Shouldn't that be since 1866? Markus ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Metric4US" <[EMAIL PROTECTED]> Sent: Friday, March 22, 2002 9:02 PM Subject: IT JUST DOES NOT MAKE SENSE!!
> I have just imported 5 Small used British aircraft for operation in the USA. > I am told by the FAA that the units of barometric pressure in mm of mercury > used to set the altimeters are not in "standard US units of measurement". > Accordingly, I have to degrade a perfectly good system of measurement of > barometric pressure to meet the interpretation of Federal Aviation > Regulations at a cost of nearly $2,000. The atimeters will then read in > inches of Mercury. > > The Federal Aviation Regulations quote "All measurements are (to be)converted > to standard U.S. units of measure for those instruments necessary for > operation in the U.S. traffic system" > > Any one have a respected reference thet lists mm as a standard U.S. unit ?? > > Heeeelp! > > George V Crowe >
