BendixKing SKYMAP IIIC - Manual (Page 83)

DETAILED OPERATION
figure is given in whichever units you selected on Screen 22, Map Customisation Screen.
In the left centre of the screen at the top you can read BRG. This is the magnetic bearing
to the next turning point.
To the right of BRG at the top of the map is the ETE. This gives the Estimated Time En-
route (i.e. the estimated time, in hours and minutes, that it will take you to get to the
destination point from your present position assuming you maintain your present ground
speed.
On the Skymap IIIC unit only, at the top right of the map is the ETA. This is the Estimated
Time of Arrival at the next turning point. Ensure you have set the local time offset
correctly to get local ETA’s. Refer to the GPS Status Screens Section of this Manual for
more details. (The reason that ETA is not available on Tracker IIIC is that, depending on
the type of GPS receiver in use, real time and local time offset is not always known.)
In the left centre of the screen at the bottom is TRK. This is the actual magnetic track the
aircraft is travelling over the ground. By comparing this with your magnetic heading you
can make an estimate of the crosswind component.
To the right of TRK is GS. This is the actual ground speed of the aircraft and is displayed
in Knots if you set the map units to nautical miles on Screen 22, Map Customisation
Screen, MPH if you set them to statute miles or KPH if the map units are set to kilometres.
By comparing the GS with your TAS you can make an estimate of the head or tail wind
component. Alternatively refer to Screen 58, Density Altitude, True Air Speed, and Winds
Aloft in the E6B Calculator Screens section of this manual.
DETAILE
D
OPE
RATION
If ground speed is less than 3 Kt., the map will revert to North Up even if Track Up is
selected. This is to stop the map rotating when static due to the small position fix changes
caused by atmospheric and other effects.
If you have entered this Screen 47 by activating a flight plan, a DIRECT TO can be
performed on top of the flight plan. You can initiate the DIRECT TO either to an item from
the database or by using the joystick pointer or by calling up one of the 10 nearest airports
or beacons. In each case the Key 5 label will change to “DIRECT TO OFF”. The flight plan
that previously was active will fall into the background and will be replaced by the DIRECT
TO information. When the DIRECT TO destination is reached or whenever you press the
DIRECT TO OFF Key (Key 5), the flight plan and its information will be reinstated.
Viewing En-route ETA’s and Direct-To Page
When flying a flight plan, the ETA’s for each leg of the flight plan can be viewed on Screen
41A which is accessed by pressing Key 5, DIRECT TO on the MAP mode screen (screen
47).
Rev 9 Jul 2006 3-40 Skymap/Tracker IIIC Pilot's Guide