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I think the formats for PFDs and the like are much more standardized industry-wide, even if they aren't codified in the regs. Tweaking of PFD layout isn't going to be done lightly.

Remember that there's also potential market to consider. As everyone notes, the cost of developing a full IFR navigator involves not just developing an approved GPS receiver with appropriate fault warning, but also a full database structure, display of all that data, and showing that there...

Setting based on current... there's an idea! I like that. My thinking with dual batteries and alternators is somewhat along your reasoning--it's extra insurance. It also gives me margin in case I lose the primary alternator and I'm in a situation where I need extra juice beyond what the aux...

Hmm, didn't think about that approach.  I'd have to get the details but I wonder if the "low voltage" light on a B&C regulator would work... Yep, already planning on the master warning light.  Planning on a dual-alternator, dual-battery setup.  I want the audio warning and not just a warning...

Is there any possibility of getting aural alerts for selected EMS widgets that enter the yellow range? I'm asking because I'm planning an electrically-dependent engine, and I want to configure some kind of aural warning that I've lost an alternator. I'd planned to set the green range for...

Keying it off airspeed defeats half the purpose of AOA and means it might not be there in maneuvering flight or other accelerated stall situations. I'd rather see a remote display and some way to make the widget behave differently--to me it makes more intuitive sense to have it start out...

For comparison, hardcore experimental/certification flight test systems use higher data rates, but the stuff we use for incident investigation and troubleshooting on large aircraft doesn't generally record over 10/sec. Some of the newest flight data recorders may be up to 16/sec but most are...

Applying the "double it and add ten" rule I use for cost estimates... puts you at $16-20 million. That sounds more reasonable, knowing how such things go. Unless they know of another proviso in the regs that everyone else has missed?

The cost to develop such a unit, and maintain the databases, is high.  GRT was working on it a few years ago but I think the project stalled out as they realized how much was involved.  Remember too that the market for IFR GPS in the certified world is a lot bigger than the experimental...

The FAA had concerns about the bandwidth of 1090 given the enormous GA population compared to other places. So they created another method that was intended for "little" airplanes. Of course, in the FAA's infinite wisdom, they completely misunderstood what the owners and pilots of those...

I eagerly await the day when this is available for cars, because of what it will mean for people who can't drive due to a medical condition or disability. Please don't put it in my airplane.

The problem with a GPS-based AGL readout is that inevitably, someone is going to try and rely on it for ground clearance and wind up experiencing a rapid lithobraking event or a collision with a man-made obstruction. There's a reason large aircraft use radar/radio altimeters and not a...

Disclaimer: I'm an aerospace engineer but I don't work for Dynon (or anyone else in the homebuilt industry) I think people are asking for two different things. One is for the vertical component of an approach (glideslope) to be incorporated in the HITS boxes, like the current "to the runway"...

UAT gives us the weather info and such, but as far as Out goes, I think the majority is using 1090 based on actual users so far. The FAA does this kind of thing regularly--they say "here's what we think everyone's going to do, so let's write the rules for that"--and then in the real world...

I guess the other alternative would be the ability to put an "event marker" in the data file, triggered off a button press. Does the log give you the ability to record open-closed sensor states? E.g. some builders have a "canopy unlocked" or "wing pins" widget on the EMS page; could you wire...

It just seems silly that a receiver wouldn't be capable of picking up both bands. It seems even sillier to make a system that broadcasts on one band and receives the other, and relies on a ground station to pick up signals from its "own kind". Really, the whole implementation of ADS-B is...

AOA is independent of bank angle (or airspeed, or pitch angle, or gross weight, or phase of the moon). An airplane stalls when it exceeds the critical angle of attack. Period. If you stall at a given AOA in level flight, you will stall at that AOA in a turn or pull up. Since the Dynon...

Here's the thread. One early poster used a ball inflator needle, but post 106 has pictures of a rivet. http://www.vansairforce.com/community/showthread.php?t=34040&page=6

What kind of aircraft do you have? You may be able to add AOA functionality without having to install a new pitot probe. I know some RV-12 guys have added AOA sensing by using a hollow blind rivet on the underside of the wing and connecting that to the AOA port. If your airframe would...

Don't know if anyone else has noticed (and it may just be the super-paranoid work firewall), but I'm getting virus warnings on almost every thread. I'm not seeing it on other computers. Not sure if it's a false positive or just something hidden really well...