PT-8) for 81-foot boats designed by the Bureau of Ships. These last two boats were constructed mainly out of aluminum and had 4 engines.