1. Garmin 430 Use It, Don’t Lose It!

2. I wonder who that could be? Do you want to get the sextant out and fix our position? Could try this new fangled GPO thingy, if I knew how to turn it on? Any aircraft two miles north of Southampton on frequency?

4. So What Can It Do? VHF Com – active and standby frequencies VOR / LOC / ILS - active and standby frequencies GPS navigation – direct to and flight plan GNSS RNAV approach procedures Vertical navigation – descent planning Fuel planning Utilities

5. Darling, where’s the thing to turn the GPS on? Oh Charles! You gave him the week off.

6. OK, So Turn It On! Turn the power button (1) clockwise to power up the unit. Push button 1 to input white noise, then adjust to a comfortable volume. Push button 1 again to cancel the white noise The unit will go through a series of self tests – this will require some interaction. The first thing to check is that the data base is current! When happy, press the ‘ENT’ (enter) button (9)

7. This is to check the link between the unit and the CDI (Nav 1) To check the integrity, rotate the OBS knob and check that the OBS indication on the G430 is reading correctly. Note that the VLOC and GPS indications are both lit on the CDI. This will only happen on the self test.

8. Fuel This is an option, and is not required for the unit to operate correctly. To set the fuel load and fuel flow: Turn the large knob (18) to select CAP. Using the small knob (17), enter the useable fuel – for the Warrior enter 180 To set the fuel on board: Turn the large knob (18) to highlight the FOB line, then use the small knob (17) to enter the amount in Litres as noted from your pre-flight checks! Using the large knob (18), scroll to the FF line and, using the small knob (17), enter the fuel flow for that particular aircraft as defined on the tech log (e.g 30L per hour in BR) N.B Make sure all units are uniform!!

9. Checklist The option is now available to run through a checklist if loaded in the unit. However, this checklist has not been authorised by Phoenix Aviation and should only be used in conjunction with the published checklist. To get to the checklist page, rotate the Large knob (18) to highlight the field ‘Go To Checklist’, and then press ENT. Turn the Large knob (18) to the desired checklist then press ENT. As each item is executed press ENT to put a tick in the adjacent box. When the checklist has been completed, press the small knob (17) to return to the Checklist page and then again to get to the Map page for normal operation.

10. Satellite Status Page The satellite status page appears when the unit attempts to collect satellite information. As the unit acquires satellites, the strength of the satellite signals appear as bar graph readings. The INTEG annunciator indicates that there is insufficient satellite coverage for the unit to pass the built-in integrity monitoring test.

11. Selecting Comm Frequencies The GNS430 is divided into separate windows (or screen areas) that includes a ‘Comm’ window, a ‘VLOC’ window and a ‘GPS’ window. To change the standby comm frequency: a)Push the left hand button (button 10) to highlight the area you wish to change (this area will be highlighted in turquoise). b)Rotate button 11 to change the MgHz and button 10 to change the KHz. c)To make the standby frequency active, toggle using button 3. The GNS 430 has an automatic squelch level built in to filter out background noise levels. To override the squelch, push the COMM Volume knob momentarily. To re-activate the squelch push the COMM Volume knob again.

12. Selecting Nav Frequencies To change the standby Nav frequency: a)Push the left hand button (button 10) to highlight the standby Nav frequency in turquoise. b)Rotate button 11 to change the MgHz and button 10 to change the KHz. c)To make the standby frequency active, toggle using button 3. Note: If you forget to press button 10 to return to the standby Comm window, it will change automatically after 30 seconds To Ident and Display the selected VOR: a)Make sure that the CDI is displaying VOR and not GPS by looking at the bottom left of the 430 display and the CDI itself. b)VLOC should be displayed. If GPS is displayed in green, press the CDI button (12) and check that it has changed to VLOC displayed in white. The unit is in GPS mode, and will need to be changed to VLOC to display the VOR on the CDI

13. To ident, turn down the volume using the VLOC Volume button (2), select NAV1 on the aircraft’s audio panel, press the VLOC button (2), ID will displayed in white, then adjust the volume until the ident is heard. The CDI can then be Used in the traditional manner.

14. Page Groups The GNS 430 has four page groups: NAV Group, WPT Group, AUX Group and NRST Group. If no other group is selected, the unit defaults to the NAV Group, and the active page group is displayed in the bottom right hand of the display Active page group Number of pages available Active page number in group There are seven pages available in the NAV group: Default NAV Page TERRAIN Page NAV/COMM Page Position Page Satellite Status Page Vertical Navigation Page To select a Page Group, rotate the large right- hand knob (17) until the desired group is displayed. To select a page within that group, rotate the small right-hand knob (18). To display the default NAV page, press and hold the CLR key.

15. The MAP Page After the GNS 430 acquires satellites and computes A position, the map page appears automatically. The aeroplane symbol indicates present position Relative to aeronautical fixes, airfields, VORs etc. If a route or waypoint has been selected, a magenta line indicates the desired track. If the map seems too cluttered, the user can either Press the CLR key repeatedly, removing items, Until the desired detail is depicted, or adjust the Range by using the RNG button (7). N.B removing items from the map screen could Result in losing controlled airspace boundaries.

16. Direct-to Navigation To use the unit to navigate a direct track to a waypoint, press the D button (6). The next screen to appear will be: Rotate the small right knob (18) to Select the first letter of the waypoint, Then rotate the large right knob (17) To move the cursor to the next letter and so on. When all the letters have been entered, press the ENT button (9) to confirm the identifier. Once this is done, The Activate? Function field is highlighted. Press ENT again to activate a direct-to course to the desired waypoint. Press and hold the CLR button (5) to return to the default NAV page. Rotate the small right knob (18) to get to the map screen.

17. Entering A Flight Plan Route The GNS 430 allows the pilot to create up to 20 flight plans with up to 31 waypoints in each flight plan. Flight plans are created, edited and activated using the FPL key (15). The FPL page group includes two pages: The Active Flight Plan Page and the Flight Plan Catalogue Page. The Active Flight Plan Page provides information and editing facilities for the flight plan currently in use. The Flight Plan Catalogue Page serves as the main page for creating new flight plans as well as editing or Activating previously created flight plans.

18. Creating A New Flight Plan 1)Press the FPL key (15). 2) Turn the small right knob (18) to select the Flight Plan Catalogue Page. 3) Press the MENU key (8) to display the Flight Plan Catalogue Menu. 4) Turn the large right knob (17) to select ‘Create New Flight Plan?’ then press ENT key. 5) The cursor appears on the first waypoint identifier field. Use the small right knob (18) to select the first letter of the waypoint and the large right knob (17) to move the cursor to the next letter. 6) Press ENT once the identifier has been selected. The cursor moves to the next blank waypoint identifier field. Repeat the above until the whole route has been entered. 7) To activate the flight plan, press the MENU key to display the Flight Plan Catalogue Menu. Turn the small right knob to select ‘Activate Flight Plan?’ the press the ENT key.

19. Wonder How The Fuel Is Going? Turn the large right knob (17) to access the AUX Page Group, then turn the small right knob (18) to select the desired page. Press ENT, and you will be presented with the Fuel Planning page The figures displayed will be POINT TO POINT or FPL depending on the Nav input. REQ – Quantity of fuel on board, LFOB – Left-over fuel on board, LRES – Left-over fuel reserve time, EFF – Efficiency, expressed in distance per fuel units e.g, nuatical miles per litre, RNG – Range.

20. The Possibilities Are Endless! Well they are not quite endless, but the GNS 430 has much more to offer than we have just explored. If you hold an IMC or Instrument Rating, the GNS 430 is a invaluable tool and should be investigated fully. It can help you fly an accurate hold, serve as a cross reference on a VOR/DME or NDB procedure and generally aid situational awareness. BUT … PLEASE, PLEASE, PLEASE remember that the GNS 430, as good as it is, will not tell you about the glider you are just about to collide with as you merrily follow the magenta line! The GNS 430 is also no substitute for proper pre flight planning. ‘’Now let’s put a record on the gramophone, or listen to the wireless. I think ITMA’s on this evening’’!