Warp-Shell
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ElectroMagnetic Reaction Drive
Described initially here in this NSF post, this design has gone through several changes. The base hexagon cone design has remained the same. Three cones are planned, one solid copper frustum to replicate other designs, one with perforated copper for the walls to allow for thermal venting, and one unknown.
Basic design <ref>Forum post 1385165</ref>:
More detailed dimensions <ref>Forum post 1393189</ref>
Test rig <ref>Forum post 1401254</ref>
Further information as to the geometry can be found in the following links:
1387199 (old floating design)
1387435 (old floating design)
1387442 (old floating design)
1387445 (old floating design)