Today's Message Index:
----------------------
1. 12:05 AM - Engine compartment heating... (JOHNTMEY@aol.com)
2. 08:00 AM - Re: Engine compartment heating... (J Nelson)
3. 12:14 PM - GNS-530 vrs MX-20 (Larry E. James)
4. 02:31 PM - NACA VENTS (Chris Fordham)
5. 03:51 PM - Re: NACA VENTS (James Baldwin)
6. 04:15 PM - Re: NACA VENTS (Lee Logan)
7. 05:57 PM - Re: GNS-530 vrs MX-20 (Wernerworld)
8. 06:36 PM - Re: GNS-530 vrs MX-20 (Chirs Parkhurst)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Engine compartment heating... |
--> Rocket-List message posted by: JOHNTMEY@aol.com
To carry the thread (finding good source of cool air for cockpit) . . .
I don't get back to my airplane until after March 10. I hope someone out
there can do some fresh air temp checks before then. I was getting ready with
template to cut a NACA vent into the left front to install a source for
radio cooling air. hmmmm, maybe not.
I'll also poke my Fluke meter (temp) around inside the cockpit to see what
the inflow temp is.
Vince F..... I would be curious if your OAT (pickup in front) ever acts in
non-linear fashion... suspecting maybe heat soak ... or reflecting backflow at
certain airspeeds. If you slow down, does the temp OAT cool down ?
do not archive John Meyers N 5800
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Engine compartment heating... |
--> Rocket-List message posted by: "J Nelson" <u2nelson@prodigy.net>
I have my NACA ducts for pilot cold air on both sides of the fuselage,
aligned with the cowl split line. I also have one under the wing for the
rear seat pax. All of them flow lots and lots of cold air, no heating at
all on the sides that I can detect. They flow so much air, I generally only
have one going at a time, so two is overkill. However two is nice on the
ground, as I have noticed a slight cross wind can blank one of them out as
the prop blast gets deflected. Anyway, no problems with side mounted NACA
ducts for cold air, even on the ground.
Greg Nelson, N1444X
-----Original Message-----
From: owner-rocket-list-server@matronics.com
[mailto:owner-rocket-list-server@matronics.com] On Behalf Of
JOHNTMEY@aol.com
Sent: Tuesday, February 28, 2006 12:04 AM
Subject: Rocket-List: Engine compartment heating...
--> Rocket-List message posted by: JOHNTMEY@aol.com
To carry the thread (finding good source of cool air for cockpit) . . .
I don't get back to my airplane until after March 10. I hope someone out
there can do some fresh air temp checks before then. I was getting ready
with
template to cut a NACA vent into the left front to install a source for
radio cooling air. hmmmm, maybe not.
I'll also poke my Fluke meter (temp) around inside the cockpit to see what
the inflow temp is.
Vince F..... I would be curious if your OAT (pickup in front) ever acts in
non-linear fashion... suspecting maybe heat soak ... or reflecting backflow
at
certain airspeeds. If you slow down, does the temp OAT cool down ?
do not archive John Meyers N 5800
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | GNS-530 vrs MX-20 |
--> Rocket-List message posted by: "Larry E. James" <larry@ncproto.com>
Hello All,
I posted this to the Avionics-List and thought this
group might be a good help. I have been planning on
installing a Garmin GNS-530 for quite some time, and
before I make the final commitment I want to address one
final option; installing instead an MX-20 with all the
appropriate additions to render the same functions as
the 530. To make this an apples-to-apples (sort of)
comparison, I am making the assumption that I would
install a nav/com and GPS with the MX-20.
I am building a tandem 2-place (Harmon Rocket) with the
primary mission statement of fun cross-country work. I
want to minimize pilot workload and maximize safety and
fun. I desire to have weather and may install traffic
at a later time. Given the limited panel space of the
Rocket; I only want one "screen"; either the 530 or
MX-20. I am also partial to round gages and am not
interested in large displays for everything (I know this
is a debatable subject and this is my preference).
The reason for this query is that I have heard the 530
has barely enough computing power to handle weather and
that the MX-20 does this much better and with a better
display. The MX-20 is also a better platform to make
changes to later on.
So my questions are:
1) any suggestions on the best equipment to integrate
with the MX-20 to allow its function to match that of
the 530 ??
2) any input on which of these options offers the best
performance ??
3) any input on which of these options offers the most
flexibility ??
4) any input on which of these options offers the
easiest use ??
Thanks a ton in advance !!!!
--
Larry E. James
Bellevue, WA Harmon Rocket II
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Rocket-List message posted by: "Chris Fordham" <fconsult@telus.net>
James
For what its worth ,my RV4 has a Naca vent just above the rear canopy
rail in the back seat and the air flows out of the vent instead of blowing
in. It is allowing warm air to escape fom inside instead of cooling air
flowing in.
Chris
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Rocket-List message posted by: James Baldwin <jamesbaldwin@dc.rr.com>
Chris -
I'm sure this is not the first time this subject has been discussed and
there are many different results with similar vent locations. Yours is
yet another result that must have some explanation. Is your fuselage
vented elsewhere exhausting the cockpit air? Obviously the pressure
inside the cockpit is greater than the local pressure outside the vent,
so I'd be interested to know what your strategy was during building. Of
course, maybe you like it the way it is? JBB.
Chris Fordham wrote:
>--> Rocket-List message posted by: "Chris Fordham" <fconsult@telus.net>
>
>James
> For what its worth ,my RV4 has a Naca vent just above the rear canopy
>rail in the back seat and the air flows out of the vent instead of blowing
>in. It is allowing warm air to escape fom inside instead of cooling air
>flowing in.
>
> Chris
>
>
>
>
>
>
>
>
>
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Rocket-List message posted by: "Lee Logan" <leeloganster@gmail.com>
Another good vent location that will do the same thing is to louver one of
both of your aft inspection plates (just under the stabilizer on my RV-4).
Will make your vents more effective in that it will draw air through the
fuselage with a venturi effect.
On 2/28/06, Chris Fordham <fconsult@telus.net> wrote:
>
> --> Rocket-List message posted by: "Chris Fordham" <fconsult@telus.net>
>
> James
> For what its worth ,my RV4 has a Naca vent just above the rear
> canopy
> rail in the back seat and the air flows out of the vent instead of blowing
> in. It is allowing warm air to escape fom inside instead of cooling air
> flowing in.
>
> Chris
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: GNS-530 vrs MX-20 |
--> Rocket-List message posted by: "Wernerworld" <russ@wernerworld.com>
Larry,
If you go with an MX20 you will still need a GPS to drive it. I use a CNX80
(GNS480) and wouldn't think of trading it for a 530. This combo will blow
the doors off the 530. Problem is, expense. What GPS do you plan to drive
the MX20?
Easiest to use. Keep in mind that the MX20 is largely just a display. You
can put weather, approach charts, radar, on it in addition to the basic gps
course info. The GPS will largely determine how easy/difficult it is to
use. I believe that it is a matter of training. On my CNX I can do about
anything complex in the way of flight planning or just go from A to B or
direct to. The 530 is probably easier to run, as it is seriously less
capable. The MX20 will work with nearly any GPS.
Flexibility. If you go with the MX20, you can interface nearly anything to
it. Weather is a bit more difficult as you need Garmins $5000 box to do it.
You'll need a box for anything, but that one seems a bit high. The more
stuff you want to interface to it, the price of the MX20 goes up and the
speed of the box goes down. The basic unit will not do weather. You need
the next box up (I think there are 3 versions) to get the weather input.
This can also be an upgrade from the base unit later. Either way, about
$1500 over base price. ChaChing!
Cheapest way to get weather is to get a 396 handheld!
Hope all that makes some sense.
Russ
HRII
----- Original Message -----
From: "Larry E. James" <larry@ncproto.com>
<rocket-list@matronics.com>
Sent: Tuesday, February 28, 2006 1:14 PM
Subject: Rocket-List: GNS-530 vrs MX-20
> --> Rocket-List message posted by: "Larry E. James" <larry@ncproto.com>
>
> Hello All,
> I posted this to the Avionics-List and thought this
> group might be a good help. I have been planning on
> installing a Garmin GNS-530 for quite some time, and
> before I make the final commitment I want to address one
> final option; installing instead an MX-20 with all the
> appropriate additions to render the same functions as
> the 530. To make this an apples-to-apples (sort of)
> comparison, I am making the assumption that I would
> install a nav/com and GPS with the MX-20.
>
> I am building a tandem 2-place (Harmon Rocket) with the
> primary mission statement of fun cross-country work. I
> want to minimize pilot workload and maximize safety and
> fun. I desire to have weather and may install traffic
> at a later time. Given the limited panel space of the
> Rocket; I only want one "screen"; either the 530 or
> MX-20. I am also partial to round gages and am not
> interested in large displays for everything (I know this
> is a debatable subject and this is my preference).
>
> The reason for this query is that I have heard the 530
> has barely enough computing power to handle weather and
> that the MX-20 does this much better and with a better
> display. The MX-20 is also a better platform to make
> changes to later on.
> So my questions are:
> 1) any suggestions on the best equipment to integrate
> with the MX-20 to allow its function to match that of
> the 530 ??
> 2) any input on which of these options offers the best
> performance ??
> 3) any input on which of these options offers the most
> flexibility ??
> 4) any input on which of these options offers the
> easiest use ??
>
> Thanks a ton in advance !!!!
> --
> Larry E. James
> Bellevue, WA Harmon Rocket II
>
>
>
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | GNS-530 vrs MX-20 |
--> Rocket-List message posted by: "Chirs Parkhurst" <c.parkhurst@charter.net>
Larry
I'll ditto Russ' comments. I built a 'traditional' panel on my F-1 and
stacked a -480/196/and PS CD/Audio panel. I think you get the most bang for
the buck out of the 480 - a little harder to use (relative) but a lot of
functionality. Also, if you're not in a big hurry to buy one you can
sometimes pick them up fairly cheap (I just got mine with all the updates
and warranty for $6900!!). What I did to save space was to run the GTX-33
(remote transponder) on my avionics panel which I can control through the
480. I also installed a Blue Mountain G3 light in place of an HIS in my
instrument "6 pack". I use that as my indicator/HSI and as a GPS/SUA/Map
back up to the Garmin. Satellite wx is nice I suppose but expensive option
and you can always add the box to your avi panel later if had the 480. If
you spend a lot of time flying VFR in/around class B airspace then you might
want to consider a Mode-S transponder (GTX-330/33). I've used it a number of
times in other aircraft and it's actually prevented a couple of potential
close calls. Happy to send you a picture of my set up if you contact me off
line....good luck
Chris
-----Original Message-----
From: owner-rocket-list-server@matronics.com
[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Larry E. James
Sent: Tuesday, February 28, 2006 12:14 PM
Subject: Rocket-List: GNS-530 vrs MX-20
--> Rocket-List message posted by: "Larry E. James" <larry@ncproto.com>
Hello All,
I posted this to the Avionics-List and thought this
group might be a good help. I have been planning on
installing a Garmin GNS-530 for quite some time, and
before I make the final commitment I want to address one
final option; installing instead an MX-20 with all the
appropriate additions to render the same functions as
the 530. To make this an apples-to-apples (sort of)
comparison, I am making the assumption that I would
install a nav/com and GPS with the MX-20.
I am building a tandem 2-place (Harmon Rocket) with the
primary mission statement of fun cross-country work. I
want to minimize pilot workload and maximize safety and
fun. I desire to have weather and may install traffic
at a later time. Given the limited panel space of the
Rocket; I only want one "screen"; either the 530 or
MX-20. I am also partial to round gages and am not
interested in large displays for everything (I know this
is a debatable subject and this is my preference).
The reason for this query is that I have heard the 530
has barely enough computing power to handle weather and
that the MX-20 does this much better and with a better
display. The MX-20 is also a better platform to make
changes to later on.
So my questions are:
1) any suggestions on the best equipment to integrate
with the MX-20 to allow its function to match that of
the 530 ??
2) any input on which of these options offers the best
performance ??
3) any input on which of these options offers the most
flexibility ??
4) any input on which of these options offers the
easiest use ??
Thanks a ton in advance !!!!
--
Larry E. James
Bellevue, WA Harmon Rocket II
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|