After detailed research, Hatta grew 99 % certain that the plans he had drawn up would work, but he nevertheless asked the Office of the Governor-General to send him on a research and observation trip to America, where he could purchase the expensive heavy equipment needed for the project.
八田與一在詳細研究後，雖已有 99 % 的把握，仍極力向總督府爭取實地到美國考察，並採購工程所需的昂貴重型機械。