If we take as an example a
French typical frigate such as a Virginie class (
http://en.wikipedia.org/wiki/Virginie_class_frigate) weighing in at around 720 tonnes and about 47m long, beam 12m, draught 5.5m
colliding with a SOL such as
Conqueror 74 (
http://en.wikipedia.org/wiki/HMS_Conqueror_%281801%29) at 1850 tons and around 54m+,beam 15m, draught 7?m.
giving a weight differential of around 2.4:1 Given a frigate trying to block a SOL one would assume that if a collision happens, then worst case is a straight on hit at right angles with the SOL smashing into the side of the frigate. My physics is a bit rusty but I think that means the entire momentum of the larger ship is going to strike the smaller amidships, assuming the larger ship is stopped by the collision, the smaller will give some ground (ships dont force move well laterally) and roll away from the larger ship unless the two become completely entangled. Modern ships in this situation can cut the smaller ship in two, but it is probably different in the age of sail and the speeds were generally pretty slow (2-7knots). Nevertheless I cant recall this ever happening deliberately between a frigate and a SOL, but would be interested to hear of an episode.
David??? What happens to the frigate? My feeling is she's heavily damaged but probably not sunk or wrecked, the SOL suffers damage to bowsprit, maybe foremast comes down?