after we noticed slight shifts of maybe one degree in heading on the HSI
that appeared random. Turns out that it was metal on our person. A 1/16"
drill bit six inches away produced a one degree shift in heading when
moved around. I wanted to find the effect of the steel shanks in the
Avex rivets so I came up with a 10" strip of 020 with spacing of 1".
Waving it around did not produce any movement of the HSI. They are
amazingly sensitive but it seems that 2 feet separation is a pretty good
number for aircraft structures.
Bob.
Ron Shannon wrote:
Well fiddle faddle. Although there is no reference to this in the AFS
documentation, there is some discussion on the AFS support forum about
separation, including 2 ft. separation being optimal, as recommeded by
Crossbow. However, Rob Hickman, AFS founder/owner, has his 10" apart in his
RV-10. (*http://tinyurl.com/dzv7td)* Looks like I'll be building a new,
extended base plate, so I can set the second one further aft, cantilevered
behind the bulkhead. A PITA, but doable. Thanks for the heads up.
Ron
On Sun, May 3, 2009 at 11:30 PM, Bob Palmer <rtpalmer@shaw.ca> wrote:
Ron,
I am surprised that your mags are so close together. I was told that
mine (Blue Mountain Sport) should be at least two feet apart.
Bob.
(Elite)
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