Havana's shipyard (named El Arsenal) was extremely active, thanks to the lumber resources available in the vicinity of the city. The Santísima Trinidad was the largest warship of her time. Launched in 1769, she was about long, had three decks and 120 cannons. She was later upgraded to as many as 144 cannons and four decks. She sank following the Battle of Trafalgar in 1805. This ship cost 40,000 pesos fuertes of the time, which gives an idea of the importance of the Arsenal, by comparing its cost to the 26 million pesos fuertes and 109 ships produced during the Arsenal's existence.
