Any function requiring time to be entered, the timer may be
used by pressing TIMER ENTER when prompted for
time. The
9
timer can be set to 00:00:00 or another time and then count
up or down in these calculations.
Activating the count down timer will keep the screen from
turning off until approximately thirty minutes without use.
PRESSURE AND DENSITY ALTITUDE
(P-D/ALT)
This function will compute the pressure and density altitude
given the indicated altitude, barometric pressure (altimeter
setting in inches), and true temperature in Celsius. In this
example, indicated altitude is 10,000 feet, the barometer is
29.94 inches, and the temperature is 5°C.
Select P-D/ALT from main menu
Press ENTER and the display will prompt for IALT
Key in 10000 and press ENTER
The display will prompt for BARO
Key in 29.94 and press ENTER
The display will prompt for T°C
Key in 5 and press ENTER
The display will read:
PLANNED TRUE AIRSPEED
(PLAN TAS)
This function is used to calculate true airspeed for preflight
planning. It will compute the true airspeed in knots and Mach
number and density altitude, given the pressure altitude,
temperature, and calibrated airspeed in knots. In this example,
pressure altitude is 10,000 feet, temperature is 2°C, and CAS
is 200 knots.
Select PLAN TAS from main menu
Press ENTER and the display will prompt for P A L T
Key in 10000 and press ENTER
The display will prompt for T ° C
Key in 2 and press ENTER
(FLASHING) P ALT
9980.
5.
10000.
29.94
11093.
I ALT
T
°
C
BARO
(FLASHING) D ALT
