We used a long RHS welded to the surplus plate at the front to get leverage to wrap the plate around the tight curve.
A view of the bulb of our Didi 40 Cr from the stern
We have finished plating the keel delta bulb on our Didi 40 Cr. I worked with the fabricator to ensure that the plate wrapped properly around the foil shapes and the process went remarkably smoothly. it helped that we left the 3 mm plate about 300 mm over length at the front and that we welded a RHS to the front to give us leverage. The large section of surplus plate at the front ensured that the plate wrapped smoothly.