2002-09-25 I can understand when planes were all built with analogue displays and the cost to change them would be very expensive. But, as new planes and future planes are built completely digital then the cost issue becomes moot. Software upgrades or metric software already installed but selectable via a code would make those costs non-existent. If laws requiring older planes to computerise for reasons of safety or whatever, then the cost of metrication is incorporated in cost to upgrade.
Whereas some can hope for an indefinite delay in the implementing of the regulation, technology is already with us to do it in the very near future. We just need the will to push the issue. John ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[EMAIL PROTECTED]> Sent: Wednesday, 2002-09-25 11:53 Subject: [USMA:22333] ICAO again > [begin quote] > Whereas Annex 5, Fourth Edition, specifies the use of a standardized > system of units of measurement in inter-national civil aviation air and > ground operations based on the International System of Units (SI) but > permits the use of certain non-SI units on a permanent basis and others > on a temporary basis; > > The Assembly resolves that: > > 1. Contracting States shall be encouraged to bring their national > regulations and practices into conformity with the provisions of Annex > 5, as soon as practicable; and > > 2. in all ICAO air navigation publications the units of measurement > shall be expressed in the units specified in Annex 5 where appropriate > units exist therein. > [end quote] > > http://www.icao.int/icao/en/res/res_arch/a32_14.htm > > > -- > Terry Simpson > Human Factors Consultant > [EMAIL PROTECTED] > www.connected-systems.com > Phone: +44 7850 511794 >
