Structural Spar
AssemblyThe internal load-carrying beam: thick unidirectional spar caps bonded into both shells and tied together by shear webs, so the blade behaves as an I-beam in bending. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Structural Spar
5 top-level lines as of r189969| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Spar Cap | wtb-spar-cap | 2× | 2 | · | part |
| 2 | Shear Web 3 parts | wtb-shear-web | 2× | 2 | 0 | assembly |
| 3 | Unidirectional Laminate | wtb-ud-laminate | 1× | 1 | · | part |
| 4 | Shear-Web Core | wtb-web-core | 2× | 2 | · | part |
| 5 | Bond Flange | wtb-bond-flange | 4× | 4 | · | part |