Pellew was aware that his frigate was heavily outclassed by his much larger opponent, and that Amazon, which was 8 nautical miles (15 km) distant, was not large enough to redress the balance when it did arrive. He correctly assumed, however, that the ocean was too rough to allow Lacrosse to open his lower gunports without the risk that heavy waves would enter them and cause Droits de l'Homme to founder.[18] In fact, the French ship was totally unable to open her lower deck gunports during the action: an unusual design feature had the ports 14 inches (36 cm) lower than was normal and as a result the sea poured in at any attempt to open them, preventing any gunnery at all from the lower deck and halving the ship's firepower.[19] Although this reduced the number of available guns on the French vessel, Lacrosse still held the advantage in terms of size, weight of shot and manpower. The French situation was worsened however by the loss of the topmasts: this caused their ship to roll so severely in the high seas that it was far more difficult both to steer the ship and to aim the guns than on the British vessels.[17]