Tankerpilot75
Well Known Member
I’m considering purchasing the Garmin GNC 355 to replace one of my two non-WAAS 430s. I would like to have a WAAS navigator with comm but don’t want to pay the price of a new 650. Used 430w gps’ are too expensive for an older navigator and are getting long in the tooth. However I do want the capability of flying the occasional VOR or ILS approach - which I should be able to do with my remaining 430.
I’m also planning to upgrade my old Horizon WS EFIS units to GRT’s Horizon EX units.
Here are my questions:
1. Using an ARINC module can I install a gps “selection switch” to send either 355 or 430 gps data to my EFIS units? Example: switch up = 355; switch down = 430.
2. Since the 355 does not support VOR/LOC can I use one EFIS serial port for vertical guidance for the 355 and another serial port for VOR/ILS guidance from the 430 on the EFIS unit.
3. Is there some better alternative to allow both the 355 and 430 to provide the total capabilities I want?
I’m also planning to upgrade my old Horizon WS EFIS units to GRT’s Horizon EX units.
Here are my questions:
1. Using an ARINC module can I install a gps “selection switch” to send either 355 or 430 gps data to my EFIS units? Example: switch up = 355; switch down = 430.
2. Since the 355 does not support VOR/LOC can I use one EFIS serial port for vertical guidance for the 355 and another serial port for VOR/ILS guidance from the 430 on the EFIS unit.
3. Is there some better alternative to allow both the 355 and 430 to provide the total capabilities I want?