Saturday, 11 June 2011

Weak Winds in Straits of Malacca

The last day I am sailing from Singapore NW in the Straits of Malacca in mostly weak and variable winds. 
The strategy for optimal sailing is now looking mostly to the block weather patterns now and in 12 hrs, as it is hardly possible to sail more then 1 block per 12 hrs weather update. 

Luckily UG have given some information on Crew energy reductions per actions and the recovery efficiency. 

sail change  - 12 % energy (this is UG info, my observation is 9%?)
heading change - 3 % energy
WP and auto sail - ? % energy, but be sure it cost you, pity that not more information on these are given. I count on the reductions for single actions + 3%. 
Recovery - 0.5 % per 10 min cycle, so 3 % per hour if you don't touch anything.
So a sail change is recovered in 4 hrs and a heading change in 1 hr. 

At least this is something to work with and set out the best strategy.

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