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11-22-2015, 06:54 AM
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Join Date: Jun 2014
Location: Sully, IA
Posts: 40
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Can you expand on how the flap controller portion works, does it need a position sensor to be able to set different flap settings? In the manual it shows to micro switches but that's it. Also the lighting controller dimmer portion does it need input power or does it take that from somewhere else.
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11-22-2015, 07:31 AM
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Join Date: Aug 2012
Location: Chatham Ont.
Posts: 41
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Flaps
G3expert
Do the flaps extend and retract automatically based on airspeed?
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11-22-2015, 07:35 AM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by Tnikkel5
Can you expand on how the flap controller portion works, does it need a position sensor to be able to set different flap settings? In the manual it shows to micro switches but that's it. Also the lighting controller dimmer portion does it need input power or does it take that from somewhere else.
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Hello,
Yes, a flap position sensor connected to the GEA 24 is required so the GAD 27 can monitor/control the flap motor position.
The flap motor limit switches are optional. If installed, the GAD 27 will use this switch input information in addition to the flap position data to determine the extreme ends of flap motor movement.
The GAD 27 actually receives flap position information from the G3X system from a flap position sensor connected to the GEA 24. Most people already have this to provide a flap position indication on the PFD. Just hook up your flap motor and flap switch to the GAD 27, and it goes to work.
Any flap positions that are defined for your flap position indication on the PFD are automatically used by the GAD 27 as flap control (stop) positions.
The GAD 27 has six lighting bus connections. 3 are for DC reference level lighting control like used by the G3X displays and most other devices in a G3X system like the GTN. 3 are PWM controlled variable power sinks that can be used to control things like cockpit lights. Just hook aircraft power to one side of the light, and connect the ground side to one of these three PWM inputs. Each of the 3 PWM power sinks can support up to 0.5A.
The GAD 27 lighting bus configuration allows you to map any lighting bus control knob (pot) to any or all lighting buses. For example, a single pot can control devices connected to all six lighting buses, or you can use up to 3 separate pots mapped to any combination of the six lighting buses. In our RV-7A we have 3 control pots. The left knob controls the display backlighting, the middle knob controls the radio stack (and GTN) backlighting, and the right knob controls the cockpit lighting including the strip light under the glare shield.
Let us know if you have additional questions.
Thanks,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
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11-22-2015, 07:40 AM
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Join Date: Jan 2005
Location: KPYM
Posts: 2,686
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Quote:
Originally Posted by Greenley
I have been planning a G3X setup with a vertical power pro. It seems like this does some of what the VP Pro does, flaps, Wig-Wag, etc. Outside of electronic breakers, with this as part of a system, does the VP Pro still make sense?
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Bill, As a VPX Pro/G3X user, I feel like I might be able to help you.
I REALLY like the way the VPX reports current flow for all my connected loads. It is very useful in determining faults and observing the "health" of my electrical components.
When the GAD 25 (made that part up) comes out and includes this functionality, it could effectively replace the VPX Pro.
Until then, You need to weigh the desire between monitoring loads on your circuits against Garmin product line integration.
Me??? I have no remorse, but could see your conundrum.
It certainly muddies your decision!
OTOH, you could install both (utilizing the VPX for only the ECB funtionality) and have the best of both worlds!
Hope this helps.
 CJ
__________________
RV-7 Flying - 1,200 Hours in 5 Years!
The experiment works!
TMX-IO-360, G3i ignition & G3X with VP-X
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11-22-2015, 07:54 AM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by Mike Buckler
G3expert
Do the flaps extend and retract automatically based on airspeed?
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Hi Mike,
No, the GAD 27 will never extend or retract the flaps without being requested to do so by the pilot.
As great as automation is as a workload reducer, we take flap control very seriously and believe that the pilot must be in charge anytime the flaps are moved.
Thanks,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
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11-23-2015, 06:44 PM
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Join Date: Jan 2005
Location: McCordsville IN
Posts: 277
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Not compatible with original G3X?
Hello G3Xpert!
Would there be any way via software upgrade in the future to use this product with the original G3X? This would be fantastic if possible. And I will take 2ea if you can!
__________________
Jon Hubbell
RV-6 Flying IO-320X tip up 500+hrs G3X 2004 Oshkosh Outstanding workmanship award, 2004 Sun N Fun Best Workmanship 2006 Sun N Fun Outstanding Aircraft
RV-10 Flying IO-540-C4B5X 500+hrs G3X 2011 Bronze Lindy Award Winner
"Negative Ghostrider the pattern is full"
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11-24-2015, 05:23 AM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by n700jl
Hello G3Xpert!
Would there be any way via software upgrade in the future to use this product with the original G3X? This would be fantastic if possible. And I will take 2ea if you can!
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Hi Jon,
Negative, Ghostrider, the pattern is full.
Just kidding. It is technically possible and we haven't ruled that out.
Thanks for your interest,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
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12-04-2015, 07:06 AM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Taxi/Landing Light Control with a GAD 27
We have had several customers ask whether they need to install a third light switch for use with their GAD 27 to control the alternating flashing (wig-wag) function of their taxi and landing lights, so we thought we would post the answer here as well.
The answer depends on whether or not you want to manually control the flashing (wig-wag) function, or are ok with that always being automatically controlled.
For example, on our RV-7A we have only installed two light switches for taxi and landing lights. Additionally, we have configured our system in this manner:
When we are on the ground, or in the air, the 2 lights follow the 2 switches unless the Automatic Flashing function has taken over operation of these two lights above the specified airspeed.
So, when operating day or night we use the taxi and landing light switches on the ground to do what we want, then as soon as the aircraft takes off and passes through 85 kts, the Automatic Flashing feature (which we have enabled) takes over and starts flashing the lights regardless of the position of the two light switches.
When we come in to land, the flashing lights stop flashing on final when the aircraft slows below 85 kts and then the lights follow the position of the two switches. As such, for night operations you would probably have both lights on before takeoff, leave them ?on? the whole flight so when they stop flashing on final, they go on solid for landing.
In other words, you will want to install 3 switches if you prefer to manually control the wig-wag function, or 2 switches if you are good with the wig-wag always being under automatic control based on the airspeed you specified in the configuration.
Another question we have received several times is whether or not the two light switches have to be on for the wig-wag function to work. The answer is no. The automatic or manual triggering of the wig-wag function may take priority over the position of the light switches, and as soon as wig-wag is turned off (manually or automatically), the switches take over controlling the lights.
The Light Priority selection can be set to Switch or Flash. When set to Switch, if an external light's switch is on, the light will be steady on, regardless of any other settings on the External Lights page. An example of when you would want to use this is when in the clouds at night (to stop the flashing). When set to Flash, if other settings on the External Light page determine that an external light should flash, it will flash, regardless of the state of the associated light switch.
Another question we sometimes receive has to do with overlap between the on time of the lights. There is a small overlap between a light that is turning off and a light that is turning on.
Thanks,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
Last edited by g3xpert : 03-28-2017 at 10:58 AM.
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12-04-2015, 06:49 PM
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Join Date: Apr 2013
Location: Southeast
Posts: 663
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With the trim mixing, are there independent connections on the GAD 27 for both the pilot and co pilot trim switch. Do all the wires for the trim servo i.e. Ray Allen T2 or T3, connect directly to the Garmin auto pilot servos. If you have landing lights that have a built in wig wag system, i.e. AeroLed, is there any benifit with GAD27.
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12-04-2015, 08:25 PM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Hello togaflyer,
Quote:
Originally Posted by togaflyer
With the trim mixing, are there independent connections on the GAD 27 for both the pilot and co pilot trim switch.
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Yes, as shown on page 24-9 of the Rev. V G3X Installation Manual, the pitch and roll trim inputs for the pilot and copilot trim switches have dedicated pins so you don't have to splice these together as required with some devices on the market. Installing and using the copilot switches is optional.
Quote:
Originally Posted by togaflyer
Do all the wires for the trim servo i.e. Ray Allen T2 or T3, connect directly to the Garmin auto pilot servos.
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The two trim motor wires connect to the GSA 28 servo which has built-in auto-trim capability (page 24-6) and the three wires for the trim position sensor connect to the GEA 24 (page 27-6).
Quote:
Originally Posted by togaflyer
If you have landing lights that have a built in wig wag system, i.e. AeroLed, is there any benefit with GAD27.
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Yes, one of the advantages of the GAD 27 is that switches which normally directly switch high power devices like lights, now only have to ground very low power logic discretes. The choices available for the light switches you install are much larger since low power signal switches can be used to switch high power lights when using the GAD 27 for leverage.
Thanks,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
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