Propeller Tunnel
https://www.servogear.no/controllable-pitch-propellers/propeller-tunnel
Quote:
Reduced Hull Resistance
Based on experience from sea trials and model tests, a propeller tunnel normally reduces the hull's resistance in water. The reduction in resistance is caused by less transom area, which again reduces the loss in stern wave.
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1977 911S Targa 2.7L (CIS) Silver/Black
2012 Infiniti G37X Coupe (AWD) 3.7L Black on Black
1989 modified Scat II HP Hovercraft
George, Architect
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