> Larry: > > I was replying to Dan H's post re: magnetometers as alternate, and > should have made that clear. The comment "(dry)" was with respect to > the "whiskey" qualifier in the subject line, and "wet" referred to the > dampening agent used in the typical "whiskey" compass. > > What I said was what I was taught many decades ago, not an inference. > If you know otherwise, so be it. I have no intention to get into a > pi--ing contest with anyone over this or anything else. I am not the FAA. > > And yes, I know there are other types of compasses which do not use > liquid dampeners... but that was not Dan's point, as I understand it. > He could very well be correct - or not. Who knows what the FAA will > approve tomorrow? > > George
I think you'll find this is something that is subject to interpretation by the DAR/Inspector that issues (or not) the airworthiness. I've seen it go both ways on this. Some DARs are fine with you using the magnetometer connected to your EFIS. Others will require a non-powered compass as George says. Both are right. But in either case, I think you'll find that your direction indicating device must be part of the fixed INSTALLED equipment in the aircraft, and not a hand held device. You can be right with your interpretation, but arguing with the DAR isn't likely to get you an Airworthiness Certificate. You can ask the group here and get more answers than you can comprehend. Nothing wrong with giving the DAR you plan to use a call and asking his opinion. If you don't like it, then call the next guy on the list until you get the answer you want, then schedule him to inspect your aircraft. Or you can send an email to your local FSDO asking for an interpretation, then present a copy of the Email to the DAR if he disagrees. -Jeff Scott Los Alamos, NM
