Dimensions for OMS Back Plate?

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OK, I wasn't going to make a project out of this, so all measurements are approximate. I dug out the aluminum one and didn't measure the SS one, though I think they're about the same. Unless you're trying to make your own, I think these are close enough for gummint work:

The length of the plate is about 15 3/4".
The length of the widest part of the plate is about 7", and the length of the tapered part of the plate is about 8 3/4".

The width of the bottom end of the plate is about 10 5/8".
The width of the top end of the taper is about 7" measured to the approximate middle of the radiused corners.

The top radius is about 3".
 
https://www.shearwater.com/products/perdix-ai/

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