Given the following data, calculate take-off distance required to clear 50 ft.
Pressure altitude: 5000 ft
Weight: 2400 lbs
Temperature: +30°C
RWY dry, grass runway
5 kts headwind
Refer to figure.
Step 1: Read table at PA 5000 ft, +30°C
Total to clear 50 ft = 2790 ft.
GND ROLL = 1550 ft.
Step 2: Apply headwind correction
5 kt headwind = 10% decrease.
2790 x 0.90 = 2511 ft.
Step 3: Apply grass correction
GND ROLL after headwind correction: 1550 x 0.90 = 1395 ft.
Grass addition = 10% of adjusted GND ROLL = 1395 x 0.10 = 139 ft.
Total = 2511 + 139 = 2650 ft
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