This WAAS gauge is not a copy of any known real WAAS gauge. It was designed to emulate the new WAAS (Wide Area Augmentation System) that basically provides horizontal and vertical navigation based on satellite signals rather than land based signals. This means horizontal and vertical navigation guidance to any runway at any airport in the GPS database regardless of the navigational equipment at the airport. You can use this gauge to make an ILS-like approach and landing to any runway in the database, including small private grass and water strips.
Definitions (see accompanying pic fs2x_WAASv2.0.jpeg)
1. Airport Info Box: A popup window that provides target airport and runway information based on user input. Turn display on/off by clicking on the AIB Button. The blue background disappears when the aircraft is within 5 nmiles of the target airport.
2. HNAV Pointer: Indicates the position of the aircraft relative to the target runway direction. If the pointer is left of center the aircraft is to the right, and if it is right the aircraft is to the left of the target runway.
3. Flight Path Line: Use this stationary line to line up the aircraft with the target runway displayed on the moving map.
4. HNAV Scale: Stationary scale used with the HNAV Pointer to indicate the position of the aircraft relative to the target runway latitude.
5. VNAV Scale: Stationary scale used with the VNAV Pointer to indicate the position of the aircraft relative to the glide slope.
6. VNAV Pointer: Indicates the position of the aircraft relative to the glide slope. If the pointer is above center the aircraft is below the glide slope, and if it is below center the aircraft is above the glide slope.
7. AIB Up Button: Used to display information on the Airport Info Box, and to toggle the cursor from airport choice to runway choice.
8. AIB Down Button: Used to toggle the cursor from runway choice to airport choice.
9. Cursor Button: Used to highlight data fields that can be changed by the user.
10. RWY Up Cursor Button: Used to scroll the cursor forward through runway choices. Also used to toggle moving map from north orientation to aircraft heading orientation.
11. RWY Down Cursor Button: Used to scroll the cursor backwards through runway choices. Also used to toggle moving map from aircraft heading orientation to north orientation.
12. Zoom Ref: A reference value in nmiles used in zooming in or out. The lower this number the more zoomed in, and visa versa when the number is high.
13. WPT Apt Altitude: Displays the altitude of the next active WPT in feet ASL.
14. AIB Button: Click on this location to display or hide the popup Airport Info Box.
15. Designated RWY Direction Entered: Actual direction of the designated runway in degrees not rounded off.
16. Right Knob: Used to enter the designated Runway direction in degrees, and to toggle the Flight Path Line, and
HNav and VNav scales and needles on and off.
17. Aircraft Tracking Direction: Direction the aircraft is moving over the ground.
18. Stationary Plane: A stationary plane used to represent the actual aircraft.
19. Designated RWY Direction: Direction of the designated runway from the current aircraft position in degrees.
20. Left Knob: Turn the unit on/off, and adjusts the brightness level of the screen.
21. GPS Aircraft Altitude: Displays the current aircraft altitude in feet ASL.
22. WPT Apt Enter Button: Used to enter desired waypoint. This button has a function very similar to a Direct-To function in the GPS. Setting the wpt with this button also sets the wpt in the GPS.
23. Designated RWY Distance: Displays the distance to the target runway in nmiles.
24. Enter Button: Used to enter user chosen data on the pages and sub-pages. Click on this button until the cursor rectangle disappears.
25. Clear Button: Used to clear data entered.
26. Zoom In Button: Used to zoom in on the moving map.
27. Zoom Out Button: Used to zoom out on the moving map.
28. Map On/Off Button: Used to add/remove the background map. Map on by default.
29. Terr On/Off Button: Used to switch between the background map and terrain views. Map on by default.
30. ILS On/Off Button: Used to add/remove ILS markers. Off by default.
31. fp Line On/Off Button: Used to add/remove the flight plan line. Line on by default.
32. Lub Line On/Off Button: Used to add/remove the lubber line. Line on by default.
33. Comp On/Off Button: Used to add/remove the compass. Compass off by default.
Instructions
As noted above, this gauge provides both horizontal and vertical navigation guidance for landing at any airport in the GPS database using GPS input only.
The target airport/runway must be set as the destination waypoint. This can be done using the WPT Airport Enter Button or set directly in a GPS unit using the Direct-To button and then designating the target runway.
Vertical navigation is provided in a typical ILS manner with a pointer that moves vertically over a fixed scale to indicate the position of the aircraft relative to the glide slope.
Horizontal navigation is provided in a typical ILS manner with a pointer that moves horizontally over a fixed scale to indicate the position of the aircraft relative to the runway position and alignment. In addition, horizontal reference is provided using the Flight Path Line. The idea is to align the aircrafts flight path with the target runway displayed on the moving map. The map can be zoomed in or out to show the target runways position and orientation.
A popup window is available that displays the user chosen airport, runway, runway length and width, surface type, and available lighting at any user chosen airport by clicking on the AIB Button.
The zoom buttons are very helpful for successful horizontal navigation.
Using the autopilot during approach is highly recommended.
Click on the WAAS Icon to display and hide the gauge.
Typical Use:
1. Turn on the unit by clicking on the middle knob of the Left Knob.
2. Set the target airport and runway to the desired setting.
To enter the wpt apt and target runway using the WAAS:
1. Click on the AIB Button button to display the Airport Info Box.
2. Click on the AIB Up Button.
3. Click on the Cursor Button to highlight the apt name in the info box.
4. Click on the RWY Up Button to start entering data.
5. Use your keyboard to enter the desired wpt apt.
6. Next click on the enter button to enter the apt choice.
7. Click on the WPT Airport Enter Button and then 2 times on the Enter Button. The apt is
now set to that entered (also set in a GPS as a direct-to function).
8. To set the correct runway, first click on the Cursor button to highlighted the apt wpt. Then
click on the AIB Up Button to scroll the cursor to the runway line in the Apt Info Box.
9. Next click on the RWY Up Button to display a popup listing the available runways at
the wpt apt. Keep clicking on the RWY Up Button until the desired runway is highlighted.
10. Click on the Enter Button 2 times to enter and set the highlighted runway.
(*note: you can enter the desired runway following step 6 by clicking on the AIB Up Button while the
apt name is highlighted and then click the RWY Up Button. Use the RWY Up or Down Button to
select the desired runway. Next click 1 time on the enter button, once on the WPT Airport Enter
Button and then twice on the Enter Button. This enters the choice of airport and runway at the same
time.)
11. If you have trouble, click on the CLR button and start again.
3. Set the actual direction of the target runway using the Right Knob.
To enter the Designated RWY Direction value in degrees use the RightKnob:
1. Click on the upper right or upper left side of the right knob to place the red rectangle background over the
digit you want to change. Click on the lower right or lower left to enter the desired number into the
highlighted digit. Continue to click on the upper part of the Right Knob until the rectangle moves off to the
right or left and is gone.
4. Horizontal navigation:
1. Maneuver the aircraft so that its flight path is aligned with the target runway using the HNAV
needle and scale (i.e., center the HNAV needle on the HNAV scale).
2. Also use the green Flight Path Line extending from the Stationary Plane to make the
alignment. When the green line is directly on top of, and in the exact same direction to, the target runway
the aircraft is heading in the right direction.
3. Use the zoom in function to keep the target runway on-screen as the aircraft gets nearer the
runway.
4. Set the autopilot heading hold function to the current heading.
*Note: Sometimes the runway numbering does not match the actual runway direction. For example,
according to the heading indicator
Rwy25 at KDEN is actually 259, not 250 degrees. One or 2 things can be done. 1) set the designated
runway direction to the actual runway direction, in this example 259 degrees, or 2) if you dont know
this number, line up the green Flight Path Line with the runway on the moving map and then change the
designated runway direction with the Right Knob until the HNav needle is centered on the scale.
5. Vertical navigation:
1. Adjust the aircraft altitude so that the VNAV Pointer is positioned in the center of the VNAV
Scale.
2. When the VNAV pointer is centered, set the autopilot altitude hold value to 100-200 feet
AGL and the descending vertical speed value to 500 or 600 ft/min.
3. Keep the pointer centered by making adjustments to the vertical speed.
6. Keep the HNav needle centered on the HNav scale and the green line directly on top of the target runway, and the VNAV pointer centered on the VNAV scale, and you will end up at to the start of the target runway.
7. The Clear button can be used at any time to remove the cursor and clear data entry.
This mission is freeware and may not be used in any payware product without the authors expressed consent.
Use this program at your own risk! Use of this program serves as an acceptance of the preceeding statement.
