In February, the Royal Navy's submarine HMS Talent (S92) __________ the upgraded Spearfish torpedo near the Isle of Skye to rigorously test it before it ________ service.

During the three-day trial, the torpedo ________ at Talent three times and ________ to safely pass the submarine.

The trials ________ valuable data in the final stages of the upgraded torpedo's development ahead of its entry into service.

The operational version of the weapon __________ to all front-line Royal Navy submarines by 2025.

(Adapted from https://www.navaltoday.com)