4 ms·

If anyone else is curious - the "US Survey Foot" was 609nm larger than the US International Foot. Or, 0.0002% Larger.

• whatshisface 7y ago
  It would take 41,708 feet for the error to add up to one inch.
  • twic 7y ago
    Which feet?
    • oneplane 7y ago
      The non-survey one
    • killjoywashere 7y ago
      The left ones. Sorry, I'll show myself out.