Sorry, I've checked everywhere - but how do Oars and Sails work?
The book explains that you can rake oars, and that each ship type has a set number of oars each manned by a crew member, but there is no explanation if this number is used at any point in any rolls. So if I suffer huge crew losses and I'm down from 60 men to 14, surely this would effect Oars, as would an Oar Rake, but I don't know how.
On a similar note, Sails seem to be very briefly covered, if at all.
I'm confident I could whip up a houserule, but I wonder if there's some obvious explanation I've missed.
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The number of oars a ship has and the condition of the ships sails simply serve as information for the GM and players. For example, a ship with no oars but has a sail cannot move without the power of the wind and likewise a ship with it's sail destroyed can only be moved by rowing. As for a ship without either... well, you're at the mercy of the tides...
As for rolls, a GM could incur a negative modifier for manoeuvring a ship that only has a certain number of oars remaining/manned or has a damaged sail.