Originally posted by MemaSue:
How what mph does the wind have to blow to make the ship rocky?
Ok let's see.
Air weighs 1.2g per liter
22 mph is about 10 meters/sec
so a 10 x 10 x 10 meter block of air is a million liters so it weighs 1.2 million grams
or 1200 kilograms.
Using the Glory at 110,000 gross tons is 9.87 x 10 to the 7th kilograms, divide by 1200kg is 8 times 10 to the 4th 10x10x10 meter blocks. How many of these are there pushing on the Glory?
We need the sail space on the windward side of the Glory.....
Oh I don't know..