10% increase in weight Take Off
1.2
10% increase in weight Landing
1.1
+1000ft aerodrome elevation Take Off
1.1
+1000ft aerodrome elevation Landing
1.05
+10 degrees ambient air temp Take Off
1.1
+10 degrees ambient air temp Landong
1.05
Dry grass on firm soil Take Off
1.2
Dry grass on firm soil Landing
1.15
Wet grass on firm soil Take Off
1.3
Wet grass on firm soil Landing
1.35
Wet paved surface Take Off
Nil
Wet paved surface on landing
1.15
2% slope Take off
Uphill 1.1
2% slope Landing
Downhill 1.1
Tailwind 10% of Take Off speed Take off and Landing
1.2
Soft ground or snow Take Off or Landing
1.25 or more
Safety factors Take off
1.33
Safety Factors Landing
1.43