SM U-9.

This is coolbert:

"She [U-9] fired four of her torpedoes, reloading while submerged, and sank all three in less than an hour. 1,459 British sailors died. It was one of the most notable submarine actions of all time."

Submarine attack the Great War. For the first time naval history, major warships sunk by an enemy submarine using torpedoes.

German submarine SM U-9 with Otto Weddigen commanding.

Three major British warships sunk in less than a hour with great loss of life.

As was gleaned from an Internet web site that loss of life from the sinking of the three warships greater than the number of Royal Navy [RN] personnel killed at Trafalgar. This was a surprise to me.

Even STARTLING figures of which confirmation required.

"The Battle of Trafalgar (21 October 1805) was a naval engagement between the British Royal Navy and the combined fleets of the French and Spanish Navies during the War of the Third Coalition (August–December 1805) of the Napoleonic Wars (1803–1815)."

As listed and obtained from the wiki RN dead and wounded Trafalgar: "458 killed - 1,208 wounded."

Losses combined the HMS Hogue, HMS Cressy, HMS Aboukir:

"The combined total from all three ships was 837 men rescued and 62 officers and 1,397 ratings lost. Hogue lost 377 men."

About THREE TIMES the number of RN personnel lost in 1914 than 1805. Trafalgar seen within historical context as one of the most [perhaps the most storied] famous naval battles in history.

After the sinking of the Hogue, Cressy and Aboukir the capabilities of the submarine to cause massive damage and function as a vital component of naval warfare undeniable.

Each of those British warships sunk each discharging all their guns just once having the same firepower approximately so according to my calculations as a British army of about 30,000 men firing their Brown Bess muskets once!!

coolbert.