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Wing-Spar Seastead (Half-Submerged)
Wing-spar concept (1 unit = 1 ft)
Wing cross-section: ~10 ft chord, ~5 ft thick
Spar length: ~39 ft (shown half-submerged at waterline)
Thrusters: 4 per side (underwater), near thick section
Drag to orbit, wheel to zoom.
```