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Questions tagged [vehicles]

For questions about implemented technology that can be used for transportation. For questions about the act of transportation, consider using [transportation] instead.

4
votes
1answer
76 views

Atmospheric pressure engine train in the 15th-16th century

With the knowledge and tools required, could an atmospheric pressure engine train be built in the 15th-16th century? If so how effective would it be and what change would it bring to the world in that ...
19
votes
8answers
11k views

Car headlights in a world without electricity

In a world like ours in the 1980s, but which for whatever reason does not use any form of electricity. (Either it does not exist or batteries and generators etc have not been invented.) For purposes ...
2
votes
9answers
280 views

Logical reason why motor vehicles wouldn't be allowed in post-war towns?

So, I am creating a post-apocalyptic world set 97 years after nuclear war, in the former state of California, AD 2059. The Californians, compared to the rests of the wastes, have done well for ...
4
votes
6answers
417 views

Causing motorcycle crashes with a sniper rifle, no evidence left

If you wanted to force motorcycles to crash utilizing a sniper rifle from no more than 800 yards, what part of the bikes would you aim for to not only cause the rider to lose control, but not leave ...
3
votes
4answers
154 views

Can you create a living vehicle fueled by organic material?

In this world, the vehicles are effectively re-engineered insects; enlarged bio-manufactured nervous systems used instead of engines; factory grown lightweight chassis / [wheels]. The fuel station ...
8
votes
4answers
223 views

Propulsion Systems

In my world, 500 years in the future, my population fits anti-gravity engines to salvaged boats as a form of transport. These transports fly close to the Earth's surface and are powered by a highly ...
2
votes
2answers
65 views

Bicycles/human-powered vehicles on low gravity planets/moons?

In this scenario, humanity has managed to colonise some of the solar system, including Mars, some of the moons of Saturn and Jupiter and some of the larger asteroids of the belt. In most places they ...
7
votes
3answers
230 views

Designing drop-pods for humans

With the increasing amount of sci-fi using drop-pods to get their soldiers on the ground I would like to look at the design and how a proper drop-pod should look. The look and shape of such a drop-...
1
vote
3answers
154 views

Aeolipile vehicle in the 14-15th century [closed]

If this was ever invented, how effective would it be? And how can it be improved upon to perhaps be the first steam train?
7
votes
8answers
360 views

Would a double-decker tri-articulated bus work effectively?

In my setting, the planet is grossly overpopulated. Vehicles are required to carry large loads of people from place to place. Bi-articulated buses are a necessity and have replaced regular buses as a ...
39
votes
20answers
11k views

A road system with no traffic rules - what sort of vehicle is best?

In Britopia there were the Leftists who believed motorists should drive on the left and the Rightists who believed they should drive on the Right. The vote split exactly down the middle and it was ...
4
votes
7answers
978 views

Could a group of scientists repair a truck to run on steam?

It is currently the year 2059. 97 years ago, the Cuban Missile Crisis went hot, and nuclear war between the USA and USSR became a sudden reality. The people alive now are 3rd and 4th generation ...
5
votes
5answers
235 views

Designing vehicles for different gravities

In my story, humans have colonized both a high-G and a low-G world in the same star system. How would surface vehicles have to be designed differently for practicality and economy on each of those ...
37
votes
3answers
7k views

Would EMP From a Nuke Stall a car?

In my story a man who works in Military Intel gets early warning that a nuclear attack on his base is inbound. He abandons his post, grabs his wife and kid from on base housing, and books it out of ...
2
votes
6answers
2k views

Feasibility of electrically heated steam engine

I was looking into the Dobles of years past after watching videos of Jay Leno's Doble E-20 and was trying to imagine how one could make the steam car a viable competitor to EVs and obviously one of ...
3
votes
1answer
140 views

How much can you tow with a steam vehicle and still have the ability to turn?

How much can you tow with a steam vehicle and still have the ability to turn? We are working with very early steam engines, so multiple pistons are not fancied, but accepted. Size is of no mater ...
121
votes
33answers
28k views

What vehicle would be the best one to start a >1000 km travel in a post apocalyptic zombie situation?

In order to define the best vehicle these inputs have to be taken into account: The zombies are the classical ones, "the walking dead" ones are a perfect example (definitely killed only by headshot, ...
-2
votes
2answers
118 views

Traffic using personal airplanes? [closed]

Technology has advanced to the point where personal airplanes cost \$20,000 to \$30,000 (new). They can go as fast and as far as today's typical jet airplanes. For this question, you can assume that ...
27
votes
9answers
6k views

Sailing without wind, but with strong currents

Context On my world, there is a lot of water: sea, oceans, ... There are also firm land and islands, so it's interesting to travel on the water. The problem is that there is NO wind at all, and lots ...
5
votes
3answers
110 views

Wheel-based vehicle vs Ground-gliders

In a mostly snowy world (snow deserts, snow jungles, etc) with a few underground cities built with magitek, most popular vehicles are rovers/gliders (think speeder bike from Star Wars). Would there be ...
10
votes
8answers
2k views

Low Gravity Urban Combat Tank

Which would work better for a small tank designed for urban use on low gravity worlds (inside cities on moons and such) tracks, wheels or something else?
2
votes
5answers
218 views

How to make my motorcycle rider survive driving into a wall?

Question I am currently trying to create a dramatic introduction for one of my characters, John Smith. The current iteration of the idea has him suddenly colliding with a solid wall on a motorbike, ...
21
votes
17answers
6k views

What is the viability of trains on planets covered in water?

I want to write a science fiction book on a planet mostly covered by ocean, but I also want to incorporate trains into my story. However, it seems that with advances in ship and plane technology, ...
6
votes
2answers
337 views

What would the “tanks” of an underwater race look like?

Note: Some answers will refer to not just tanks, as previously I asked about military vehicles in general, then edited it because it was too broad. So, right now I'm working on a project centred ...
-3
votes
2answers
145 views

If humans adapted to survive car crashes what would our physiology be like? [closed]

A good scenario for this situation would be roads got more dangerous and cars were not improving for more people to survive car crashes. in this world they became more common. what would our ...
16
votes
8answers
3k views

Would trams be workable on a low-gravity world?

After reading this thread from a bit under a year and a half ago about the most cost-effective means of travel on Mars, where one of the answers mentions rail as the best option, I started wondering: ...
0
votes
3answers
329 views

Is there any other material that can be used to make tires?

After a nuclear war many technologies were lost to history. One of these technological marvels that was lost is the process of making rubber. For nearly 500 years, scientists have tried to recreate ...
0
votes
3answers
113 views

Zombie killer vehicle [duplicate]

In a The Walking Dead™ world, what vehicle could be cobbled together, or used as is, to be: impervious to zombies - not get bogged, damaged or stopped by "herds" of them kill (severe head trauma is ...
7
votes
2answers
413 views

How practical is the sandcrawler as a vehicle?

A sandcrawler is is a tracked vehicle about 40 meters long, 20 meters tall, and 15 meters wide. It has a thick outer hull for protection from the elements. It has eight sets of tracks, four abreast ...
29
votes
9answers
5k views

How much of a modern day tank can the 14th century replicate?

If a modern Day tank suddenly appears in 14th century Constantinople; in perfect condition, along with all the ammo, fuel, and components needed for it to run. How much of the technology in the tank ...
19
votes
6answers
4k views

How long can I keep my truck oiled after the Apocalypse?

Background The Apocalypse came on Tuesday, and no one was ready. For us soft city folk, survival was mostly a matter of luck. If you fell in with the right group of people with the right skills and ...
7
votes
7answers
1k views

Garish colors for vehicles in desert warfare operations

In a vast desert, several factions vie for dominance. The factions use giant tanks and advanced aircraft. All the factions have a common origin, but are now entrenched in their respective dogmas and ...
8
votes
10answers
2k views

Are supersonic submarine trains necessary in a civilization that spans a galaxy

A galaxy wide civilization with starships. Would a single planet benefit from supersonic submarine trains to go from continent to continent. Supercavitation makes them faster than planes, but would a ...
0
votes
3answers
157 views

Disk Craft vs Other Military Vehicles [closed]

I think I know the answer to this already, but I'd like to get some input and see what other people think. In the story I'm writing, anti-gravity technology has been developed and UFO-like flying ...
-1
votes
1answer
154 views

What kind of terrain would be required to make mechs more viable than tanks in combat? [duplicate]

Are tanks always more viable than mechs in a realistic scenario. Could a war within certain environments lead to construction of mech like machines? Tanks are usually simply faster and more versatile ...
6
votes
4answers
233 views

How can I make a jetpack with supercooling?

So let's say I have a super cooling "battery" basically a brick that cools anything that touches one end of it to ~0k. Now, using handwavium I can thermally isolate it so that it doesn't just cool ...
7
votes
2answers
203 views

Landships on a Snowball Earth?

I've been playing a lot of Deserts of Kharak lately, and I am wondering if landships depicted in game, which are essentially seagoing ships on tracks, would work in a Snowball Earth scenario. By ...
7
votes
10answers
3k views

What control method would make controlling a giant humanoid robot ridiculously easy for a complete novice?

So I have in mind a plot point in mind where my protagonist is elected to pilot a giant humanoid robot with flight capabilities - Kinda like a mobile suit from the Mobile Suit Gundam franchise. To ...
49
votes
11answers
14k views

For how long after an apocalypse would modern cars remain usable?

Imagine a "soft" kind of apocalypse - nothing like Earth being hit by an asteroid. In particular - 90% of human population have just disappeared (no matter why). So there are abandoned cities and ...
-3
votes
1answer
349 views

Making a monowheel which isn't an instant suicide machine [closed]

Source(watch it): https://youtu.be/zhd-gU_KH2o?t=424 Note: The video is Hungarian, so you might not understand it. What is their role in the story? In short, monowheels and dynaspheres are an ...
1
vote
2answers
239 views

How slow could a self driving car be?

The question sounds somewhat paradoxical so I'll explain. In case of ships: recent trends of overcapacity and cut throat competition (and a few years ago: expensive fuel) lead to slow steaming: So I ...
8
votes
8answers
2k views

Why develop AT-AT or AT-TE walkers? [duplicate]

After thinking about the issue of the development of this type of vehicles, I have some doubts about why the decision of this type of transport and not another. Realizing that AT-AT and AT-TE are ...
6
votes
7answers
794 views

What would be the ideal weapon for a light-combat tank?

Only a small number of these tanks are going to be produced, so cost isn't really an issue. They are light and fast, but need to be able to take out another light tank at a long range with a few ...
0
votes
2answers
173 views

What would be a super fuel for methanol fuel dominating setting?

Tech level - comparable to contemporary; no fossil fuels, all fuel has to be produced synthetically, as simplest to produce (and store!!!) was selected methanol. Theoretically quite good - superior ...
3
votes
4answers
104 views

Travelling through Flexible Material?

If a tube was built between two planets that stretched and moved as they did (don't worry about how it connects to the planets) and if a set of rails was on the inside, could a rail based vehicle move ...
7
votes
3answers
2k views

Speed of vehicles built by humanoid giants

Let's imagine a race of Giants, with an average height three times that of a normal human being. Let's also imagine that these Giants are completely identical to humans, proportionately speaking... ...
3
votes
6answers
217 views

Solar Powered Vehicles [closed]

Here is one of my ideas for when my Kepler Bb civilization gets higher level technology. It is Solar Powered Transportation. Now I know what you are probably thinking. You are probably thinking that ...
2
votes
6answers
1k views

What kind of protection system could be used against railguns?

What kind of system using modern technology would be able to counter a railgun projectile on a vehicle (both land and sea)? Would a think slab of angled armour in the shape of "<" work to cover the ...
1
vote
2answers
359 views

Could a photonic engine actually work?

I have a very specific aesthetic in mind for my science-fantasy setting, technology is largely pneumatipunk supplemented with weired phonotic devices;for "reason" there are few electrical devices in ...
4
votes
1answer
269 views

Consequences of Earth-like planet with denser atmosphere

Assumptions - atmospheric pressure is 3 atm, but partial pressure of oxygen is comparable to earth, the rest is mostly nitrogen. Planet is tidally locked and insignificantly heavier. (for simplicity ...