ANSWERS: 2
  • corkscew is the shape of the vortex being created by the propeller.. (as i see it) and plus.. propellers PUSH the water away and cut through it.. so to move the boat/sub forward.. corkscrews would drill through the water? depends on the way you design it.. corkscrew shapes would drag the bulk forward..
  • Only if the ocean was a bottle of wine...

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