Transmittal Note AMENDMENT NO. 5 TO THE SUPPLEMENT TO ANNEX 5, THIRD EDITION UNITS OF MEASUREMENT TO BE USED IN AIR-GROUND COMMUNICATIONS Enter by hand the following amendments to the Supplement to Annex 5, dated 1/5/73. 1. Niger, 21/11/73, ICAO Table, No differences. 2. USSR, 4/2/74, ICAO Table, Differences as regards - Distances used in navigation, position reporting, etc. Kilometres and tenths of kilometres Horizontal speed Kilometres per hour Surface wind Metres per second Wind at altitude Kilometres per hour Altimeter setting Milimetres of mercury or millibars 3. Swaziland, 13/6/74, Blue Table, No differences.