The Boeing built hydrofoils named after Tucumcari, New Mexico, the design basis for the technology used in the subsequent United States Pegasus-class patrol boats and the Jet-foil ferries. Its unique feature was a water-jet propulsion and a computer-controlled fully submerged foil configuration of one foil at the bow and foils on the port and starboard sides. The Tucumcari was one of two prototype boats contracted by the Navy for the purpose of evaluating the latest hydrofoil technology with a fast top speed of 50 knots. The second boat was the rival Grumman built USS Flagstaff. It's interesting how much technical information is given in the documentary. A modern documentary would just be endlessly repeating permutations of "it go real fast" "it beat our enemies". I love informational videos from this time period. They go into just the right level of detail, recognizing that their audience are not experts on the topic, nor are they idiots incapable of comprehending it. These videos feel as if they were made to educate at least as much as they were to entertain.