BOEING 707-320 -
Inertial Navigation System
Introduction
The INS unit is on the forward-centre panel. To display this panel in
FS2000/FS2002, click "INS/ADF PANEL" on the Captain or First Officer
main panel, or press SHIFT + 4. This panel also includes the ADF and
transponder.
This unit is typical of the waypoint navigation systems in use in the
60s and 70s. The system can store up to 25 waypoints. Initially, waypoints
for outward and return London-New York flights are set up. The 707
certainly doesn't have a moving map display, so you'll probably want to
get some maps to assist your navigation!
Overview
The main mode knob selects the display mode:
- POS - the aircraft's current latitude and longitude are
displayed.
- WPT - the co-ordinates of the currently selected waypoint are
displayed.
- TRK/GS - the track to the selected waypoint, and the
aircraft's current ground speed in knots are displayed.
- HDG/DA - gives the heading required to follow the correct
track, and the drift angle.
- DIST/TIME - gives the distance to the selected waypoint in
nm, and the time to the waypoint in hours and minutes.
The top row of keys have the following functions:
- HOLD - sets the HSI heading bug to the INS heading. Note that
this does not continuously update the heading bug to follow the INS
track - use the AUTO mode on the autopilot for this!
- SET - this allows waypoint to be changed. Waypoint must be
entered in a specific way.
The co-ordinates shown on the image would be selected using the keys
[SET][N][0][5][4][3][0][9][2][W][0][0][1][2][5][0][6][ENTER]
- CURRENT - selects WPT mode momentarily
- TRK - selects TRK/GS mode momentarily
- DIST - selects DIST/TIME mode momentarily
- CLR - Backspace key when entering waypoints.
Saving Flight Plans
The INS gauge automatically saves the currently entered waypoints to
disk when FS2000/FS2002 is turned off, or when the aircraft is changed. It is
also possible to save up to 3 user-defined flight plans.
- Flight Plan 1 - to save, press [SET][7][ENTER], to recover,
press [SET][1][ENTER]
- Flight Plan 2 - to save, press [SET][8][ENTER], to recover,
press [SET][2][ENTER]
- Flight Plan 3 - to save, press [SET][9][ENTER], to recover,
press [SET][3][ENTER]
To restore the default London-New York-London flight plan, press
[SET][ENTER]
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