PERFORMANCE
AIRPLANE
OPERATIONS
MANUAL
1-04-05
Page
6
Code
01
REVISION 14
Example:
Airport elevation: ................................................................ 1500 ft
Airport Temperature........................................................... -20
o
C
Obstacle Height above airport elevation ............................ 800 ft
Altimeter adjusted to airport QNH (on ground altimeter reads 1500 ft).
Enter table with 800 ft and -20
o
C and read 100 ft.
So, when the airplane reaches the obstacle geometric height, the
altimeter will read 1500 + 800 + 100 = 2400 ft
Altimeters read
2400 ft
800 ft
Elevation = 1500 ft
T = -20
o
C
Altimeters reads 1500 ft
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