Air Temp Com Table

good day. you said at 0 degree C the fuel comp should be 0 (one minute duration in the course ) but in the table u have 5% fuel adding in the table u provided, why is this?

In reality it doesn't matter what point we choose as our 'zero correction' temperature. In the perfect world it would make sense to use the temperature defined under standard conditions of 15 deg C. normally the default temp compensation table will have break points at 10 deg C increments so I revert to using 20 deg C as my zero point. From here we add about 2.5 % fuel per 10 deg C drop in temp, and reduce the fuelling by about 2.5% as we move hotter.