It is easy to see why Customs came back for more three years later. This time, they ordered three Magnum 40s with General Motors 6V92 diesels coupled to Arneson Drives. These were also enclosed pilothouse versions, and in a letter from the Department of the Treasury, Edward R. Callahan commented: “After four months of operation, these vessels have proven that the quality we have come to expect from Magnum in our previous purchases has not diminished. The fine workmanship, attention to detail, and obvious pride of your employees makes the Magnum one of the finest high performance offshore patrol craft in existence today.”
With this reputation, it is not difficult to see why the major defense contractor, McDonnell Douglas, chose a Magnum to market the world’s most advanced weapon system: the Nighthawk and the M-230 30 mm Cannon. They were looking for a craft, which epitomized top quality as well as endurance, reliability, ruggedness, and maximum operational capabilities. They chose MAGNUM.