Thingy on top of Turn and Bank

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sbmackie
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Thingy on top of Turn and Bank

Post by sbmackie »

In the pic below, there is a disc screwed into the rear of the T and B (Vacuum) What is the disc for?

Thanks
T and B.jpg
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a64pilot
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Re: Thingy on top of Turn and Bank

Post by a64pilot »

God that thing looks as old as the WWII instruments that were in mine.

My guess is that it’s a valve so that you can change the amount of airflow through the instrument. But that’s a guess.

I’ve never worked in a Vacuum T&B, does it only have one hose that goes to it? If so then could the disk hold an air filter?
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8102
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Re: Thingy on top of Turn and Bank

Post by 8102 »

I found this image online from a 1940's manual. Looks like the "thingy" could be a filter.

Gregg
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2066
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Re: Thingy on top of Turn and Bank

Post by 2066 »

AN TURN AND BANK AIR FILTER.jpg
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6643
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Re: Thingy on top of Turn and Bank

Post by 6643 »

Yup!

Take the staples out and change the paper with bits cut from a coffee filter.
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