How do we know the tonnages U-boats sank?

Upvote:2

Any submarine would try to identify the target before firing. While mistakes are possible, both regarding the proper identification and the listed tonnage, reports would list what they thought they were shooting at.

For warships, the best-known reference is Jane's Fighting Ships. For instance, the 1978 edition lists 7 ships with the hull number "16", one "D 16", one "DE 16", and three "F 16" in various navies. So a ship spotting an "F 16" would have to check if it was the Diomede, the Umar Farooq, or the Oland.

Information got somewhat harder to get during wartime, as discussed in the comments to the OP, but navies produced manuals like FM 30-58, the US guide to Japanese warships.

o.m. 16635

📝 Explaining the data in the 2004 Republican primary results
📝 How much of the Napoleonic wars were paid by the sale of Louisiana?
📝 What kinds of documents were forged in the middle ages and how common was forgery?
📝 What are the origins of the "News Reel Voice"?
📝 What was the military equipment of a soldier of the Cholan Empire at its peak?
📝 How did Greece avoid the Soviet sphere of influence?
📝 How much did brigs of 200 tons vary in 1800?
📝 How were cities administered in the early Byzantine Empire?
📝 How have European countries affected the caste system in India?
📝 Dictators who came back through elections?
📝 Did Akhenaten's religion influence early Judaism?
📝 When did the Greeks stop calling themselves "Roman"?
📝 Medieval Saharan Caravan Navigation
📝 Is there any evidence that Assyrian or Babylonian kings ate their enemies?
📝 Was Latin widely spoken by European diplomats in the late 19th century?
📝 When was the first sauna on a ship?
📝 Why did the kingdoms of Scotland and England merge?
📝 Is David Graeber correct to assert that patriarchy did not exist in Sumeria?
📝 What examples are of French and Arab cultural integration?
📝 Why did the Athenian expedition to Sicily fail?
📝 Which ships arrived at Novo-Arkhangelsk between 1810 and 1815?
📝 Are there pyramids at Sternenfels?
📝 When the United States Congress passes an amendment, how are its votes counted?
📝 What are the contributions of Professor Hans List?
📝 How did the elite maintain the status quo throughout the British Colonies of North America?
📝 Why are most late medieval fencing manuals German?
📝 What are the earliest traces of slavery?
📝 Why didn't Gengis Khan invade India?
📝 When did countries begin making up a pretext before starting a war?
📝 How could one understand the essence of Greek mythology and the deep meanings? Understanding the belief system of Ancient Greeks

Source: stackoverflow.com

Travel Tips

Search Posts

📝 How do we know the tonnages U-boats sank?
📝 How do historians and linguists know how to pronounce the names from non-phonetic scripts?
📝 How do we know the gender distribution of cave art painters?
📝 How do historians know the details of a seemingly private event?
📝 Did the Ptolemaic Egyptians know how old the Pyramids were?
📝 How do we know that Louvre version of Mona Lisa painting is the original one painted by Leonardo Da Vinci?
📝 How does finding a Franklin ship change what we know about the expedition?
📝 How did the helmsman know what he was sailing towards with a big mast in his face?
📝 How did Lincoln know to stick with Grant before the completion of the Vicksburg campaign?
📝 How did Diego Gutiérrez know the boundaries (shape of the Americas) when he drew the 1562 Map of America
📝 How did Vasco da Gama know about the Southern Cross?
📝 How much did the western world know about the Soviet Union pre-WWII?
📝 How did Farragut know he could get his fleet through the Confederate line of "torpedos" at Mobile Bay?
📝 How effective were siege guns and gun boats compared to field artillery in the 19th century?
📝 In the 19th century, do we know how armor changed with respect to guns of the time?
📝 How do we know the oldest New Testament manuscripts are copies?
📝 How do we know that the Tiwanaku Empire actually existed as an empire
📝 How do we know the patricians of Rome?
📝 How did the HMAS Sydney know the real Straat Malakka's secret callsign, "IIKP", but not HSK Kormoran?
📝 How safe were ancient boats on the sea?
📝 How and when did the word "nuclear" replace the word "atomic"?
📝 How did Israel win the Six-Day War?
📝 How did the general population of England convert so smoothly to Protestantism?
📝 How did the USSR manage to innovate in an environment characterized by government censorship and high bureaucracy?
📝 How did the Romans do division?
📝 How did 300,000 people survive the 3 1/2 year siege of Sarajevo?
📝 When and how did the USA and the UK become allies?
📝 How did pilots know when to release bombs on airplanes during World War2?
📝 How did the authorities not find the speakeasy clubs during the prohibition?
📝 How did such a relatively minor event as the assassination of an archduke start World War I?

How do we know the tonnages U-boats sank?

More post

Search Posts

Related post