REFLECTOR: compass and magnets

[gattenby at tulsaconnect.com]

Many years ago... when I was still working on my private 
ticket.
Another student (I swear it wasn't me) left Riverside 
airport in Tulsa
headed for Shawnee (about an hour west in a 152).
About 4 hours later he landed at Vance Air Force base in 
Enid
about 150 miles north and west of Shawnee.
The air force wasn't very happy about him not contacting 
their tower 1st.

The story was that he had placed a magneticaly mounted 
"plastic jesus" on the dash
directly under the magnetic compass, and that he had flown 
in circles until
he finaly found an airport!

I know the 1st part of the story to be true,
The 2nd part may or not be, but that's what my flight 
instrutor told me.
(and he worked for Spartin - that owned the plane)

Take care with those magnets...

Noel


On Sat, 23 Feb 2008 09:20:45 -0800 (PST)
  Andrew Ellzey <ajlz72756 at yahoo.com> wrote:
> Doug,
> 
> The only issue that I see with your installation is that 
>it could be too close to your whiskey compass. I believe 
>you might have trouble adjusting it when you do your 
>compass swing adjustments. I owned a Cessna 150 in 1986 
>when I got my license. Just before I flew my solo long 
>cross country, the radio speaker located above the pilot 
>left door quit working. Not having time to order a new 
>speaker before my scheduled flight, I installed a same 
>size 6X9 car radio speaker at the same location and made 
>my flight. What I found was that on the third leg flying 
>due east, my compass was off 15 degrees. Until I figured 
>out what was going on, I thought I had a strong cross 
>wind. I did a compass swing and adjusted the compass a 
>few days latter but never could get it as close as the 
>original adjustment. The only difference between the 
>speakers was the strength and size of the magnets. Your 
>results may vary.
> 
> Andy Ellzey
> 
> 
> 
> ----- Original Message ----
>From: "doug.holub at tx.rr.com" <doug.holub at tx.rr.com>
> To: reflector at tvbf.org
> Sent: Saturday, February 23, 2008 10:21:32 AM
> Subject: REFLECTOR: speaker in the cabin
> 
> You guys convinced me that a radio speaker in the cabin 
>was a nice convenience, so I ordered a 3 W, 4 ohm speaker 
>from Mouser.  I didn't realize that it was only about 1 
>inch in diameter. I was going to return it, but then on 
>Valentine's Day I got one of those musical cards for my 
>wife.  It was playing "Don't Worry, Be Happy", and I was 
>amazed at how good it sounded with that little speaker. 
>So I installed the 3 W speaker today in the glare shield 
>in front of the pilot near where the windshield hits the 
>glare shield. The intersection of the windshield and the 
>glare shield forms a natural megaphone, and I think the 
>glare shield is also acting like a sounding board. The 
>sound is clear and plenty loud. FYI.
> 
> Doug Holub
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