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Another English/Metric "Spacecraft" Problem

Posted by Hemos on from the oh-the-joys-of-system-management dept.

SuperDry writes "There's been another spacecraft failure that's been attributed to an English/Metric units problem, this time at Tokyo Disneyland's Space Mountain. An axle broke on a "spacecraft" (a.k.a. roller coaster train) mid-ride, causing it to derail (nobody was hurt). The final investigation report has been released, and the root cause has been determined to be a part being the wrong size due to a conversion of the master plans in 1995 from English units to Metric units. In 2002, new axles were mistakenly ordered using the pre-1995 English specifications instead of the current Metric specifications. Apparently size does matter, even if it's only a 0.86mm difference."

3 of 748 comments (clear)

  1. English units? by Anonymous Coward · · Score: 5, Insightful

    I don't know about you, but us English call the measurement system the Imperial system. Isn't the American version slightly different, in respect to fluid units, etc?

  2. The US needs to catch up by Listen+Up · · Score: 5, Insightful

    The US needs to catch up to the rest of the world. The entire world uses Metric people. And it makes an infinite amount more sense to use Metric than the US system. If we don't, trade will continue to suffer as well as accidents such as this one.

  3. Re:Who's at fault here, really? by Rhubarb+Crumble · · Score: 5, Insightful
    Hey, I like the metric system. I really do. But sticking to the english system has never caused an aircraft to run out of fuel at altitude, a roller coaster to break, or a spacecraft to crash. The zeal to enforce metric conversion, however, has caused all of those things.

    Hey, I like the imperial/english/mediaeval/whatever system. I really do. But sticking to the metric system has never caused an aircraft to run out of fuel at altitude, a roller coaster to break, or a spacecraft to crash. The zeal to make specifications understandable to people who think in terms of the size of kings' thumbs and the area of land that can be ploughed by an ox in a morning, however, has caused all of those things.

    The simplest argument in favour of the metric system is that it's base-10... (or base-10^3 if you want to be picky...) Of course once all our civilisation is outsourced to India and China I guess we'd better get used to counting in 10^4 or 10^5... (wans and lakhs)