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A 1×2 has been carefully aligned horizontally on the outside of the thrust duct. This will serve as an anchor for both the thrust duct braces and for the upper rudder mounts. |
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1/8″ x 1″ aluminum flat bar used to make four mounts to attach the thrust duct fins to the engine stand. |
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The thrust duct support fins mounted to the engine stand. |
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The thrust duct support fins (made from 1/4″ plywood) are temporarily attached, and 3/4″ EMT is being fitted for support braces from the rear of the cockpit structure to the top of the thrust duct. |
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The EMT support braces have been welded to 1/8″ steel endplates that will be used to bolt the braces to the duct and cockpit structure. |
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Test fitting the brace mount on the thrust duct. |
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Both braces and support fins in place. |
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I have added triangular strips of wood above the 1×2 supports to make a smooth transition into the thrust duct. The hole assembly is then fiberglassed into the duct. |