whifof100ll
Well Known Member
I'm trying to guage the importance of an EFIS that still provides adequate attitude information given the failure of pitot static system or GPS. I want light IFR capability and want to install an EFIS using the Tru Trak ADI pilot II as not only an autopilot, but an attitude backup. I've seen many post on aiding requirements for the different EFIS's, but not for the Tru Track ADI. The manual states attitude works without GPS, but does anybody know how it works with a loss of pitot static?
Finishing this project is getting expensive, and I'm considering a D180 because of price, but it concerns me that if the pitot tube freezes, attitude informaiton is unreliable. I know that they state you can install reduntant pitot/static connections, but that seems like a lot of complexity. Also, they both might freeze, correct? This would be less of a concern if the Tru Trak ADI still worked as an attitude instrument without external aid.
MGL stuff looks great, but Odyssey is too large for my panel and Voyager might be too late for me. I need delivery in the March 08.
Advanced Flight Systems looks good. My only concern is what happens if there is a power glitch in flight. The manual state that you lose attitude for 2 minutes. Thats a long time in IMC. The manual also states that it needs to sit still for 2 minutes. Can it recover from a power loss or watchdog failure in flight or do you lose the attitude for the remaining flight duration? I'm not sure if it is any different than GRT. What is the likelyhood of a power loss or system reboot with a backup battery? How long has this product been out and how relaible had it been?
GRT looks like a great answer, but a bit pricey for me.
Finishing this project is getting expensive, and I'm considering a D180 because of price, but it concerns me that if the pitot tube freezes, attitude informaiton is unreliable. I know that they state you can install reduntant pitot/static connections, but that seems like a lot of complexity. Also, they both might freeze, correct? This would be less of a concern if the Tru Trak ADI still worked as an attitude instrument without external aid.
MGL stuff looks great, but Odyssey is too large for my panel and Voyager might be too late for me. I need delivery in the March 08.
Advanced Flight Systems looks good. My only concern is what happens if there is a power glitch in flight. The manual state that you lose attitude for 2 minutes. Thats a long time in IMC. The manual also states that it needs to sit still for 2 minutes. Can it recover from a power loss or watchdog failure in flight or do you lose the attitude for the remaining flight duration? I'm not sure if it is any different than GRT. What is the likelyhood of a power loss or system reboot with a backup battery? How long has this product been out and how relaible had it been?
GRT looks like a great answer, but a bit pricey for me.
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