How do you calculate the landing distance with flap setting of 10° and 20°?
All the performance graphs in the manual give landing distances with ﬂaps set at 37.5°
To calculate landing distance with ﬂaps set at 20°, multiply the landing distance for ﬂaps 37.5° by 1.3 – in other words, landing distance with ﬂaps 20°is 130% of the distance given in the charts
To calculate landing distance with ﬂaps set at 10°, multiply the landing distance for ﬂaps 37.5° by 1.8 – in other words, landing distance with ﬂaps 10°is 180% of the distance given in the charts