Seeking Advice - Sell OR Keep N9353M?

[Vance Harral]

4 hours ago, EricJ said:

After a few seconds I realized I'd much rather have the HSI to keep pointed in the right direction, so switched it back and used the TC for bank.

This is a pretty common reaction when I fail a G5 ADI on an instrument student, and the HSI reverts to an ADI (automatically or manually).  An HSI presentation is very nice, and once you get used to having one, it's more distracting to live without than it seems like it ought to be.  Nonetheless, I can't really get on board with advising instrument pilots to fly with no attitude information so they can retain an HSI presentation, even if they have good traditional partial panel skills.  Better to retain the ADI to keep the greasy side down (aviate first), declare, ask ATC for vectors to an approach, then fly the lateral/vertical course guidance depicted on the ADI once established.

As @Jackk notes, almost everything you get from a G5 HSI is technically available on the ADI: heading (and heading bug), ground track, selected courseb, lateral and vertical deviation.  But it's not as intuitive, at least not for most of us.  I can do an approach reasonably well with only the ADI, but it feels in some respects like going back to an old-fashioned CDI display for nav information: a certain set of mental gymnastics is required to translate what is depicted on the display vs. my horizontal situation with respect to course guidance.

[Pinecone]

7 hours ago, Jackk said:

They do this during recurrent often, they fail my PFD and I fly the standbys, they will always make us fly “raw data” without the FD too,  situational awareness doesn’t really change, my scan just becomes more busy, this requires a little more mental load and if anything takes a little away from SA.

That is the point.  You have to work much harder to maintain that SA.  The HSI provides a lot more SA for a single change.

[Jackk]

15 hours ago, Pinecone said:

That is the point.  You have to work much harder to maintain that SA.  The HSI provides a lot more SA for a single change.

 Other way around, I need to use more mental energy when I don’t have the FD which takes away from my SA.

 

 

[1980Mooney]

A lot of drift here. Not sure what it has to do with the OP’s topic…..

I thought my finger slipped into the Avionics/Panel Discussion section. 

[Pinecone]

On 7/30/2025 at 11:36 AM, Jackk said:

 Other way around, I need to use more mental energy when I don’t have the FD which takes away from my SA.

 

 

Are you flying an FD without an HSI?

[Jackk]

13 hours ago, Pinecone said:

Are you flying an FD without an HSI?

Both

 

PFD / ND etc

Edited Tuesday at 04:10 AM by Jackk

[Pinecone]

DUH>

YES, an FD reduces the task loading so your SA goes up.  But without the HSI, you would lose much of that benefit.

As I have said before, if you can only have ONE, put in an HSI.

BTW, a good autopilot helps even more than an FD.  Another DUH.