3.12.2.3 Sector Search Pattern. Sector angle and pat-tern radius are linked, so that changing one will change the other. The controls and functions of the expanding square search pattern are as follows:
CONTROL/ FUNCTION INDICATOR
SECTOR Title of screen.
gSTART AT Selects trigger waypoint number and name for edit.
gDIR Enter direction of .rst leg.
gORIENT Toggles direction of .rst turn between left or right to produce a clockwise or counter clockwise (CW and CCW) pattern.
sENGAGE Activates the pattern immediately. If a trigger waypoint is speci.ed, helicopter will .y a 9direct-to9 leg to the waypoint, and start the pattern. If 0 is entered as trigger waypoint, the pattern will start immediately. When pattern is active, ENGAGE is displayed in reverse video.
DIST-1s Enter sector radius (D-1) distance of pattern in NM.
SECT-ANGLEs Enter sector angle of pattern.
FINDg Access FIND screen.
ARMg Arms pattern, for activation when trigger waypoint becomes the TO waypoint in an active .ight pattern.
CONTROL/ INDICATOR FUNCTION
RTNg Return screen. to previous displayed
3.12.2.4 Find Screen. Use the .nd screen to set sug-gested distances in the search patterns. These distances are based on a look up table embedded in AMS software. Pressing the soft key adjacent to the search object (yellow raft, smoke, hand held star) will cause the appropriate search distances to be entered in the pattern that was dis-played when the FIND soft key was pressed. The controls and functions of this screen are as follows:
CONTROL/ FUNCTION INDICATOR
FIND Title of screen.
SK-1gYELLOW Returns to previous screen with D-
RAFT 1, D-2, and sector angle (as applicable) set for conditions and objects displayed.
SK-2gSIGNAL Returns to previous screen with D-MIRROR 1, D-2, and sector angle (as SMOKE applicable) set for conditions and 2-CELL objects displayed. FLASHLIGHT
SK-3gDYE Returns to previous screen with D-MARKER 1, D-2, and sector angle (as LIFE JACKET applicable) set for conditions and HAND HELD objects displayed. STAR
SK-4gSMOKE Returns to previous screen with D-(BLANK) 1, D-2, and sector angle (as VERY applicable) set for conditions and CARTRIDGE objects displayed.
SK-5gLIFE Returns to previous screen with D-JACKET 1, D-2, and sector angle (as (BLANK) applicable) set for conditions and (BLANK) objects displayed.
CONDITIONs Toggles between SUN, OVRCAST, and NIGHT condition, changing selection of search objects.
CONTROL/ INDICATOR FUNCTION
RTNg Return screen. to previous displayed
3.12.3 Waypoints. A waypoint is a geographic location. Waypoints are stored in the AMS data base with a unique navigation reference point (NRP) number and name. Way-points may be part of the downloaded .ight data, created or modi.ed with the CDU, or automatically generated by the .ight planning program. Waypoints generated to start .ight plans, or as part of a search pattern are assigned special NRPs and names by the .ight planning program. A .ight plan engage start position will be labeled START. The helicopter’s position when a direct-to function is activated is marked as MAN-LL. Search pattern waypoints will be marked CR-NN, EX-NN,or SS-NN. The pattern waypoints are also numbered from 1 to 99, and will reset to 1 if the pattern is .own long enough. A waypoint that is calculated as an offset of an existing waypoint will have * in front of its name.
3.12.3.1 Create and Modify Waypoints, and Store-points. Waypoints are loaded in both CDUs by the data transfer system. Editing the waypoints changes both CDU .les and DTS .les as they are edited. Storepoints are cre-ated in the CDU by over.ying a known point, establishing a GPS position, or marking a TACAN bearing and dis-tance.
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