Garmin G5 to GTN-650 integration for DALT/TAS/Winds

Discussion in 'Avionics and Upgrades' started by Baron62, Dec 27, 2017.

  1. Baron62

    Baron62 Pre-takeoff checklist

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    If I add OAT to a G5 to GTN-650 integration will I be able to get calculated DALT, TAS and Winds on a GTN-650? It would be nice to nice to know the wind direction and speed at a glance.

    The GTN -650 pilot's manual states, "Density Alt / TAS / Winds — indicates the theoretical altitude at which your aircraft performs depending upon several variables, including indicated altitude (Indicated ALT), barometric pressure (BARO) and total air temperature (TAT; the temperature, including the heating effect of speed, read on a standard outside temperature gauge). This item computes true airspeed (TAS) and density altitude, based upon the factors above. Also, this feature determines winds aloft — the wind direction and speed — and a head wind/tail wind component, based on true airspeed, aircraft heading (HDG) and ground speed."
     
  2. Clark1961

    Clark1961 Touchdown! Greaser!

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    A GNS-4/5x0 calculates air data with input from an Aspen. Hard to imagine the GTNs deleted the capability. Dunno if the G5 exports data in a format that a GNS can read.
     
  3. teejayevans

    teejayevans Pattern Altitude

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    Not quite because for some reason big G won’t accept the IAS from the G5 as CAS, last I saw, they were going to have to investigate.
     
  4. Baron62

    Baron62 Pre-takeoff checklist

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    I just asked the avionics shop to check on IAS as CAS. They have to research.
     
  5. NordicDave

    NordicDave Line Up and Wait

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    Av Shop installed an OAT sensor connected to my GTX-345 ADS-B transponder. This transponder calculates density altitude while displaying OAT. Pretty handy out here in the mountains.

    Nice to have DAlt readily calculated, how ever you accomplish it.
     
  6. BGF_Yankee

    BGF_Yankee Line Up and Wait

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    Is there a certain sensor for that, or just one already connected to your aircraft? I already have a digital OAT connected to my CGR-30P. Wondering how that is all wired up to your GTX345.
     
  7. bnt83

    bnt83 Final Approach

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    OAT probe wired to connector P3251 http://joesrv12.com/Garmin/GTX 345 TSO 190-01499-02_4.pdf
     
  8. BGF_Yankee

    BGF_Yankee Line Up and Wait

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  9. Pat Elliott

    Pat Elliott Pre-Flight

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  10. AggieMike88

    AggieMike88 Touchdown! Greaser!

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    Now offering reverse discounts.
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    (I must be channelling Mark and Eman)
     
  11. Baron62

    Baron62 Pre-takeoff checklist

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    My avionics shop got back to me and stated that I will not get automatically calculated wind speed and direction on the GTN-650 if I add an OAT probe. They said that an Air Data Computer is needed. May be due to CAS vs IAS as stated by TeeJayEvans above. I can add OAT to the gtx-345 as stated above but this will only give me density altitude. I may add OAT to the 345 depending on cost.