Strange DG

poadeleted21

poadeleted21

Touchdown! Greaser!
Joined
Aug 18, 2011
Messages
12,332
The DG here is like one of the older (AN?) style but it has like a compass rose around it, hard to see from the photo but, it's all i got. Anybody know what the deal with this is? In person, it looks fairly modern

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Your picture didn't come through, but I'm guessing you're talking about one of those ancient instruments which looks like a mag compass and rotates around the z-axis rather than a vertical card presentation. We had one of those on one of our Aztecs when I was flying 135 about 35 years ago, and it drove the pilots nuts. I suppose if it's in your own plane and it's the only one you fly, you'd get used to it -- and flying with it all the time might make mag compass interpretation easier if the gyro gives up. Other than that, I recommend staying away from them -- too easy to get confused and turn the wrong way.
 
Never have seen one like it, is there a chance the outer bezel is some sort of heading bug?? Is that knob between it and the altimeter a means to rotate it??
 
Ron Levy said:
Your picture didn't come through, but I'm guessing you're talking about one of those ancient instruments which looks like a mag compass and rotates around the z-axis rather than a vertical card presentation.
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Probably depends on what you are viewing it on.....I can see his photo on my iPad, but it doesn't show up when am on my desktop.

The compass he is asking about is one of those old ones that looks like an ADF with a vertical card and a needle.
 
Fearless Tower said:
The compass he is asking about is one of those old ones that looks like an ADF with a vertical card and a needle.
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That would probably be an RMI, not just a heading indicator, with the needle pointing to the ADF or VOR station (some have two needles and show either both ADF and VOR or two VOR's simultaneously). Solves your mag bearing issues for you without having to twist the little knob to rotate the card as well as providing a backup heading indicator. Light GA pilots don't see them much other than on the IR written test.
 
Pic attached. Yes, if you turn the knob, it rotates the center heading. not sure about the outside number. It has the same sort of orientation as whiskey compass (i.e. you're reading the the side of a disc and can't see all the headings, only the ones that happen to be in your view) But, it looks more modern than those old ones typically found in 1950s era aircraft and has heading markings all the way around it too.
 

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bartmc said:
Pic attached. Yes, if you turn the knob, it rotates the center heading. not sure about the outside number.
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That's the type I was talking about originally. IIRC, they were designed to give the same presentation as a whiskey compass, including the "backwards" rotation, so pilots only had to know one way to read them both. Fortunately, the industry figured out that was a bad idea and stopped making them that way a very long time ago, and most of them in those older planes have been replaced by what we now call a standard heading indicator.
 
I see....we are looking at two different instruments. I thought he was asking about the RMI looking thing on the lower right side. I have seen some heading indicators like that in some ancient WWII era panels.

Looking at the correct DG, I would agree that it is related to an early autopilot.

Sent from my iPad using Tapatalk HD
 
Fearless Tower said:
I see....we are looking at two different instruments. I thought he was asking about the RMI looking thing on the lower right side. I have seen some heading indicators like that in some ancient WWII era panels.

Looking at the correct DG, I would agree that it is related to an early autopilot.

Sent from my iPad using Tapatalk HD
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I think that's just the ADF indicator

I believe the WWII era you're refering to are a different beast

like this one

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The one in the OP, looks to be "more modern" than the one in the picture directly above.
 
AdamZ said:
So do I take it you bought a BO?
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Guilty. Getting the annual polished up on it now. I have no idea how to fly it.
Trying to get a dual yoke and checked out in it before the ONLY CFI I could find with Bo experience goes away on a LONG vacation.

Threatening to make a 2 day run from MT to KOSH and various points in between to get the job done if the plane and yoke make it here on time.

I know how Hogg felt.

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SCCutler said:
Bart:

Don't you feel like da MAN!

That is sweet.
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Yup, apparently I wasn't paying enough for insurance, fuel and parts.
Actually I was pleasantly surprised by the insurance, 50 bucks more per month that's with ZERO Retract time and ZERO HP time and no IR yet (Just about done).

It's old, 1960 M35 but it's very clean, looks like it just rolled off the assembly line. Tip tanks, like new leather interior. 500 SMOH 3200 TT getting a good working over starting today.

I have the deposit down on it, insurance and balance due waiting, Lien research in progress and making sure nothing major comes out of the annual inspection. The stars seem to be lining up right so far, hopefully the IA doesn't find a deal breaker. Then I gotta go figure out how to fly it.
 
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Do the folks on the Piper Forum know you've defected yet? LOL
Congrats M35s are real beauties.
 
AdamZ said:
Do the folks on the Piper Forum know you've defected yet? LOL
Congrats M35s are real beauties.
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Yeah, they all told me about how I'd need to sell a kidney to buy parts and that the tail was going to fall off just after the passengers in the back seat threw up on me due to an unpreventable dutch roll. The folks over on beechtalk say the Comanche is a flimsy built POS not even worthy of being spoken about in the same sentence as a Bonanza. (I'm kidding, well over exaggerating, about both of course) I was looking hard at a Comanche but just couldn't make it work. EdFred's about a week late. I would have seriously considered that plane. The one I bought doesn't have the panel I want in it, but I can make it work until my wallet rebounds. I think I'd rather have the 540 over the 470 too. But I understand the IO-470 is one of the better Contisaurases even with the 1500hr TBO.
 
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Bart, two words.

U suck.

Technically I guess that's one word.

Seriously dude, congrats.
 
Bart:

You take care of it and fly it often, that 470 is good for 2500 hours.

And that is surely a beautiful bird!

Wait'll you see how easy it is to fly - on landing, you'll think you went to heaven, and it can handle more crosswind than you'd ever imagine.
 
Bart,
I'll have to get a pic of my uncle's bo, almost identical paint scheme. You have one seriously nice machine coming your way, and as stated above and I said on the piper board, landings are a thing of beauty. Just start planning your descents a bit further out, they don't like to slow down and come down at the same time in any fashion.
 
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