Bank/turn indicator instrument question
I'm considering ripping the curved tube out of an aircraft bank
indicator to use an inclinometer (or clinometer) on a bicycle.
There's a bicycle bubble level on the market but I don't think it's a
good design.
My question is, on aircraft bank indicators, why do they look like they
are about 6" deep? What is in this rear of the instrument? I'm sure
there's a light bulb in there but this does not explain it. Perhaps
there's more to it than a steel ball in a tube?
Thanks for your help.
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