Complex sentence: During May 1982, one Pucara (the X- 01 prototype) was fitted with Navy torpedoes and tested from the ARA Santisima Trinidad destroyer and despite some successes the system could not be used before the end of the conflict.
Split into simpler sentences: During May 1982, one Pucara (the X- 01 prototype) was fitted with Navy torpedoes and tested from the destroyer ARA Santisima Trinidad. Despite some successes the system could not be used before the end of the conflict.