The Imperial 1st Fleet consisted of many warships. All of which required hundreds of thousands of tons of iron. Just the production of steel, the empire could no longer be supported. Moreover, the construction period is extended. Zhao Lingxin had already estimated that summoning directly from the system was extremely worthwhile. No need to waste at least 6-7 years in production. Including a lot of construction resources.
The advantages of direct summoning warships are not all that. In the past, warships were collecting all cutting-edge technologies and technologies, including metallurgy, communication, weapons, engines, and power.
These warships will help the empire to research them. Shorten the scientific research period. Giving rise to new technology.