Short answer: your 308 W is tow-power (effective power), not shaft power. Once you add realistic efficiencies and some missing physics, the number...
You’re on the right track. For a small standing lug ~33.6 ft² (3.12 m²) you can get a sweet-handling sail with simple panel shaping and sensible...
The other yon need is "Around The World Sailing Guide" at Amazon .com
The American Practical Navigator The absolute best book ever written is "THE AMERICAN PRACTICAL NAVIGATOR" I have seen it at Amazon.com as a...
