There will be times when it it necessary to determine whether the adventurers are able to keep control of their vessel and the Boat Handling test is used for this.
Characters who do not have the relevant skill make a Boat Handling test based on half this value.
On a sailing boat, the Boat Handling test is made by the character who is manning the tiller; on a rowing boat, it is made by the oarsman with the highest test value.
Characters with River Lore skill have a +10 bonus to all Boat Handling tests - but only while on rivers or canals.
Skilled characters will be able to keep the vessel under control under most circumstances and should only make Boat Handling tests where a specified event or encounter calls for them.
Unskilled characters must make a Boat Handling test at the start of every day's travel: if the test is successful, the boat's movement allowance is unchanged for that day; if the test is failed by 50% or less, the boat's movement allowance is reduced by 25% for that day; if the test is failed by more than 50%, the boat's movement allowance is halved for that day.