Here are two pictures showing removal of the Styrofoam plug from the cowl shell using a Dremel oscillatory tool with a scraper blade. Amazing how the foam increases in volume as chip and chunks.
https://s3.amazonaws.com/expercraft/sidwood/76336265152d5df7073dfa.jpg https://s3.amazonaws.com/expercraft/sidwood/144869089252d5df7076508.jpg Next after some more prep, will put another layer of glass inside the shell and 4 layers to support the edges and the fastening hardware. Then on to construction for the cooling ducts. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA
