Napoleon navy

idd144 is asking the Battle of Trafraglar. The reasons for defeat of French Navy in this battle was very complicated. Generally, British Navy had better tactics, this was due to they have the best commander, Nelson. Nelson was a veteran who had battle with French Navy on 1799 in Egypt, so he had some basic ideas about how the French Navy was.
Besides, since Napoleon's fleet was actually an alliance (with Spanish Navy), the alliance fleet also changed their commander days before the battle, that made the fleet cannot have enough time to do good training and cooperations and the morale of Emperor's fleet fell. The French Navy also received wrong intelligence which said Nelson would appear in West Indices, which located in Caribbean. So the French commander launch his fleet to chase the virtual fleet across Atlantic Ocean, this made the French fleet's morale fell more when they back.
However, the British fleet was lead by a experienced and highly respected commander. The fleet crew had high morale since they came from same country and they all felt that they were protecting their home country. And British Navy were the best in the world at that time, but French Navy was just mediocre. that means Napoleon could not use his formidable army to fight Britain. All of the above reasons made British Navy was slightly better than French on the sea and Britain won at last.

Well I am confused by your question. Of which battle you are refering to? And as far as I know the Continential System had nothing to do with the battle, instead it was just part of Napoleon I's strategy against the United Kingdom.

You will have to learn more about the French navy and the Royal Navy before you can understanding how things went on in the battles between First French Empire and the United Kingdom in the Napoleonic Wars. For more information on the Royal Navy please visit: http://napoleonistyka.atspace.com/navy.htm

In my opinion, Napoleon failed to defeat the United Kingdom because the French sea power was not as strong as the British. Britain, as we all know, is an island, surrounded by seas. From the age of the Vikings British navy had been very strong, and even became a frighten to Germany during the World Wars in the 20th century. Also, as many battles are fought during the year 1805 by Napoleon, his army started to get exhausted. Napoleon lost men after battles and battles. The greatest failure of Napoleon could clearly be seen in the Russian Campaign.