From 1750, Ozanne was schooled at the Ecole des Gardes de la Marine, ancestor of the École Navale, and in Paris, where he was a pupil of Duhamel du Monceau. He returned to Brest in 1764 with a commission of drawing professor at the naval academy.
From 1771 to 1772, he took part in a scientific expedition on the frigate Flore, and in 1776, on the Boussole.
In 1788, he directed the plans of the 74-gun Vengeur, earning a commission of naval engineer in the process.
Ozanne contributed to the propaganda of the Revolutionary era by commissioning two notable works: le Vengeur du Peuple au combat de prairial, in 1795, depicting the highly romanticised tale of the sinking of Vengeur du Peuple; and Le combat de la Bayonnaise, in 1798, depicting the capture of the 32-gun HMS Ambuscade by the 24-gun Bayonnaise.
In 1801, he was made a captaine de vaisseau. He was present at the Crown of Napoleon, representing naval engineering. Ozanne notably directed the construction of an enlarged version of the Téméraire class, the 86-gun Vétéran, that served as the personal ship of Napoleon's brother Jérôme.
Ozanne retired in 1811 in Brest.
- "Map of the Attack and the Taking of the Island of Grenada on July 3, 1779". World Digital Library. Retrieved 19 April 2013.
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