Boeing Model 923, PGH-2 ("patrol gunboat hydrofoil") Tucumcari was launched in 1967. The 57.5-ton (58.4-tonne), 74.6-foot-long (22.7-meter-long) vessel was made of aluminum with foils and struts of corrosion-resistant steel. It used a waterjet propulsion system and was powered by a 3,200-horsepower Rolls-Royce turbine engine.

Tucumcari served with the U.S. Navy in Vietnam. Later, in August 1970, it was assigned to the Atlantic, where Tucumcari demonstrated its capabilities to eight NATO countries. In November 1972, while operating foil borne at night in the Caribbean, Tucumcari ran aground. No crew were seriously injured, but Tucumcari sustained enough damage while being removed from the reef to keep it from sailing again and was stricken from the record of active Navy vessels.