and now I need a new overlay for the left panel
Did you consider flush mounting them?
Is your Cherokee a 140?
it’s not 140, it’s 181
Thank god you have the fantabulous tapered wing so you can float on landing.
But really... two things that will always be underestimated on avionics work are Time and Cost. It's frustrating now, but in a month you'll have forgotten it.
But you have 4 hours of back up power from the built in battery. YesIf the HSI dies you still have CDI information on the attitude display. If the GAD29B dies you lose any CDI display information.
Don't forget the GMU11 magnetometer data displays on both the HSI and Attitude indicators. If the GMU11 dies, it will display GPS track instead. If you lose GPS (like GPS outage) and the GMU all you have left is the whisky compass and the attitude indicator (I believe)
Probably the most inconvenient failure is complete electrical power loss as the GMU11 drops offline along with any external GPS. Just for that reason we will not be hooking the attitude indicator to the GTN via RS232 but installing an antenna hooked to the attitude indicator's internal GPS receiver.
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No DG?View attachment 60290
Your panel is coming along nicely. Good things take time. Here is a pic of my Archer upgrade with a G5 HSI. I still need to have the G5 HSI heading bug issue resolved, but have not been back to the shop yet. I'm having too much fun with the GPSS...love it.
Question- Is your G5 HSI connected to the battery bus? My G5 first powers up when the Battery switch is turned on. It may need to come on first by design.
The G5 HSI can be switched from HSI mode to PFD mode. It is currently showing PFD mode which makes for a great back-up AI that works even when you loose electical power.No DG?
I did not know that, neat.The G5 HSI can be switched from HSI mode to PFD mode. It is currently showing PFD mode which makes for a great back-up AI that works even when you loose electical power.
View attachment 60290
Your panel is coming along nicely. Good things take time. Here is a pic of my Archer upgrade with a G5 HSI. I still need to have the G5 HSI heading bug issue resolved, but have not been back to the shop yet. I'm having too much fun with the GPSS...love it.
Question- Is your G5 HSI connected to the battery bus? My G5 first powers up when the Battery switch is turned on. It may need to come on first by design.
So here are the two primary modes of failure:
1- vacuum- almost a non-event as it does kill my autopilot, but I honestly haven't been relying on the vacuum AI for the primary scan anyway. I'll just have to hand fly and that should be pretty simple given my panel.
2- electrical failure - obviously an "event"! Let's look for the weak link shall we. One thing I love about the G5's is their huge independent battery. That's great. Should easily have a solid AI for the remainder of the flight. But wait... How about the HSI??? It's got power but will it work? Well, this where my head scratching starts. Assuming main-ship battery has depleted the GMU-11 magnetometer and the GAD29b will fail. Now my HSI is gone. Will it show track? Not if the IFD550, GMU-11, and GAD29B are all dead. So I'll essentially be left with an AI (OK 3 if you count the dual G5's and the vacuum AI) but zero NAV info. In this case declare an emergency and get vectored to the nearest airport.
I think the next step I need to take is to find out the power (amp) draw for each piece of equipment. Figure out which pieces are essential to get down and land and have a known time frame for that to happen. One thing I love about the JPI 830 is that I set a low voltage alarm, so I am instantly notified of an alternator failure.
I don't mean to hijack the thread. I just think as we transition more and more to electric panels it's super important to know the results of that failure and the steps to take to turn an emergency into a non-event. Power management will be critical with the last resort being what to do if/when it's all gone.
when I get the plane back and fly with the master off, think will have a good idea on what happens in the DR mode. no way to find out pitot failure, but I will switch to alternate static and see how it affects G5
when I get the plane back and fly with the master off, think will have a good idea on what happens in the DR mode. no way to find out pitot failure, but I will switch to alternate static and see how it affects G5
ha, that's a good idea for checking what happens when GMU and GAD is offline. I like the killing alternator too to see how much juice my battery has in case the alternator decides to take a crapYou can just pull the circuit breakers, that way you have a working transponder, etc.
You can just pull the circuit breakers, that way you have a working transponder, etc.
ha, that's a good idea for checking what happens when GMU and GAD is offline. I like the killing alternator too to see how much juice my battery has in case the alternator decides to take a crap
It’s connected to master. Most PFD I have seen is connected to master, like G1000. I may have the same issue as yours, went to th shop yesterday, the AP won’t follow the heading
bug on the ground. It goes on a full right deflection.... avionics guy said he will look into it. Ur suspicions may be correct, something wrong with the wiring instructions from Garmin may be.
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Please let me know what you find on the Heading bug issue. I have a feeling the Century AP "DG Select" ground jumper needs to be removed because we went from DG to HSI.
I have no idea why mine is connected to the Battery bus and not the Avionics Master. I will be asking the shop tomorrow because I now have a bigger problem. My G5 HSI display does not come on at all with Battery bus power or even by pushing the unit power button. Hope they have a spare unit in stock.
You know that is easy to calculate?
My RG-35AXE Concorde battery is rated at 33 amp hours. Drawing 33 amps it would last about an hour.
Old lights in my plane burn a lot of amps.
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It’s connected to master. Most PFD I have seen is connected to master, like G1000.