VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Avionics / Interiors / Fiberglass > GPS
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #111  
Old 04-06-2019, 03:23 PM
BobTurner BobTurner is offline
 
Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
Default

I apologize for the mis-information. My memory must be failing. I thought in 2010 when I bought my G420W Stein said I had to buy their harness. But that was 9 years ago.
Reply With Quote
  #112  
Old 04-06-2019, 10:31 PM
LeonardWestermeyer LeonardWestermeyer is offline
 
Join Date: Dec 2016
Location: Spokane, Washington
Posts: 23
Default Vertical Guidance in GNX 375 (GPS 175)

Thanks to everyone for answering my question about self installation.

I am playing with the trainer app to try to understand the unit, and I don’t see where it shows vertical guidance for an LPV Approach. This was mentioned as a feature, but where is it displayed?

Is this shown on a coupled G3X or on a coupled G5 display or do you need a separate CDI instrument?

Thanks for the explanation!

Leonard Westermeyer
RV-7A in construction.
Reply With Quote
  #113  
Old 04-07-2019, 01:08 AM
rvmills's Avatar
rvmills rvmills is offline
 
Join Date: Nov 2007
Location: Reno, NV
Posts: 2,125
Default

Quote:
Originally Posted by LeonardWestermeyer View Post
Thanks to everyone for answering my question about self installation.

I am playing with the trainer app to try to understand the unit, and I don?t see where it shows vertical guidance for an LPV Approach. This was mentioned as a feature, but where is it displayed?

Is this shown on a coupled G3X or on a coupled G5 display or do you need a separate CDI instrument?

Thanks for the explanation!

Leonard Westermeyer
RV-7A in construction.
Leonard,

I haven't been able to get the sim to couple in a pitch mode either. Have tried LPV and Visual approach modes. There is a sim tracking mode that includes vertical, but I can't get that to work yet (I'm betting there is an operator error component to this result) ;-)

From the map, hit the home button or the back button to get to the home page. From the home page, hit the demo button (upper left of the 375's screen), and on page 1 of the demo settings, upper R corner, there is a track mode button. One option is Flight Plan plus Vertical. Seems to track the LNAV track, but so far it won't capture the vertical guidance. Have tried going to the FAF at the FAF altitude, and other altitudes, but still no joy. The resources button (upper right corner of the screen) has a sim users guide, but it's fairly short, and doesn't cover this aspect, AFAICT. If you figure it out, let us know.

Real world, the AP NAV mode should track the course, and the VNAV mode should follow the vertical guidance once captured, but AP controls are not in the iPad sim app.

Question for the xperts on the flight plan waypoints: on an RNAV (GPS) approach to LPV mins (aka an "LPV approach"), will the flight plan or the waypoint info boxes show the approach crossing altitude for various waypoints? I know we reference the approach plate for those, but having it on the display is nice too, as a reference.

Thanks for any info on that, or on coupling the sim in pitch!

Cheers,
Bob
__________________
Bob Mills
RV-6 "Rocket Six" N49VM
Reno-Stead, NV (KRTS)
President/Sport 47/49, Sport Class Air Racing
President, Formation Flying Inc (FFI)
Flight Lead, Lightning Formation Airshows
Reply With Quote
  #114  
Old 04-12-2019, 12:58 AM
LeonardWestermeyer LeonardWestermeyer is offline
 
Join Date: Dec 2016
Location: Spokane, Washington
Posts: 23
Post GNX 375 Vertical Guidance

In case anyone is interested in the answer to the question I posed above about where vertical guidance from the GNX 375 is displayed, here is the reply I received from Garmin:

Leonard,

If you are using a G3X or G5, the vertical deviation will be shown next to the Altitude tape:

Picture attached.

Let us know if you have any other questions.


Best regards,

Justin Cobb
Aviation Field Service Engineer

1200 E. 151st Street | Olathe, KS 66062, USA | Phone: +1.866.854.8433 | Email: G3Xpert@Garmin.com



This clarifies that the vertical guidance is produced by the GPS unit, but not displayed on it. It is sent to the G5 or G3X or to a CDI for display. I?m presuming it?s also made available to the autopilot for coupled approaches.

Hopefully this will help, although I?m probably the last person to figure this out!

Leonard Westermeyer
RV-7A in construction
Reply With Quote
  #115  
Old 04-12-2019, 05:58 AM
Brantel's Avatar
Brantel Brantel is offline
 
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
Default

Quote:
Originally Posted by LeonardWestermeyer View Post
In case anyone is interested in the answer to the question I posed above about where vertical guidance from the GNX 375 is displayed, here is the reply I received from Garmin:

Leonard,

If you are using a G3X or G5, the vertical deviation will be shown next to the Altitude tape:

Picture attached.

Let us know if you have any other questions.


Best regards,

Justin Cobb
Aviation Field Service Engineer

1200 E. 151st Street | Olathe, KS 66062, USA | Phone: +1.866.854.8433 | Email: G3Xpert@Garmin.com



This clarifies that the vertical guidance is produced by the GPS unit, but not displayed on it. It is sent to the G5 or G3X or to a CDI for display. I?m presuming it?s also made available to the autopilot for coupled approaches.

Hopefully this will help, although I?m probably the last person to figure this out!

Leonard Westermeyer
RV-7A in construction
Just to add, this is how the GTN and older GNS systems work as well. Vertical guidance requires an external display of some sort.
__________________
Brantel (Brian Chesteen),
Check out my RV-10 builder's BLOG
RV-10, #41942, N?????, Project Sold
---------------------------------------------------------------------
RV-7/TU, #72823, N159SB
Lyc. O-360 carbed, HARTZELL BA CS Prop, Dual P-MAGs, Dual Garmin G3X Touch
Track N159SB (KK4LIF)
Like EAA Chapter 1494 on Facebook
Reply With Quote
  #116  
Old 04-12-2019, 09:22 AM
rvmills's Avatar
rvmills rvmills is offline
 
Join Date: Nov 2007
Location: Reno, NV
Posts: 2,125
Default

Quote:
Originally Posted by LeonardWestermeyer View Post
In case anyone is interested in the answer to the question I posed above about where vertical guidance from the GNX 375 is displayed, here is the reply I received from Garmin:

Leonard,

If you are using a G3X or G5, the vertical deviation will be shown next to the Altitude tape:

Picture attached.

Let us know if you have any other questions.


Best regards,

Justin Cobb
Aviation Field Service Engineer

1200 E. 151st Street | Olathe, KS 66062, USA | Phone: +1.866.854.8433 | Email: G3Xpert@Garmin.com

This clarifies that the vertical guidance is produced by the GPS unit, but not displayed on it. It is sent to the G5 or G3X or to a CDI for display. I’m presuming it’s also made available to the autopilot for coupled approaches.

Hopefully this will help, although I’m probably the last person to figure this out!

Leonard Westermeyer
RV-7A in construction
Quote:
Originally Posted by Brantel View Post
Just to add, this is how the GTN and older GNS systems work as well. Vertical guidance requires an external display of some sort.
This all makes good sense, and should be the case for any interoperable EFIS/PFD connected to a 175/375 (Garmin, Dynon, Advanced, etc).

I was also asking if there is a way to have the simulator app for the 175/375 follow vertical guidance when on an approach. There is a selection for automatic lateral track following, and one that says "plus vertical guidance", but I haven't been able to have it couple and follow the vertical guidance to mins. It flies the lateral track to the MAP at the FAF altitude (which is where I set the altitude on the app), and then asks if I want to suspend or continue. I reckon I could just change the altitude to minimums and watch it fly down to the mins, but the VSI can't be controlled, so I'm not sure how it would work. Really just trying to see how the annunciations change during an RNAV (GPS) approach flown to LPV mins, while coupled to the vertical guidance. Might be something that needs to wait until its installed and paired with an EFIS and AP. Still a cool app tho!

I have a unit on order, and before I do my phase 1 upgrade, I will try to ground test it with a legacy Dynon system...and a Skyview system, and perhaps an AFS system...if buds at the home drome will let me experiment...to see if the serial output will provide nav and steering commands to the legacy system, and how the 429 interfaces are with the other two systems. Then I'll know if my two-phase upgrade plan will work. Fingers crossed!

Cheers,
Bob
__________________
Bob Mills
RV-6 "Rocket Six" N49VM
Reno-Stead, NV (KRTS)
President/Sport 47/49, Sport Class Air Racing
President, Formation Flying Inc (FFI)
Flight Lead, Lightning Formation Airshows
Reply With Quote
  #117  
Old 04-13-2019, 11:46 AM
Flyhud's Avatar
Flyhud Flyhud is offline
 
Join Date: Jul 2018
Location: Burleson, TX
Posts: 76
Default Panel cutout dimensions

I have GPS-175 on order and am just about ready to start cutting my new panel, does anyone have the official panel cutout drawings/dimensions? It doesn?t look like the installation manual is available yet from GARMIN.
Reply With Quote
  #118  
Old 04-13-2019, 11:53 AM
Brantel's Avatar
Brantel Brantel is offline
 
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
Default

Quote:
Originally Posted by Flyhud View Post
I have GPS-175 on order and am just about ready to start cutting my new panel, does anyone have the official panel cutout drawings/dimensions? It doesn?t look like the installation manual is available yet from GARMIN.
Get the install manual from your dealer. They have em...
__________________
Brantel (Brian Chesteen),
Check out my RV-10 builder's BLOG
RV-10, #41942, N?????, Project Sold
---------------------------------------------------------------------
RV-7/TU, #72823, N159SB
Lyc. O-360 carbed, HARTZELL BA CS Prop, Dual P-MAGs, Dual Garmin G3X Touch
Track N159SB (KK4LIF)
Like EAA Chapter 1494 on Facebook
Reply With Quote
  #119  
Old 04-13-2019, 12:33 PM
NewbRVator NewbRVator is offline
 
Join Date: Jul 2018
Location: CA
Posts: 227
Default

Looking for a West Coast/Norcal Garmin shop to panel upgrade an RV6A with a new GNX375 and G5.

No call backs or e-mail returns from the few contacted thus far.(to remain unnamed outfits)

Thanks
__________________
20 dues paid member since 2018
RV6A
Reply With Quote
  #120  
Old 04-17-2019, 11:58 PM
Draker's Avatar
Draker Draker is offline
 
Join Date: Jun 2016
Location: Livermore, CA
Posts: 397
Default

Let's say you're sticking with Garmin equipment, building a new IFR-ready panel. You want to tick the following checkboxes: TSO'd WAAS GPS, nav radio for VOR/LOC, ADS-B in/out, what's the difference between the following combinations of equipment:

Option A:
GTN 650 GPS navigator with NAV/COM
GTX 345R Transponder/ADS-B In/Out
$11995 + $4995 = $16990

Option B:
GTN 650 GPS navigator with NAV/COM
GTX 45R Transponder/ADS-B In/Out
$11995 + $3895 = $15890

Option C:
GNX 375 GPS navigator with Transponder/ADS-B In/Out
GNC 255 NAV/COM radio
$7995 + $4495 = $12490

..besides slightly more panel space needed for option C?
__________________
Ryan Drake
Livermore, CA
https://stiletto.smugmug.com/RV7
Donated 12/16/2019
RV-7A (N12VD): Empennage and wing kits complete minus fiberglass, fuselage and wiring complete. Canopy complete minus fiberglass. Waiting for the engine to come!
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 09:09 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.