radio speaker

chris.johnson · Post by **chris.johnson** » Sat Mar 01, 2014 9:40 am

would a 3 inch speaker in the instrument panel affect the compass?

aero101 · Post by **aero101** » Sat Mar 01, 2014 10:30 am

Probably as that's a lot of magnetic field. You may be able to compensate it out, but I'd try location first before mounting permanently. Very common up here to see magnetized airframes, can degauze but usually comes back within a few days. Sure can be a pain, and cure is a remote flux valve out in wingtip with remoted compass which would always be another option?

Mountain Doctor · Post by **Mountain Doctor** » Sat Mar 01, 2014 11:50 am

I bet it would.

Try placing your headset on the panel and watch your compass. It moves quite a bit.

With that said, I usually set my heading indicator based on the GPS track, although it's possible to imagine an unlikely scenario where the compass would be your only navigation tool.

chris.johnson · Post by **chris.johnson** » Sat Mar 01, 2014 1:59 pm

You shouldn't need a compass in Fairbanks, you should be able to see the pole sticking up from there.

crbnunit · Post by **crbnunit** » Sat Mar 01, 2014 11:20 pm

I believe we have been slighted... By a Texan no less! LOL!

chris.johnson · Post by **chris.johnson** » Sun Mar 02, 2014 4:10 pm

I was there in 1977, if you ordered texas size in the cafe you got a child's plate.

gbarrier · Post by **gbarrier** » Sun Mar 02, 2014 4:19 pm

Do we really need a speaker these days? We always have two sets of headphones hanging in the cockpit. I remember being able to operate Part 135 as long as we had "two listening devices". Am planning on removing ours when we do the skylight mod.

st8cop166 · Post by **st8cop166** » Sun Mar 02, 2014 6:15 pm

crbunit . . .That ain't right. That just ain't right.

Andy Young · Post by **Andy Young** » Sun Mar 02, 2014 7:07 pm

gbarrier wrote:Do we really need a speaker these days? We always have two sets of headphones hanging in the cockpit. I remember being able to operate Part 135 as long as we had "two listening devices". Am planning on removing ours when we do the skylight mod.

I do find having one useful now and then. Such as when I'm in my hangar, outside the plane, and just want to turn it on for a minute to listen to the ATIS or traffic in the pattern. Or at a backcountry fly-in, and I want to stand outside the plane and listen to the folks arriving.

chris.johnson · Post by **chris.johnson** » Mon Mar 03, 2014 7:38 am

I am putting new headliner in and thought about leaving it out or moving it to an extra instrument hole. If I win the lottery and order an M9 the next owner might want a speaker.

pilot · Post by **pilot** » Mon Mar 03, 2014 7:55 am

I'm doing away with mine - ounces make pounds

I do like to listen to traffic, but usually have my handheld for that. Just something about leaving my power on when the plane isn't running that bothers me, just a personal thing I suppose.

Andy Young · Post by **Andy Young** » Mon Mar 03, 2014 8:02 am

pilot wrote: Just something about leaving my power on when the plane isn't running that bothers me, just a personal thing I suppose.

Yeah, certainly not good to do it for very long. Funny; I feel the same about using my handheld. I'm afraid to run it's battery down in case I need it in an emergency;).

chris.johnson · Post by **chris.johnson** » Mon Mar 03, 2014 9:45 am

My Yeasu handheld has battery pack, AA battery pack and cigar lighter power cord. If I leave my master switch on to listen to traffic it is a guarantee I will forget and have a dead battery the next day.

captnkirk · Post by **captnkirk** » Mon Mar 03, 2014 11:27 am

speaking of dead batteries do you guys use any trickle type chargers to maintain your battery.

Mountain Doctor · Post by **Mountain Doctor** » Mon Mar 03, 2014 12:04 pm

I use a Battery Tender. Same as on my motorcycles. I think this will really lengthen the life expectancy of my Concorde.

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