Big Girtha Rebuild Part 8 Engine Mount

On of the Big Betty 18mm centering rings was glued to the top of the two engine tubes. The engine blocks and tube ends were sanded flat for a better glue bond.
Those holes in the top center will have to be filled or the ejection charge would exit out the rear.

Using the second centering ring, a circle was drawn on scrap mat board.
The two crescent shaped cuts were made using an engine block.

I had to cut two filler pieces before I got it right.
To fit, the outside circle ended up cut outside the pencil line.
The filler piece was glued in place.

Use the inside of the engine block to mark a pencil circle.

The rest of the circles are cut out to allow more of the ejection to pass through.