GI-275 Question

[Neshi]

Avionics done.

[skykrawler]

On 4/18/2024 at 1:24 PM, LANCECASPER said:

I don't like the idea of the hardware and software backing up the same hardware and software. I've seen panels with just two GI-275s and that's it. Having one backing  up the other would scare me. Especially after a new software release. That doesn't strike me as a real back-up solution and how they ever got that approved is beyond me.

Here's one where two GI-275s failed - thankfully he had more instruments (5th post in the thread)

 

Please stop identifying this a dual failure.   The failure was the pilot left the cover on the pitot and went flying.

Granted, there was what should be considered a 'defect' in the system response - but not a failure.

IFR required instruments include turn coordinator AND rate of turn indicator.

 

 

[LANCECASPER]

2 hours ago, skykrawler said:

Please stop identifying this a dual failure.   The failure was the pilot left the cover on the pitot and went flying.

Granted, there was what should be considered a 'defect' in the system response - but not a failure.

IFR required instruments include turn coordinator AND rate of turn indicator.

First, I think the GI-275 is one of the most innovative products ever introduced. It allows a huge upgrade to legacy panels without having to do a complete new panel.

However, in the context of where I posted this on the thread, people were discussing whether it was a good idea to dump all of the instruments and just go with two GI-275s only. My point was that I don't want one instrument of the same type backing up another instrument of the same type, such as pictured on this panel:

When both instruments go black at the same time I don't think it really matters, after the fact, whether we call it a failure or defect - they both are unusable. But if you prefer defect, I'll concede. But either way I still would want other instruments backing up two GI-275s. I would want to have to go through what this guy did: https://www.beechtalk.com/forums/viewtopic.php?f=21&t=198092&start=120

[jetdriven]

I don’t use pitot tube covers for that reason anymore; leaving it on is more of a hazard than having it get obstructed possibly. Also, I would still have some kind of independent other primary source of attitude information whether that’s a G5 or a plain old iron Gyro or a Castleberry 14 V electric attitude indicator but something.