A.I.P. CANADA (Aeronautical Information Publication)
published by Transport Canada and amended monthly

Hope this will help with some questions that have been posted.

A.I.P. CANADA
GEN 1-6
Units of Measurement  1.5

The Imperial System of units is used for all information contained on aeronautical charts and publications.

GEN 1-7
Other Units  1.5.1

Other units are given in the following table and apply to specific situations.

MEASUREMENT                                     UNIT
Altimeter setting                                inches of mercury
Altitudes, elevations and                   feet
heights
Distance used in navigation               nautical miles
Horizontal speed                                knots
Relatively short distances                  feet
Runway Visual Range                         feet
Temperature                                      degrees Celsius
Tire Pressure                                      pounds per square
                                                          inch
                                                          megapascals
Vertical Speed                                    feet per minute
Visibility                                              statue miles
Weight                                                pounds
                                                          kilograms
                                                          kilonewtons
Wind Direction, except for                   degrees true
landing and takeoff
Wind Direction observations               degrees magnetic
for landing and takeoff
*Degrees true in the Northern
 Domestic Airspace
Wind Speed                                         knots


Cheers...Happy Landings...Doug