- Joined
- Oct 16, 2019
- Messages
- 6,089
- Location
- Atlanta / Marietta
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Vintage Snazzy (so my adult children say)
Every plane I've flown in for the past 8 years has had 2 Nav radios, but only 1 GPS (either a GNS 430 or a GTN 650). So even though 95% of flying is with GPS, planned / thought out or not we've seemed to have arrived at a common panel design that has no back up to what we use most of the time and a back up/2nd Nav that has probably never been used.
There are many combinations of possible failures. (Loss of GPS, loss of an entire unit, loss of a VOR, etc.) But what is actually the most probable failure, and what would the most pragmatic back up be?
Assume that our primary navigator is a unit that has both GPS navigation as well as a NAV radio (such as the GTN 650).
Assume also that we're trying to give our back up solution a bit of thought vs bludgeoning this to death with a ton on money on twin GTN 750's.
Should we just stay with today's convention and continue with a 2nd Nav radio, or skip the 2nd Nav radio and add a back up GPS navigator? (like the GNC 355)?
There are many combinations of possible failures. (Loss of GPS, loss of an entire unit, loss of a VOR, etc.) But what is actually the most probable failure, and what would the most pragmatic back up be?
Assume that our primary navigator is a unit that has both GPS navigation as well as a NAV radio (such as the GTN 650).
Assume also that we're trying to give our back up solution a bit of thought vs bludgeoning this to death with a ton on money on twin GTN 750's.
Should we just stay with today's convention and continue with a 2nd Nav radio, or skip the 2nd Nav radio and add a back up GPS navigator? (like the GNC 355)?