A Chief of Naval Operations (CNO) PT Boat Conference convened in May 1941 to discuss future PT characteristics. All PTs prior to the Elcos had been found defective, and it was probable the extended Elco would not be an improvement. This conference, including representatives from BuShips, BuOrd, MTBRONs, Interior Control Board, and CNO, recommended a series of comparative tests to evaluate what turned out to be five new designs of motor torpedo boats. The conference strongly recommended that no more Elco 77-footers be ordered until the tests had shown that they were indeed satisfactory.