ADF or RMI?

When I quit flying some years back, RMI's were expensive and found generally
only found in the "heavy metal".

Now they seems quite common? What particular advantages do they offer? I
can't find any good articles (other than marketing) on them.

I was wondering if I should add one to a bird I plan to buy?

Thanks

Now they seems quite common? What particular advantages do they offer?

I think they make flying a DME arc easier. I've never used one but I recall
the King take-off CD's claiming that using an RMI made a DME arc a piece of
cake. Probably it's in the realm of the 8-tracks now.

Kobra

Sandel has a useful RMI description incorporated in their eHSI write-up.
http://www.sandel.com/ehsi_operating_1.htm
Read the 5-part series describing an entire flight.
---JRC---

"Tom S." wrote in message =
...
When I quit flying some years back, RMI's were expensive and found =
generally
only found in the "heavy metal".
=20
Now they seems quite common? What particular advantages do they offer? =
I
can't find any good articles (other than marketing) on them.
=20
I was wondering if I should add one to a bird I plan to buy?
=20
Thanks
=20

In article , Tom S.
wrote:

When I quit flying some years back, RMI's were expensive and found generally
only found in the "heavy metal".
Now they seems quite common? What particular advantages do they offer? I
can't find any good articles (other than marketing) on them.

They are great for identifying airway and approach intersections! You
only have to look at one instrument.

I was wondering if I should add one to a bird I plan to buy?

If you have the money and the panel space, yes.

"EDR" wrote in message
...
In article , Tom S.
wrote:

When I quit flying some years back, RMI's were expensive and found
generally
only found in the "heavy metal".
Now they seems quite common? What particular advantages do they offer? I
can't find any good articles (other than marketing) on them.

They are great for identifying airway and approach intersections! You
only have to look at one instrument.

I was wondering if I should add one to a bird I plan to buy?

If you have the money and the panel space, yes.

Any good references on "Flying the RMI"?

I put an RMI into our panel (a plug-in module for the Argus actually -
thanks Ebay) just for flying DME Arcs.

What else are RMI's good for? The RMI has two needles, each of which can
"point" to a navaid. As mentioned, this is good for identifying
intersections (although I confess I prefer DME and one nav source). Better
yet, you always know radial/bearing from/to a VOR/NDB. Good for locating
yourself on the map or flying a missed approach when you need to "find the
VOR" while climbing and turning. Just follow the needle.

Personally, I'd invest in an HSI before I invested in an RMI. I'd invest in
an Argus 7000 before I invested in an RMI (these things are amazing, and
amazingly cheap these days - $700 on EBay right now).

"Tom S." wrote in message
...
When I quit flying some years back, RMI's were expensive and found
generally
only found in the "heavy metal".

Now they seems quite common? What particular advantages do they offer? I
can't find any good articles (other than marketing) on them.

I was wondering if I should add one to a bird I plan to buy?

Thanks

In article , Tom S.
wrote:

Any good references on "Flying the RMI"?

Back in the late 1980's one of the aviation magazines had a series of
articles on flying with different navaid indicators. I will have to see
if I still have them.

"McGregor" wrote in message
ink.net...
I put an RMI into our panel (a plug-in module for the Argus actually -
thanks Ebay) just for flying DME Arcs.

What else are RMI's good for? The RMI has two needles, each of which can
"point" to a navaid. As mentioned, this is good for identifying
intersections (although I confess I prefer DME and one nav source). Better
yet, you always know radial/bearing from/to a VOR/NDB. Good for locating
yourself on the map or flying a missed approach when you need to "find the
VOR" while climbing and turning. Just follow the needle.

Personally, I'd invest in an HSI before I invested in an RMI. I'd invest
in
an Argus 7000 before I invested in an RMI (these things are amazing, and
amazingly cheap these days - $700 on EBay right now).

All the aircraft I'm looking at have an HSI. The plane I fly with my boss
has an RMI on his EFIS, but no on the co-pilot station. So far, we've never
used it.


I was wondering if I should add one to a bird I plan to buy?

Thanks

"Tom S." wrote in
:

All the aircraft I'm looking at have an HSI. The plane I
fly with my boss has an RMI on his EFIS, but no on the
co-pilot station. So far, we've never used it.

If you have an HSI, you certainly don't want to downgrade to an
RMI. The HSI gives you much more information and is easier to
interpret.

--
Regards,

Stan

"Stan Gosnell" me@work wrote in message
...
"Tom S." wrote in
:

All the aircraft I'm looking at have an HSI. The plane I
fly with my boss has an RMI on his EFIS, but no on the
co-pilot station. So far, we've never used it.

If you have an HSI, you certainly don't want to downgrade to an
RMI. The HSI gives you much more information and is easier to
interpret.


Thanks, Stan.

That's what I though, and I notice many of the more elaborate HSI's have RMI
indicators. I'm just wondering what the big deal is in having both, as many
aircraft do.

My original point is that RMI's seem more common nowadays, but were somewhat
rare when I began my hiatus from flying in 1989 (until this past summer). I
was under the (mistaken??) assumption that they made NDB approaches easier.

As I said, so far, I've not seen the boss use his.

I would like to know the whys and HOW's in any case.

Tom
--
"Transported to a surreal landscape, a young
girl kills the first woman she meets and then
teams up with three complete strangers to
kill again."
--Marin County newspaper's TV
listing for "The Wizard of Oz"