All seems to be progressing very nicely.
Rob.
All seems to be progressing very nicely.
Rob.
The Business of the commander-in-chief is first to bring an enemy fleet to battle on the most advantageous terms to himself, (I mean that of laying his ships close on board the enemy, as expeditiously as possible); and secondly to continue them there until the business is decided.
1/1/2018 New Years Day Update:
I started implementing the world physics model for the ships which will support movement throughout the world map. The examples below is for a single yard (main mast topsail) for sailing 90 degrees with a true wind direction from the North. The second example is sailing 6 points off of the wind from the north. The curve on the right is the sail's lift (Red) and drag (blue) coefficients vs the Angle of Attack of the apparent wind (you are seeing the overlay over a raster image of real world tests so I can align my curves correctly).
One last example: sailing with the wind off the quarter deck.
Note that the sail's force is generated more from drag than lift and that the apparent wind speed is a lot lower due to running with the wind.
The example above demonstrates that a captain could be at large sails running with the wind but if in strong winds he turns the ship the masts/sails can suddenly come under a lot of stress (over canvas). Beware!
At this stage the sail force calculations are working and need to be rolled properly into the ship class. I still need to think about the masking effects of a sail blocking a leeward sail. Then the work of hull drag will start to attain final speed calculations.
Happy New Years!
Last edited by Aaron; 01-01-2018 at 13:38.
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