User manual

Page 75
Aircraft Operation Manual
Piper Cheyenne I, IA, II, IIXL
For ight simulation use only
Altitude Display
The KT 76C displays Flight Level Altitude, marked by the letters „FL” and a num-
ber in hundreds of feet, on the left side of the display. For example, the reading
„FL 065” corresponds to the altitude of 6,500 feet, referenced to 29.92 inches
of mercury (or 1013 hP) at sea level. Flight Level Altitude represents „pressure
altitude,” and should not be confused with true altitude. Please note that the
displayed altitude may not agree exactly with the aircraft’s altimeter when ying
below 18,000 feet, because encoders are preset to 29.92 inches of mercury. An
encoder’s altitude transmission is automatically corrected for proper altimeter
setting by a ground based computer, to present the correct altitude to the con-
troller.
Ranging from -1,000 to +99,000 feet, Flight Level Altitude is displayed only when
altitude reporting is enabled. If the altitude window is blank or shows a series
of dashes (as in the case of an invalid altimeter code being reported), altitude
reporting will be disabled.
CLR Button
Code entry mistakes are corrected, one digit at a time, by pressing the CLR but-
ton and reentering the correct code. The last active code will be displayed if a
complete four-digit code has not been entered and there is no activity on any of
the code entry buttons, the VFR button, or the CLR button for four seconds.
VFR Button
Momentarily pressing the VFR button will enter a pre-programmed VFR code,
typically 1200, in the code window. Pressing and holding the VFR button for two
seconds will cause the last active code to be displayed. Depending on your home
country, it may be desired to set the default VFR code to a code other than 1200.
To change the default VFR code, edit the PA31.CFG le in the <FSX>\Digital Avia-
tion\PA31 Cheyenne\ folder using a standard text le editor.
Reply Indicator
The reply indicator blinks to indicate that the KT 76C is functioning properly and
replying to interrogations.