![The choice is clear. [500x502 - 476KB]](https://pic8.co/sh/Sa8TvT.png){kind=link}
The imperial system was used to design all of the spacecraft in the apollo program. Also engineers know how to convert. Their slide rules and their precision instruments and guage blocks were all in imperial units in the 1960s.
The imperial system was used to design all of the spacecraft in the apollo program. Also engineers know how to convert. Their slide rules and their precision instruments and guage blocks were all in imperial units in the 1960s.
(post is archived)