"We better not mention the Mars landing err arrival. "Did you say inches, Sir?!" Go the nerds..."
Every one of the spacecraft systems that successfully landed men on the lunar surface and returned them safely to Earth was designed using inches and pounds. The Viking probes that were first to safely land on the surface of Mars, as well as the rockets that launched them, were also designed using inches and pounds.
I just laugh every time I hear claims of how superior the metric system supposedly is. History proves otherwise.
