Claim: Despite the fact that only some of the original materials were duplicated and the Carlson model is built with a fiberglass fuselage over a welded steel frame, Carlson set out to build his replica as closely as possible to the original, working from the only surviving documents, some sketches, a few photographs and one three-view drawing.
Evidence: Carlson set out to build his replica as closely as possible to the original, working from the only surviving documents, some sketches, a few photographs and one three-view drawing. The original materials were not duplicated and the Carlson model is built with a fiberglass fuselage over a welded steel frame, with a 2024-T3 aluminium tail cone, supported by internal bulkheads.