Research leading to the development of a scramjet engine is worthwhile. Commercial aircraft incorporating such an engine could cross the Pacific in as little as two hours. This would relieve the fatigue of flights from New York to Tokyo. Also, such an engine could power future orbiting spacecraft.

The following arguments were abstracted from newspaper articles, editorials, and letters to the editor. Use the method presented in this section to construct argument patterns. If a statement is redundant or plays no role in the argument, do not include it in the pattern.