Symphony SA-160 - (A) Approximation Method; (B) Interpolation Method

SA 160
AIRCRAFTA I R C R A F T
Symphony
AIRCRAFT
5-9
(a) Approximation Method
Read values at 2150 lbs, ISA+30 °C, and 2000 ft:
-Lift-Off Speed 58 KIAS
-Speedat50ft 62 KIAS
-GroundRoll 1575 ft
-TotaltoClear
a50ftObstacle 1985 ft
(b) Interpolation Method
- The example airfield pressure altitude is 20% of the difference
between 2000 ft and 3000 ft.
- The temperature is 50% of the difference between 35 °C and 45 °C.
Between the read values, the corresponding percentages are to be
considered:
-Lift-Off Speed 58 KIAS
-Speedat50ft 62 KIAS
-GroundRoll 1562 ft
-TotaltoClear
a50ftObstacle 1960 ft
The correction for headwind:
For a 10 kts headwind, decrease distances by 10%.
Ground Roll 1562 ft - (10%)x 1562 ft = 1406 ft
Total to Clear
a 50 ft Obstacle 1960 ft - (10%)x 1960 ft = 1764 ft
SECTION 5
PERFORMANCE
Feb 25, 2005