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Several years ago, I worked with Garmin and Dynon to align their serial ADAHRS and EIS data streams, with a protocol that I called FIX. They both adopted it and it was released in the original G3X and SkyView systems.
Since then, they have been diverging, but it sure would be nice if someone would encourage them (and others) to cooperate as much as possible. Turns out, that I ended up retiring from commercial avionics development, so I have no skin in the game anymore, but I developed a bunch of stuff that used these serial streams. V |
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Skyview extends the data with DA, wind direction, wind speed. G3x: Code:
=1115032801+112-00071230050+00984+026-02+1099-001+01274A8Code:
!1116533112-013+00750451000+02866+018-02+1020-060+261074254+048531481087Code:
16014827+042-00331080347+0230-026-03+1020FE32F901BB |
Been working on another screen option for the HUD project. This one mostly modeled after the F18 HUD. It?s not complete yet but is taking shape.
https://photos.app.goo.gl/WToWLpVgrRhS2FaM8 |
Latest update to the F18 inspired HUD screen include the roll angle and slip/skid indicator at the bottom as well as a flight path marker.
The code for all the "widgets" is coming together. Creating customized screens is getting easier and easier. ![]() |
Don't Change Anything
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I have about 1800 hours looking through a similar looking HUD. It was really good for some things, but those are probably not applicable to a light aircraft. For instrument flying, having airspeed and altitude scales, and trend arrows, is much better for use as a flying instrument.
Basically the same as on a standard PFD display. Boxes with digits don't show trends, or deviations, unless you stare at them. Trend arrows and motion of the scales allow you to see the same thing with peripheral vision. Much mo betta. |
No experience at all (yet) flying behind glass, but what svyolo says rings true to me. About 40 years ago, I bought one of the first full-auto SLR cameras, a Canon A-1. Instead of match needles for setting F-stop and exposure, it had a 'digital' display in the viewfinder. A minor nightmare to actually use; you had to stop and read the settings instead of just having a peripheral awareness that the needles matched, as you can do with a match-needle camera. I do worry about transitioning to 'glass' for that reason.
Charlie |
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Other widgets I have developed for other screen layouts do show trends like the turn rate indicator, VS trend, etc. The flight path indicator is also a very handy tool. I also have versions of the ASI and ALT display that work as tapes as well. Bottom line is the flexibility is there to customize the display with tons of options to suit the pilot. These displays can be toggled for different flight modes in flight as well if the pilot wants one style for cruise and another for approaches and another for ???? You get the idea. |
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I wondered about that myself but I found it to be a very simple transition. But you could always rent a glass plane and go up with a flight instructor to see how well you handle it. |
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