The Importance of Units: The Gimli Glider Overview of the Case: The switch to the metric system from imperial units began in earnest in Canada in the 1970s. By the 1980s, the aviation sector in Canada was in the process of converting to the metric system. Air Canada Flight 143 was a flight scheduled on July 23, 1983 to fly between Montreal and Edmonton. On that day, at an altitude of 41,000 feet, only midway through the flight, the plane ran out of fuel. How did this happen? Could it happen again? How could it have been avoided? AIR CANADA By Akradecki - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=4251483 The Refueling Calculations: At the time of this flight, some flights were using metric units and other flights were using imperial units. 767 planes, like the one used on Air Canada Flight 143, were using the metric system. The pilot calculated that the flight would require 49,200 lbs of fuel. If there are 2.20 lb/kg, how many kg of fuel were required? A worker in charge of helping with the refuel checked and found that there were 7,682 liters of fuel in the tank already. Given that jet fuel has a density of approximately 0.804 kg/L, how many kg of fuel were already in the tank? Based on the two calculations above, what amount of fuel (in kg) needed to be added to the tank? Fuel is transferred using a device that measures volume in liters-how many liters of fuel needed to be added