King George V on board his yacht 'Britannia' for start of Cowes Week Regatta

The video covers the opening of Cowes Week, a prestigious regatta, with the presence of the King and Queen. It highlights the start of a 44-mile yacht race led by Britannia and other large racing yachts. The narrative follows the race's progress, focusing on the lead taken by general quarters and the preparation of Britannia. The video concludes with the starting signal for the race, marked by the echo of a gun boom over the water.

What does the starting signal indicate during the race?

Describe the atmosphere during the start of the race.