FREQUENCY PRESET NAME
AB0327
SA
Figure 3-3. COM Header
3.4.2.6.2 Editing Using Fixed Function Keys. Dur-ing entries CLR clears the scratch pad and terminates the edit. ENT accepts the entry. PRV deletes the last key stroke and NXT pulls characters down from the current parameter value. For special format entries (i.e. lat/long, zone/coord, date/time) the editor will .ll unentered positions with blanks or zeros as appropriate. Entries are alined based on their decimal point position. If no decimal has been en-tered, one is assumed after the last character keyed.
3.4.2.7 Fixed Header. The .xed header functions inde-pendently from the rest of the screen. Its purpose is to provide continuous display of essential navigation and communication information. Direct entry into the header is not permitted. Headers are either in COM or NAV format.
3.4.2.7.1 COM Header. Display communication radio status for copilot and pilot radios as selected on the ICS control panel. The Com header is divided into two halves, showing communication radio selections for the pilot (PLT) and copilot (CPT) (Figure 3-3).
INDICATION FUNCTION
System Time Indicates system time.
INDICATION FUNCTION PLT Indicates pilot’s side of display. In
inverse video when selected radio is keyed. the ICS
Preset ID Shows selected preset. Blank if manual tune, or ICS mode, *EMERG* when emergency selected.
Selected Radio Type of radio selected with ICS mode selector switch.
Frequency Frequency or channel display. Area displays SCAN when in scan mode and is blank when in ICS selection mode.
Preset Name Name of preset chosen.
Nav Mode Indicates navigation mode of the AMS.
SEC Appears in inverse video when the selected radio is in CIPHER mode. When operating in PLAIN mode, the display is MHZ or blank.
CPT Indicates copilot’s side of display. In inverse video when the ICS
selected radio is keyed.
3.4.2.7.2 NAV Header. Displays navigation status of AMS, giving summary of position of TO waypoint (Figure 3-4).
INDICATION FUNCTION
RNG Distance in nautical miles to the parent waypoint. Displays are 0 to 9999.9 or ****.* if beyond range.
0.0 is displayed when there is no active steering.
BRG The magnetic bearing to the parent waypoint.
NXT The initial desired magnetic course of the next leg of the .ight plan with the parent waypoint as the FROM point. Blank when there is no next leg.
NAV MODE SYSTEM TIME
ALTITUDE
AB0328
SA
Figure 3-4. NAV Header
INDICATION FUNCTION
WND Computed wind direction and
velocity in knots
Time System time.
TTG Time to go to the parent waypoint at current ground speed. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址:UH-60Q 直升机技术手册 直升机操作手册 1(66)