Quote:
Originally Posted by rmartingt
Thank you for posting these numbers. I've strongly suspected that the reliability requirements for compliant ADS-B Out were extremely high; this gives us numbers. Nice to know that the FAA considers reporting 3D position to within feet to be the single most important part of the aircraft (because I guarantee the engine, airframe/structure, and everything else on the airplane will fail long before 10,000,000 hours).
Out of curiosity (and perhaps to echo another poster), how much time/effort/money would saved by not having to do the full TSO paperwork, including all the FAA-required bureaucratic bookkeeping that doesn't affect the end product, and just meeting the technical performance part of the requirement?
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For the answer to the last question, check out the Navworx-EXP, which does not carry a TSO. (note: as far as I know there are no units yet installed and verified to be operating correctly). I should point out that, depending on what other equipment you own or want to own (like a Garmin 430W) there are some routes with lower costs, although one might argue apples vs oranges here.
As to the stringent position reporting, that's because the FAA hopes to use ADSB for automated collision avoidance ON THE GROUND. They want a warning if two giant airbusses on adjacent taxiways are about to clip wings. Of course RV's wings don't hang outside of taxiways like that, but these rules were written for the airlines.
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