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Take-off and Landing Safety Factors calculator

Take-Off / Landing Safety Factor Calculator Take-off Distance calculator

 Take-off Distance (before factors applied)
Take-off Distance  
 
 Performance Factors
Weight increase  %
Elevation increase  ft
Temperature increase  °C
 
 Tailwind
Lift-off Speed (VLO)  kts
Tailwind  kts
 
Uphill Slope  %
 
 Runway Condition
Non-limiting
Dry Grass (up to 20cm)
Wet Grass (up to 20cm)
Soft Ground/Snow
 
 Take-off Distance (after factors applied)
Excl. Gen. Safety Factor  
Incl. Gen. Safety Factor (1.33)  


Landing Distance calculator

 Landing Distance (before factors applied)
Landing Distance  
 
 Performance Factors
Weight increase  %
Elevation increase  ft
Temperature increase  °C
 
 Tailwind
Lift-off Speed (VLO)  kts
Tailwind  kts
 
Downhill Slope  %
 
 Runway Condition
Non-limiting
Dry Grass (up to 20cm)
Wet Grass (up to 20cm)
Wet Paved Surface
Soft Ground/Snow
 
 Landing Distance (after factors applied)
Excl. Gen. Safety Factor  
Incl. Gen. Safety Factor (1.43)  

How Take-off and Landing Safety Factors are calculated


Safe Take-off and Landing distances are calculated based on the factors provided in the table below (from the UK CAA Safety Sense Leaflet 7 - Airplane Performance)


PERFORMANCE FACTORS
Take-offLanding
10% weight increase1.21.1
1,000ft increase in elevation1.11.05
10ºC increase in temperature1.11.05
Tailwind component 10% of lift-off speed1.21.2
2% Uphill Slope1.11
2% Downhill Slope11.1
SAFETY FACTORS
Take-offLanding
Dry Grass (up to 20cm)1.21.15
Wet Grass (up to 20cm)1.31.35
Wet Paved Surface11.15
Soft Ground/Snow1.251.25
FINAL UK CAA SAFETY FACTOR
Take-offLanding
General Safety Factor1.331.43

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