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 Forum: Campaigning   Topic: Speedo Accuracy

 Post subject: Re: Speedo Accuracy
Posted: Mon Oct 12, 2009 18:43 

Replies: 23
Views: 68679


Speedos in modern mass-produced "type" approved cars are allowed to over read by 10% plus 2.5MPH. As has been said, they are not allowed to UNDER rear AT ALL. There's an EC Directive about it, 75/443/EC. The ship's depth sounder or aircraft altimeter analogy would therefore be that ships ...

 Forum: Campaigning   Topic: Speedo Accuracy

 Post subject: Re: Speedo Accuracy
Posted: Mon Oct 12, 2009 18:34 

Replies: 23
Views: 68679


I don't want to argue at cross purposes botach, it is quite possible that I am being a bit pedantic about what calibration is but not explaining that well enough in my post. Do you mean motorists should be able to have their speedos adjusted to read correctly, i.e that the instrument itself should ...
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