Shaping the boom

This design has a hardwood boom incorporated into the fuselage. The boom is included in the kit as stock and needs to be shaped. Once determining that the boom is a uniform taper I transferred the shape by lining up the boom over the plan and marking both at several locations along the length. Then I measured the width of the boom on the plan at the markings and transferred these to the marks on the wood. Then I faired the line and cut/planed/sanded it to shape.