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For questions relating to water-based vessels. Ships in space should use the spaceship tag.

18
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10answers
5k views

Is it possible to bind multiple ships together on open water?

In Renaissance period, would it be possible to safely bind ships together for extended periods of time? Imagine if there was a fleet of large ships (say, two dozen) that have been traveling over a ...
32
votes
18answers
5k views

How would a ship defend against a sea creature, and possibly win?

I have a Viking-inspired race living on a harsh ocean based planet with very rough and cold seas. In these seas there are giant creatures, not unlike kraken who frequently attack ships. I was thinking ...
1
vote
0answers
186 views

How many aircraft could this submarine aircraft carrier carry on its flight deck? [closed]

I have a humongous submarine aircraft carrier (dubbed a Kharybdis-class submarine) shaped like a triangular arrowhead. This submarine can launch a wide variety of aircraft from its flight deck such as ...
5
votes
5answers
149 views

The practicality and feasibility of a fully-submersible aircraft carrier

There's this organisation with an underwater naval base on Île Pott masquerading as a third rate hotel resort. Said base features several underwater hangars housing a considerable fleet comprised of ...
8
votes
2answers
117 views

How quickly could a Norse longboat get from Denmark to “Vinland” (Newfoundland) and beyond?

Alright, departing from my usual fantasy setting to something of a thought experiment. Let's say, for argument's sake, some Dane longboat captain in the 10th or 11th century worked out how to make a ...
1
vote
6answers
844 views

Crashland onto a new planet: Origin of the Legal System?

I've been researching the origins of my world's legal system. I'm trying to develop it over time in a somewhat logical and organic manner and I've come to realise that I don't yet have a clear idea of ...
12
votes
12answers
4k views

How would a sailing ship travel on land?

Or, more specifically : How, starting with a regular ~16th something-century sailing ship, could it be possible to modify it to go on both land and sea? In a pre-industrial setting, no fuel, no steam. ...
37
votes
15answers
10k views

The Infinite Sea, how narrow can that be?

I have a Roleplay setting on the books. It's a constructed pocket universe that the Dragons built to hide from the Great Old Ones; because of its structure, there are vast bodies of water, potentially ...
-2
votes
2answers
81 views

What would a royal wedding on a ship in the 18th century have been like? [closed]

What would a royal wedding from the 18th century would look like? Just imagine that a prince must get married fast and the kingdom decides that the wedding will be on a ship, could it be possible?: ...
6
votes
6answers
268 views

How small of a boat can sustain itself in the ocean?

So my hero (henceforth Bob) has become disgusted with all that society has to offer. He decides to set sail on a ship, never to return to the mainland supercontinent again (this is WWI tech, so you ...
6
votes
4answers
218 views

How long could a modern oil tanker last without maintenance?

After the apocalypse, In Baja California, off the coast of Tijuana, there is the wreckage of the oil tanker, Exxon-Cazador, which was run aground and abandoned by its crew while the first bombs ...
12
votes
4answers
1k views

How could an outrigger or catamaran ship be modified for age of sail naval combat?

If Age of Sail era Ships were to come into regular contact with Polynesian outrigger and Catamaran ships like the Hōkūleʻa, and the people using the ships did not start using the foreign design of ...
3
votes
5answers
206 views

Could a Fire Mage create an ocean current to propel a ship?

If a mage with the ability to generate heat, used this to heat the water around an ocean vessel, would they be able to do it in such a way that propels the ship? I was thinking something similar to ...
-2
votes
1answer
163 views

Is a windmill battleship in a medieval setting viable?

Imagine a giant Chinese Treasure Ship-class. Could it ever be possible that a warship like that could be propelled by windmills and a water turbine/wheel instead of sails?
7
votes
9answers
1k views

What post-war technologies would be essential or beneficial to a new construction battleship?

My world operates under a few assumptions, and changes to those assumptions are outside of the scope of this question: Aircraft are not considered to be any threat to warships, and due to some ...
5
votes
5answers
193 views

Depth Charges against Surface Vessels

Previously, a treaty was signed that effectively banned air-dropped bombs, and military versions of rockets and missiles. That treaty leaves a gap as far as Depth Charges go, and this is not precisely ...
54
votes
6answers
8k views

What skills would an early-1500s era ship captain need to learn to become a modern-day sailor (and eventually a captain again)?

Let us take a reasonably skilled (i.e. someone who knew their way around the boat as well as how to navigate) ship's captain from around the beginning of the Age of Sail (late 1400s to early 1500s), ...
4
votes
4answers
236 views

Could a giant floating self-supporting city survive a thousand year voyage?

One of the main plots in my world is that a huge ship arrives in a strange group of isles. This ship a gigantic city that completely self-supports itself with farms, houses, gardens, parks, and even ...
3
votes
1answer
117 views

Trying to Understand the Physics of How a Drillship Could Trap A Giant Underwater Alien Object Beneath Itself

Forgive me for misusing any terms. This is a subject I'm not knowledgeable in at all aside from doing some online research. In the novel I'm writing, I have an abandoned scientific polar research ...
-1
votes
5answers
199 views

Fleet defenses against massive creatures [closed]

In my fantasy world, humanity thrives on massive migratory fleets, moving in large numbers between the sparse islands. However, there are massive creatures that live in these places in between, ...
19
votes
10answers
3k views

How to keep a ship's crew healthy in a fantasy renaissance setting?

So, in the age of sail, there where hundreds of dangers lurking in ships, mostly in the form of sickness such as scurvy, and I'm looking for a way to have sailors in a similar technology level as ...
5
votes
4answers
572 views

Maximum Ship Size with Seasickness?

What is the maximum size a ship can become without negating the effects of waves to the point where seasickness is no longer a problem? The larger a ship becomes, the smaller the rocking effect waves ...
1
vote
2answers
144 views

How large would a Yacht need to be in order to support a crew? [closed]

The Yacht (I am using the term Yacht for the design style/aura I have in mind) needs to produce enough food and water for a crew of 40 permanent residents and up to 30 additional passengers at a time. ...
8
votes
6answers
2k views

Could a classical era or middle ages civilization advance in shipbuilding and colonize multiple distant continents?

Could a classical era or middle ages civilization advance in shipbuilding technology alone and develop ships like carracks that could circumnavigate a world's oceans allowing them to colonize other ...
7
votes
7answers
390 views

Floating island made of concrete, part 1: can it be made of roman concrete?

I'm working on this concept. A floating island a mile long and 200 meters wide that would travel eternally in a wide circle between Western Europe and the Americas. I am going to make some diferente ...
1
vote
8answers
237 views

Is it possible to control trade?

In my Medieval world there are two vast continents. The first of them is similar to Eurasia spreading from East to West, and the second is like Africa but not so arid. The shape of the Southern ...
5
votes
7answers
423 views

How to get confirmation regarding the identity of military naval vessels as a civilian? [closed]

Exposition Fictional organisation A wants to effectively fake military presence at sea - a remote location far away from any civilization, trade routes, radar/sonar stations. The target is a single ...
6
votes
3answers
682 views

Which are the requirements for a medieval warship to travel the high seas?

The warship is supposed to travel somewhere like Australia - South America and in some glacial waters such arctic ocean. Some questions Size Could they be big with more than four masts? Is a wooden-...
14
votes
14answers
5k views

Deep Space bomber - Best bomb against Interstellar warship that is kilometers long in size

We have two opposing forces: the Democrats and the Imperialists. Each one can field an armada of ships numbering millions in their fleets, supported by trillions- to a quadrillion person strong super ...
8
votes
4answers
276 views

Boats from space in planetary invasion

Here is the scenario: Two factions, one defending its planet, the other attacking it. The winning condition for attackers is capture of leadership, so boot on the ground are required. The planet is ...
22
votes
5answers
6k views

How deep must a submarine dive to avoid megastorms?

In a previous question, I established an area that creates megastorms. Unlike a bunch of my other questions, this one is incredibly straightforward: Just how deep does a submarine (Or aquatic life, ...
13
votes
5answers
770 views

Breaking the T - An Inversion of the classic Crossing the T

Shortly after the Washington Naval Treaty, the British designed and built two Nelson-Class Battleships, and a decade later these designs inspired the French Richelieu-Class Battleships. Both of these ...
0
votes
2answers
164 views

How would widely available and effective sailing affect warfare in a medieval world?

If effective sailing (developments such as rigging allowing tacking, much higher speeds and larger ships, making ships similar to ones of the 1700-1800 era available) became available during the ...
8
votes
2answers
337 views

Firing battleship main guns in an enclosed space

We've built a nice, sturdy enclosure to house one of our drydocks to do covert work on a battleship without people easily spying on us. As such, there are no significant windows. Additionally, it's ...
6
votes
8answers
3k views

What would cause governments to completely avoid maritime affairs?

In a magic, high medieval, setting what factors could contribute to governments avoiding maritime affairs with the exception of perhaps simple coast guards to prevent smuggling, given they are coastal ...
24
votes
5answers
3k views

Advantages/Disadvantages with Large Naval Guns

When it comes to naval guns, bigger isn't always better. The 46cm/18.1" guns on the Yamato-class battleships didn't have much in the way of advantages over the Iowa-class's 40.6/16" guns. Yet the ...
6
votes
10answers
2k views

Long Range Big Guns: An extreme bombardment ship

The Schwerer Gustav is one of the largest guns ever used - by many measurements, it is the largest. But it lacks range. It was, however, designed to be an extreme bunker buster, a job which it could ...
4
votes
3answers
126 views

I need a cool sort of boat with medieval tech that can go under water Magic is possible [closed]

What type of ship with medieval times tech and Magic (explanation follows later) can go underwater and ram other ships? In my universe leviathans exist. Leviathans are basically giant sea monsters. ...
1
vote
2answers
257 views

A Cargo Ship Big as a Star Destroyer

In the world of steampunk, regular means of transportation are bigger in size than in real life. This scenario regards cargo transportation. The largest so far is China's CSCL Globe, no longer than ...
6
votes
4answers
414 views

Sea Travel Variables

Basically, I am looking for variables in travel for the same ocean or sea journey, along the coast, but in the opposite direction. No motors, just standard 15th century ships. I am building a world ...
16
votes
3answers
3k views

How long could an operational Virginia-class sub survive in the Jurassic sea?

A nuclear attack submarine carrying a crew of, at least, a hundred people went missing in the North Atlantic Ocean, its last known location was the Bermuda Triangle where ships and planes have ...
28
votes
11answers
3k views

Victorian Ship Weighing

In a Victorian society, an engineer has come up with a clever boat lift for his canal, using counterweights. In order to work correctly and most efficiently, the operators will need to know how much ...
13
votes
3answers
451 views

Trade between humans and underwater fish people

In my high fantasy medieval world, the ocean is populated by underwater fish people and land dominated by your good old human. Different type of fish people (shark, whale, turtle, shellfish, etc.) ...
11
votes
4answers
2k views

What should a container ship look like, that easily cruises through hurricane?

Technology: Comparable to early XXIst century, except self-driving vehicles are already available. On a tidally locked planet most of the models that I can found (ex. http://www.meteo.mcgill.ca/~...
2
votes
4answers
328 views

Non-Enclosed Boat/Backless Boat?

I was considering the possibility mermaids might make use of sailing ships similar to the USS Monitor, but with sails and supposedly wood. Now, the mermaids wouldn't mind the ship being filled with ...
1
vote
1answer
104 views

Landships in an Ice World

Imagine a landship that can travel on a mostly frozen icy world. How big can it be while being capable of traveling and being self sustaining? It should be able to; travel great distances be self ...
4
votes
1answer
174 views

What would ancient Horn-of-Africa sailors eat on ship?

In my universe, the Horn of Africa is the hub of magical and technological advancement before its downfall in approximately 1 BC. What would ancient merchant sailors eat on a third rate ship (think ...
3
votes
2answers
278 views

Succesfully boarding a ship against a stronger opponent [closed]

Today I'll need some ideas for another story of mine. In that story, imagine you're the captain of a small and fast XVth / XVIth century ship, with canons from that era and stuff like that, in a ...
5
votes
2answers
270 views

Shipbuilding development in fantasy ancient city-state

I am trying to establish a few guidelines for a story I recently started jotting down, based in a seafaring city-state. The setting is a fantasy world and I would like to have some degree of realism ...
0
votes
1answer
140 views

Would towing icebergs to drought stricken countries be feasible? [closed]

It seems a simple solution to the world's water problems if it were feasible. What Would be entailed for such a monumental task, if say, the iceberg was 100 tons, and traveling from Greenland to the ...