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The Perfect Panel...how to decide - was GNS-430W
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orchidman

Joined: 10 Jul 2006
Posts: 277
Location: Oklahoma City - KRCE

Posted: Sat May 26, 2007 10:38 am Post subject: Re: The Perfect Panel...how to decide - was GNS-430W

 	  Tim Olson wrote: 	
		  On layout, I will just give a couple of observations.

.

.

I hesitated to even reply to the thread on positioning because although

I am now very set in my ways as to how I like the layout, I'm also not

a "my way or the highway" (in the sky... ) kind of guy. 

.

.



I'm sure you'll get critiques that will help.

Tim Olson - RV-10 N104CD - Flying

do not archive

	


Tim,

Thanks as always for the details and background as to your choices.  That is what helps people like myself make better educated decisions.

At my state, right now all comments are taken very seriously.  I think comments from those currently flying and flying IFR are VERY imortant. 

Gary

_________________
Gary Blankenbiller
RV10 - # 40674
(N2GB Flying)

orchidman

Joined: 10 Jul 2006
Posts: 277
Location: Oklahoma City - KRCE

Posted: Sat May 26, 2007 10:48 am Post subject: Re: The Perfect Panel...how to decide - was GNS-430W

 	  rene(at)felker.com wrote: 	
		  

As far as the vertical scan, disorientation issue is concerned, I am

concerned, just as I am today in the 182.  Tilting of the head either

sideways or up and down can lead to disorientation. I will not know until I

get it in the plane and fly, but I think I will be able to scan my primary

and secondary instruments with little or no head movement.  Something I

practice today in the 182....

Rene'

801-721-6080

-- 	


When I was flying the old steam gages, I think I had less head movement then I do right now looking at the monitor as I type this reply.



It looks like I will be needing to start saving all the large pieces of cardboard for some time so I can make a half dozen full scale mockups.  Then start flying each one.  Guess I will have to lock the door.  If my kids see me trying to fly cardboard they would call 911 and send me off to the funny farm

_________________
Gary Blankenbiller
RV10 - # 40674
(N2GB Flying)

bhughes(at)qnsi.net
Guest

Posted: Sat May 26, 2007 5:03 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

My understanding is you write a test plan and submit it to the local

FSDO. Yes there is always a trail of paperwork. I believe VRF to IFR

requires proof of calibration and a revisit. Might not be the correct

term. Not sure about engine change. Different engine type or just a

replacement? But we still have the freedom to change anything we like.

Just need to follow the rules and ask questions first. Unless you're a

real A&P and stay current on the regs.



Darn flight simulator is hard to trim.. eer.



Bobby

40116

(spray can primer)



 



--

jjconstant

Joined: 17 Mar 2007
Posts: 3
Location: Oakland, CA

Posted: Tue May 29, 2007 10:23 am Post subject: Re: The Perfect Panel...how to decide - was GNS-430W

Hi there. I'm an RV7A builder new to this forum but turned on to it by the recent RV Hotline link. I have a dual GRT system (Horizontally laid out) and I want Wx but have been going back and forth as to whether its better to have it integrated into the GRT for $1500 and installation now while everything is easily accessible, or to wait and get some kind of portable (Garmin x96 or tabet) and have an easy upgrade path with that. Thanks in advance for all opinions.



Jeremy Constant

Tim Olson

Joined: 25 Jan 2007
Posts: 2882

Posted: Tue May 29, 2007 10:57 am Post subject: The Perfect Panel...how to decide - was GNS-430W

Jeremy,



Weather can be done in so many way's it's amazing these days.

I'm partial to the integrated methods whenever possible for

EFIS systems, as a well-integrated EFIS will even out-do the

Radio + MFD solutions like a GNS-480 + MX-20, just from a

complete functionality standpoint.



Here is a link to a portion of a write-up I did on some panel

stuff, and one of the topics is on-EFIS Wx versus other

external Wx methods.  Remember, it's just my opinion, but

I think there is value to be had there.



Here's the link.  The page is quite long, but that

section is pretty short.



http://www.myrv10.com/tips/panel/Design_Layout.html#Integrated_WX



Here is the text-only from that too:

-----------------------------------------------

Integrated Wx to your EFIS, or portable Wx?

So you want to know why you would want to buy a more expensive, but 

integrated Wx system for your panel, instead of just buying a portable 

like a 396/496 and calling that good. Those units are excellent options 

for some people, and they do a great job, but, there is LOTS more to 

consider when purchasing such a system.  Here is an example, and I think 

that although I'm using my system as an example, it would be the same 

for systems such as GRT EFIS, and some others:



If you have it integrated, you're flying along, there's storm cells 

ahead scattered around.  You're VFR (or IFR) and you want to avoid any 

of them.  Your COURSE to the next waypoint is on-screen,and you can see 

that the pink line goes right into the area of the cell.  On the Chelton 

at least, your actual TRACK is also displayed on screen, and therefore 

you know your HEADING, your TRACK, and your COURSE...all on that same 

screen.  To avoid the storm, you put the EFIS, which is commanding your 

Autopilot into HEADING mode to avoid the cell, spin the proper heading 

in, and watch your TRACK change.  Nope, that didn't quite take you clear 

enough for comfort, so you turn your heading bug some more.  Now your 

track looks like it'll take you well clear.  The feedback in flight 

given by it's integration was very valuable. Your COURSE is still set 

right through the storm, and you'll adjust that later by re-initiating 

your position to that next waypoint, but that's done once you're around 

the side of the cell.  For now, you clearly can see that your current 

track avoids any danger.



The weather on the portable is fantastic stuff, but, if you have the 

opportunity to integrate it into your EFIS, you won't have to estimate 

and interopolate where you are tracking towards, and where the weather 

is, and enter courses and waypoints and keep the handheld programmed 

with all deviations, and things like that.  You only have one system to 

manage and it's much tighter in integration and less work to keep on top 

of it...especially nice if you're flying IFR.



------------------------------------------------

Tim Olson - RV-10 N104CD - Flying

do not archive

jjconstant wrote:

 	  Quote: 	
		   

 <jjconstant(at)comcast.net>

 

 Hi there. I'm an RV7A builder new to this forum but turned on to it

 by the recent RV Hotline link. I have a dual GRT system (Horizontally

 laid out) and I want Wx but have been going back and forth as to

 whether its better to have it integrated into the GRT for $1500 and

 installation now while everything is easily accessible, or to wait

 and get some kind of portable (Garmin x96 or tabet) and have an easy

 upgrade path with that. Thanks in advance for all opinions.

 

 Jeremy Constant

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=115410#115410

apilot2(at)gmail.com
Guest

Posted: Tue May 29, 2007 11:41 am Post subject: The Perfect Panel...how to decide - was GNS-430W

Tim.,

Just for a mildly opposing point of view. If you have enough

thunderstorm activity to avoid, you want to be either giving a very

wide berth where 5-10 degrees of heading variance doesn't matter, or

you want a stormscope or better onboard for real time weather, not

delayed by 2-15 min.

All the XM variants of weather are excellent for up to date route

planning and deviation, but are not responsive enough to pick a course

through storms, IMHO.

The other factor is that no one knows how long XM/Sirrius etc are

going to stay in business, so how much $$ do you want to tie up in a

system that may be obsolete next year?

Me, I don't need to do personal flying up close and personal to

storms. If it is business, I either allow enough time for weather

delays, or go commercial.

On 5/29/07, Tim Olson <Tim(at)myrv10.com> wrote:

 	  Quote: 	

 Jeremy,

 Weather can be done in so many way's it's amazing these days.

 I'm partial to the integrated methods whenever possible for

 EFIS systems, as a well-integrated EFIS will even out-do the

 Radio + MFD solutions like a GNS-480 + MX-20, just from a

 complete functionality standpoint.

 Here is a link to a portion of a write-up I did on some panel

 stuff, and one of the topics is on-EFIS Wx versus other

 external Wx methods.  Remember, it's just my opinion, but

 I think there is value to be had there.

 Here's the link.  The page is quite long, but that

 section is pretty short.

 http://www.myrv10.com/tips/panel/Design_Layout.html#Integrated_WX

 Here is the text-only from that too:

 -----------------------------------------------

 Integrated Wx to your EFIS, or portable Wx?

 So you want to know why you would want to buy a more expensive, but

 integrated Wx system for your panel, instead of just buying a portable

 like a 396/496 and calling that good. Those units are excellent options

 for some people, and they do a great job, but, there is LOTS more to

 consider when purchasing such a system.  Here is an example, and I think

 that although I'm using my system as an example, it would be the same

 for systems such as GRT EFIS, and some others:

 If you have it integrated, you're flying along, there's storm cells

 ahead scattered around.  You're VFR (or IFR) and you want to avoid any

 of them.  Your COURSE to the next waypoint is on-screen,and you can see

 that the pink line goes right into the area of the cell.  On the Chelton

 at least, your actual TRACK is also displayed on screen, and therefore

 you know your HEADING, your TRACK, and your COURSE...all on that same

 screen.  To avoid the storm, you put the EFIS, which is commanding your

 Autopilot into HEADING mode to avoid the cell, spin the proper heading

 in, and watch your TRACK change.  Nope, that didn't quite take you clear

 enough for comfort, so you turn your heading bug some more.  Now your

 track looks like it'll take you well clear.  The feedback in flight

 given by it's integration was very valuable. Your COURSE is still set

 right through the storm, and you'll adjust that later by re-initiating

 your position to that next waypoint, but that's done once you're around

 the side of the cell.  For now, you clearly can see that your current

 track avoids any danger.

 The weather on the portable is fantastic stuff, but, if you have the

 opportunity to integrate it into your EFIS, you won't have to estimate

 and interopolate where you are tracking towards, and where the weather

 is, and enter courses and waypoints and keep the handheld programmed

 with all deviations, and things like that.  You only have one system to

 manage and it's much tighter in integration and less work to keep on top

 of it...especially nice if you're flying IFR.

 ------------------------------------------------

 Tim Olson - RV-10 N104CD - Flying

 do not archive

 jjconstant wrote:

 > 

 > <jjconstant(at)comcast.net>

 >

 > Hi there. I'm an RV7A builder new to this forum but turned on to it

 > by the recent RV Hotline link. I have a dual GRT system (Horizontally

 > laid out) and I want Wx but have been going back and forth as to

 > whether its better to have it integrated into the GRT for $1500 and

 > installation now while everything is easily accessible, or to wait

 > and get some kind of portable (Garmin x96 or tabet) and have an easy

 > upgrade path with that. Thanks in advance for all opinions.

 >

 > Jeremy Constant

 >

 >

 >

 >

 > Read this topic online here:

 >

 > http://forums.matronics.com/viewtopic.php?p=115410#115410

 >

 >

Tim Olson

Joined: 25 Jan 2007
Posts: 2882

Posted: Tue May 29, 2007 12:04 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

Very very valid point Kelly, but you're still better off having

it right on the screen that you're navigating by.  I also

am a proponent of VFR flight in conditions where there is more

than just one area of storms.  It's better to be below them,

with some visibility, picking the way around the bad spots

than trying to do it IFR and route around things you can't

see.



But, nobody would say that a 5 or 10 or 15 minute old weather

picture isn't worth a hell of a lot more than picking it

off the FBO's PC and then launching for a 4 hour flight.



Just over a week ago I had the perfect opportunity to use

WSI for use in cell avoidance.  I visually had 20 mile

viz, and could easily see the area of cells, all in a

fairly solid line but with one rain-only weak area in

the middle, like a bridge.  The WSI was able to confirm

for me that my eyes weren't lying...the storm area was

literally only about 5 miles thick....less than 2 minutes of

time to pass through cleanly.  Had I not had the WSI

picture, I would have a very lengthy wait to ensure I

wasn't going into the unknown.  Having it allowed

me to stay visual, have a smooth ride, and not even

get wet as the rain depicted didn't hit the ground.



As far as tying up money in a system that may die...well,

I'd rather tie up money in a system that works really

well and may die than a system that doesn't work nearly

so well but may die.  There is always risk with buying

equipment of this type that the system may not be

available.  Heck, we have to worry about ILS's going

away over time, TIS going away, ADS-B not being implemented

within a few years....it's endless.  You need to make

your decisions based on what's out there right now because

what's in the future is unknown.  In fact, with the predicted

sunspot activity coming soon, who knows if GPS's will even

be useful for approaches for a while during that period.



Weather is a fantastic option to have in a plane.  That

doesn't mean anything that should encourage someone

to come close to storm cells.  Avoidance is what it's

all about, and the picture may not be updated quick enough,

but it's leagues better than the alternative of not knowing

the info.



Tim Olson - RV-10 N104CD - Flying

do not archive

Kelly McMullen wrote:

 	  Quote: 	
		   

 

 Tim.,

 Just for a mildly opposing point of view. If you have enough

 thunderstorm activity to avoid, you want to be either giving a very

 wide berth where 5-10 degrees of heading variance doesn't matter, or

 you want a stormscope or better onboard for real time weather, not

 delayed by 2-15 min.

 All the XM variants of weather are excellent for up to date route

 planning and deviation, but are not responsive enough to pick a course

 through storms, IMHO.

 The other factor is that no one knows how long XM/Sirrius etc are

 going to stay in business, so how much $$ do you want to tie up in a

 system that may be obsolete next year?

 Me, I don't need to do personal flying up close and personal to

 storms. If it is business, I either allow enough time for weather

 delays, or go commercial.

 

 On 5/29/07, Tim Olson <Tim(at)myrv10.com> wrote:

> 

>

> Jeremy,

>

> Weather can be done in so many way's it's amazing these days.

> I'm partial to the integrated methods whenever possible for

> EFIS systems, as a well-integrated EFIS will even out-do the

> Radio + MFD solutions like a GNS-480 + MX-20, just from a

> complete functionality standpoint.

>

> Here is a link to a portion of a write-up I did on some panel

> stuff, and one of the topics is on-EFIS Wx versus other

> external Wx methods.  Remember, it's just my opinion, but

> I think there is value to be had there.

>

> Here's the link.  The page is quite long, but that

> section is pretty short.

>

> http://www.myrv10.com/tips/panel/Design_Layout.html#Integrated_WX

>

> Here is the text-only from that too:

> -----------------------------------------------

> Integrated Wx to your EFIS, or portable Wx?

> So you want to know why you would want to buy a more expensive, but

> integrated Wx system for your panel, instead of just buying a portable

> like a 396/496 and calling that good. Those units are excellent options

> for some people, and they do a great job, but, there is LOTS more to

> consider when purchasing such a system.  Here is an example, and I think

> that although I'm using my system as an example, it would be the same

> for systems such as GRT EFIS, and some others:

>

> If you have it integrated, you're flying along, there's storm cells

> ahead scattered around.  You're VFR (or IFR) and you want to avoid any

> of them.  Your COURSE to the next waypoint is on-screen,and you can see

> that the pink line goes right into the area of the cell.  On the Chelton

> at least, your actual TRACK is also displayed on screen, and therefore

> you know your HEADING, your TRACK, and your COURSE...all on that same

> screen.  To avoid the storm, you put the EFIS, which is commanding your

> Autopilot into HEADING mode to avoid the cell, spin the proper heading

> in, and watch your TRACK change.  Nope, that didn't quite take you clear

> enough for comfort, so you turn your heading bug some more.  Now your

> track looks like it'll take you well clear.  The feedback in flight

> given by it's integration was very valuable. Your COURSE is still set

> right through the storm, and you'll adjust that later by re-initiating

> your position to that next waypoint, but that's done once you're around

> the side of the cell.  For now, you clearly can see that your current

> track avoids any danger.

>

> The weather on the portable is fantastic stuff, but, if you have the

> opportunity to integrate it into your EFIS, you won't have to estimate

> and interopolate where you are tracking towards, and where the weather

> is, and enter courses and waypoints and keep the handheld programmed

> with all deviations, and things like that.  You only have one system to

> manage and it's much tighter in integration and less work to keep on top

> of it...especially nice if you're flying IFR.

>

> ------------------------------------------------

> Tim Olson - RV-10 N104CD - Flying

> do not archive

> jjconstant wrote:

> > 

> > <jjconstant(at)comcast.net>

> >

> > Hi there. I'm an RV7A builder new to this forum but turned on to it

> > by the recent RV Hotline link. I have a dual GRT system (Horizontally

> > laid out) and I want Wx but have been going back and forth as to

> > whether its better to have it integrated into the GRT for $1500 and

> > installation now while everything is easily accessible, or to wait

> > and get some kind of portable (Garmin x96 or tabet) and have an easy

> > upgrade path with that. Thanks in advance for all opinions.

> >

> > Jeremy Constant

> >

> >

> >

> >

> > Read this topic online here:

> >

> > http://forums.matronics.com/viewtopic.php?p=115410#115410

> >

> >

>

apilot2(at)gmail.com
Guest

Posted: Tue May 29, 2007 12:37 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

Well, that is why I said mildly opposing...no big disagreement. Of

course I started flying when I could walk into FSS and see the maps

and get a brief. Getting Wx radar on a screen at FBO or FSS was a step

up. I was used to Alaska with no WX enroute, only at destinations,

where you had to go take a look. All this new fangled stuff in the

cockpit is enough to confuse a guy to not look out the window. 

Kelly

Do not archive



On 5/29/07, Tim Olson <Tim(at)myrv10.com> wrote:

 	  Quote: 	
		   



 Very very valid point Kelly, but you're still better off having

 it right on the screen that you're navigating by.  I also

 am a proponent of VFR flight in conditions where there is more

 than just one area of storms.  It's better to be below them,

 with some visibility, picking the way around the bad spots

 than trying to do it IFR and route around things you can't

 see.



 But, nobody would say that a 5 or 10 or 15 minute old weather

 picture isn't worth a hell of a lot more than picking it

 off the FBO's PC and then launching for a 4 hour flight.

scottmschmidt(at)yahoo.co
Guest

Posted: Tue May 29, 2007 1:06 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

Jeremy, I have thought for months about this as well and I am going with a tablet based system.  I wanted a system that I can check at a hotel room without taking my laptop and I wanted on-board digital maps, approach plates and weather.  I could integrate weather into the GRT or Chelton but I really get the same thing on the tablet plus more.  Many of the software programs allow you to insert your flight plan and it is very easy to see your plane in relation to the weather and make the necessary adjustments.  I could be dead wrong on this one too and wish I had it panel mounted. 

  

 To me the most important part about weather is getting the right data to decide whether you should go or stay on the ground.  With panel mounted systems you just don't get the data that you can get over the internet and flight service will always tell you to stay on the ground if there is one cloud in the sky.  I have found that flight service does a great job at giving you the big picture of weather and whether the system is building or dissipating.  Just recently I was warned of showers and building thunderstorms on a flight from Salt Lake to St. George (near Las Vegas) but my analysis on the internet showed all of that to east of my route. Only IFR flight was recommended.  The flight was absolutely perfect with a few puffy clouds.  I do cut them alot of slack though.  In the summer it is very difficult to predict the behavior of an air mass in the late afternoon around the mountains. I have about 4 sites  that I check before I ever take off on a flight and I always bring my laptop to do it.  With a tablet based system, I can leave the bulky laptop at home and just carry the slim and light Samsung Q1 with me, go grab a latte and Starbucks and check the weather. 

  

 One thing that the tablet, or 496/396 does is that it adds redundancy to your system.  I recently heard of a story of a 210 pilot who was flying above a storm and lost his engine.  He used the 396 to keep the wings level (apparently it was easier to fly the 396 instruments than the turn coordinator) and descended through the storm. He was picking up ice the whole way down and landed safely in a field.  Now the panel mount system may have done the same thing but what if we lost all the power to a panel mount version. 

  

 I really don't want to fly in the weather, it is no fun but it can be done safely in some instances.  And if you are building your RV-10 to see the country than you will have to fly into some clouds or you will be trapped on the ground alot when you could easily pop through a low ceiling to VFR-on-top. Honestly, some of the the most amazing flights started off in crappy weather but I knew there was nothing bad out there like ice or thunderstorms.  You fly through the clouds and pretty soon you are on top where the air is smooth, the sun is shining and view is amazing. But let me say, there have been more times I have stayed on the ground then to try to fly through something I didn't feel comfortable with. 

  

 We are all so spoiled to even be able to have a discussion about the different systems that send weather by satellite to your RV-10 so that you can fly safer and announce to your passengers up to date weather at your destination just like the big iron. It is kind of like arguing what temperature is best for your latte....145 deg F.....or 155 deg F. I actually like 155 to 160 F. (I was so happy to see Starbucks at Oshkosh these past couple of years)

  

Scott Schmidt

scottmschmidt(at)yahoo.com  



 ---

Bill Schlatterer

Joined: 09 Jan 2006
Posts: 195

Posted: Tue May 29, 2007 5:14 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

How about a third opinion   they're cheap even if the equipment isn't!

I also bought the dual GRT system with integrated GPS but opted for a 396

with weather for the following reasons:



 	  Quote: 	
		  > No comparison in screen resolution/clarity! (Chelton boys have a higher

resolution screen and it makes a difference)
	


 	  Quote: 	
		  > More useable information than just Nexrad.  The Garmin gives winds,

Metars, TAFS, forecasts, cloud cover, etc. everything.  The subscription for
	


XM Weather is the same cost-wise with either system but when I bought my

396, it would display a lot more info than the GRT. That may be different

now.  Both get the same data stream but the GRT could not take advantage of

all of the weather features then (check now)

 	  Quote: 	
		  > Love the complete redundancy.  That plus an ICOM 24a make a great

back-up/out plan for complete equipment failures
	


 	  Quote: 	
		  > Copilots love the 396 because it gives them something to do like, check

Metars, cloud decks, call for coffee, etc.  
	


 	  Quote: 	
		  > Pilots love having the copilot not reaching across to twiddle knobs.  (

If you had three displays, it would be better) 
	


 	  Quote: 	
		  > IF you fly different planes (I do) you can take it with you which is a

huge safety factor.
	


 	  Quote: 	
		  > If you fly with friends who don't have weather, they will ask you to go

on x-ctry trips a lot more often 
	




 	  Quote: 	
		  > I "think" but don't know that you can now buy used 396s for about $1500

since the 496 came out.
	


 	  Quote: 	
		  > I would opt for more money for the 496 because it is just better, faster,

and has true airport diagrams with taxi-ways which are real handy for
	


strange airports.

 	  Quote: 	
		  > Remember that the Garmin also has the approach segment from the FAF in so

you can sorta run an approach or just fly VFR with it.  Adding the GPS to
	


the GRT is a $500 option so really to get the same functions as the Garmin,

you have to put up $1,500 plus $500 which makes a used 396 a little cheaper

(I think).

 	  Quote: 	
		  > Dock is available for the 396 so you can panel mount it AND take it with

you if you like.
	




Fly both or at least get both in your hands before you make a decision!



Bill S

7a Ark



--

flysrv10(at)gmail.com
Guest

Posted: Tue May 29, 2007 5:36 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

Jeremy,  I have the XM weather option on my GRTs.  I just completed a  

flight from Florida to New Mexico and had to go through a line of  

storms in Texas.  I have actually never seen the weather information  

more than 5 min. old on my system.  Perhaps other systems that have  

been discussed here may delay the processing of the XM weather 15  

min. or so.



I threaded through storms in Texas that I would have normally waited  

out.  The depictions were incredibly accurate and allowed me to  

complete my flight without any stress.  I believe that 5 min. delay  

is pretty adequate considering the RV10's speed.



The GRT weather option will not show the satellite view, something  

that would greatly enhance the weather avoidance by knowing cloud  

tops and the extend of the cloud coverage.  The radar image is  

composite (I believe) and as such, you may see a line of storm in  

front of you but have a totally clear route below the echos.  So your  

only option in IFR conditions is to avoid all the radar returns not  

knowing that you might be able to climb or descend  to stay out of  

them.  To me, that is not so bad because ultimately, you will avoid  

the weather by avoiding the color on the display.



I see a lot of value in having the weather overlaid on your GRT.  On  

this trip, I just set the heading bug through the clear area on the  

display and basically monitored the GRTs and did not have to look at  

some other display to transpose the information mentally.  I hope I  

am making sense.



However, I highly recommend getting any kind of weather option for  

your plane.



Do not archive

On May 29, 2007, at 2:23 PM, jjconstant wrote:



 	  Quote: 	
		   



 Hi there. I'm an RV7A builder new to this forum but turned on to it  

 by the recent RV Hotline link. I have a dual GRT system  

 (Horizontally laid out) and I want Wx but have been going back and  

 forth as to whether its better to have it integrated into the GRT  

 for $1500 and installation now while everything is easily  

 accessible, or to wait and get some kind of portable (Garmin x96 or  

 tabet) and have an easy upgrade path with that. Thanks in advance  

 for all opinions.



 Jeremy Constant





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=115410#115410

Bill Schlatterer

Joined: 09 Jan 2006
Posts: 195

Posted: Tue May 29, 2007 7:55 pm Post subject: The Perfect Panel...how to decide - was GNS-430W

Kelly, just an interesting factoid  which everyone but me may have

already known about weather report timing.   Center uses Nexrad with the

time delay of 1-6 minutes if there is any weather popping and 11 minutes if

fair weather.  So for most of a trip you have the delay anyway because that

is what the ARTCC system uses. If you're getting vectors from Center, then

you are using the delayed NEXRAD and might want to know that.  I had always

assumed it was more real time.  Approach (ASR) uses real time stuff with

virtually no time delay and is much more accurate. 



Just interesting to know.  Off the last AOPA Thunderstorm Training CD



Bill S

7a Ark



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