Thomas - How many Dynon EFIS systems did you plan to install? One? If so, what was your plan in case the Dynon EFIS itself died?
What ever plan you have to deal with a total EFIS failure, that same backup plan should cover you for unreliable attitude due to pitot blockage.
If you want specific protection against iced up pitot tube, then maybe you should use a heated pitot tube.
Hi Kevin,
I have one D10A of them installed and plan to add the EMS10 as well. I do agree with you, there needs to be redundancy in the cockpit and having panelspace and money there is basically no limit
Anyhow, In my opinion the six basic flight instruments are giving redundancy to istelfs as well, so the ADI can replace a good part of all the other five, as attitude is the most important thing in flying an airplane. Looking at the way Dynon's engineers obvioulsy did set up the EFIS, it looks as either all or nothing is functional. This aspect doesn't look to great for me, as I am used - regardless if EFIS or conventional electro mechanic - parts can fail, but the rest remains 100% reliable. Here we face a simple fact if it's true that the attitude can't be controled without the speed: An iced up pitot tube can lead into a fatal situation. This aspect I don't like at all and I think Dynon would do good to bring us a software that still controls attitude safely if the speed has gone. There are to many nasty lawyers out there, just looking for the first incident caused by this.
If only pitch gets inacurate by loosing the speed, Dynon could give us an easy emergency guidance, as for example: No speed, relay on bank and VSI only. They even can add a popup on the ADI telling this. This would do it already, but I guess the Dynon Tech Reps will pop in soon and explain us what exactly happens and what to do. Finally the safets way to fly an aircraft is to completely understand it's systems and for this I really love this forum.
My plan in fact is to add the Trutrak 2 1/4 ADI once it's available. Then I have a conventional turn and bank and VSI as well. The good part I love about the D10A is the backup battery. I have one in my GNC250XL as well. This combination makes me pretty redundant in case of complete electrical failure.
Kind regards
Thomas