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.

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Nuclear Propulsion System [closed]

Is it plausible to: Have a huge nuclear powered aircraft carrier to be propelled by H2-O2 rocket engine (size adjust) where you generate both reactants from sea water through Electrolysis. What would ...
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8 votes
5 answers
3k views

What's a reasonable timeframe for civilian survivors to learn how to fly a helicopter on their own?

Post-Apocalyptic modern world, a group of civilian survivors about three dozen in number find themselves trapped in a military base. They have no way out except by air. The military base has a dozen ...
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4 votes
3 answers
123 views

Tips on how to make and design fighter jets on your story?

Since I have no money to borrow the names of certain aircrafts, I decided it's better to think of my own. But because I have no experience with drawing or designing complicated machinery, I wanna ask ...
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11 votes
9 answers
4k views

Plausibility of a car running on noble gasses

Is there any science-based way that one could explain cars running not on natural gas (autogas) but rather on noble gasses like Neon, Argon and/or Xenon?
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3 votes
1 answer
88 views

What would realistic racing hovercraft look like in terms of aerodynamics?

This is a follow up to a previous question of mine: How do I keep my futuristic racing hovercraft from becoming airplanes? I'm in planning stages for a futuristic racing game and I'm trying to figure ...
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1 vote
2 answers
124 views

What is the earliest that a time-traveling electric vehicle of current era could be recharged?

Taking modern gas engines into the past is hard because the fuel isn’t refined enough and damages the engines. But electricity has been the same since time began, limited by human capacity to produce ...
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2 votes
2 answers
130 views

A car propelled by a turbine air jet has acceptable efficiency?

So, I know that there are vehicles that use gas turbines as their engines, but they are connected to the wheels. What I'm asking is that if a turbine with reasonable size (small enough to fit in a car ...
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  • 579
4 votes
5 answers
220 views

With modern-day/near-future (i.e. potentially realizable within 20 years) technology, can a nuclear reactor with these characteristics be built?

I'm writing about a nuclear-powered tank. Yes, I know about what the problems associated with it are. No, the people in the setting don't care about radioactive contamination of their environment, or ...
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  • 9,628
2 votes
2 answers
103 views

Why would a military use hybrid jet-propeller planes?

Hybrid jet-propeller planes in real lift where a weird thing that existed in the 40s & 50s, no type of them ever saw combat use or even limited production. In modern day not even much research is ...
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  • 2,864
29 votes
10 answers
5k views

How would one sabotage a horse-drawn carriage to break down a distance later

Is it possible to sabotage a horse-drawn vehicle in such a way that it fails a bit after leaving town? If so, how precise can this delay be and how would it be done?
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-2 votes
1 answer
133 views

space combat for a BTE 4x game game [closed]

l am currently writing a game - I'm making a racing table top game with high tech weapons. What's a weapon that would shoot through people that isn't just a high powered cannon? It doesn't have to be ...
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6 votes
9 answers
775 views

Why would very large trucks regularly be used for logistics?

The very large trucks are mining truck size. They can haul 300 to 100 tonnes of Thing™. They can be outfitted to carry containers. They have a roughly equivalent curb weight to their payload. They can ...
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  • 2,864
6 votes
2 answers
414 views

How big would my airship have to be to fit a modern VLS system

For my factions anti-occult paramilitary force, I decided to give them large, armoured airships for their main form of transport and attack, which do not use gas bags for lift, but rather a magical ...
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5 votes
4 answers
378 views

Vehicles vs work animals in a desert planet

Would animals like camels and horses be more useful/practical in the deep desert than vehicles like dune buggies and sandrails? Basically, I have a planet that's mostly desert surrounded with rock ...
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6 votes
4 answers
290 views

Are low-energy submarines possible?

I'm envisioning submarines just cruising around doing normal things, taking the role of cars, trucks, RVs. I'm trying to estimate how much energy they would need. https://en.wikipedia.org/wiki/...
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1 vote
1 answer
151 views

Viability of a jet modelled after a dragonfly?

Insects in the order Odonata have tow pairs of wings that can be moved independently, their compound eyes grand them full 360° vision and their bodies are elongated. They can flap their wings out of ...
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1 vote
1 answer
104 views

How does one fight in a perpetual hurricane?

Never mind why there's a perpetual hurricane. This is about fighting in it. I'm not sure what the terrain of the Sahara is after getting blasted with hurricane-force winds for 2 million years, but ...
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  • 9,628
12 votes
6 answers
2k views

What would land vehicles designed to operate in a perpetual hurricane look like?

Never mind why there's a perpetual hurricane. This is about the vehicles going into and out of it. Let's say that there's a perpetual hurricane that constantly "hovers" in one location - say,...
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  • 9,628
-2 votes
1 answer
176 views

What would be the best battery someone could make in the late 1400's?

In my champaign a character has the ability to gain knowledge from the far future and has used that knowledge to expand technology and bring on an early industrial revolution. They have built up to a ...
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16 votes
14 answers
5k views

How do I keep my futuristic racing hovercraft from becoming airplanes?

I'm working on a science fiction racing game that is centered around hovercraft that will race through various environments, both natural and man-made. I'm trying to establish a design language for ...
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  • 2,776
0 votes
3 answers
140 views

Could two-wheel tractors be used in place of automobiles?

Two wheel tractors are a smaller type of tractor, which, as the name implies, only have a single axle with two wheels. Is it plausible that these machines could draw passenger cars and be used as the ...
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30 votes
12 answers
6k views

How would a kangaroo-drawn chariot work?

I'm building basically Australian Wakanda, if you'll forgive the pop culture reference. Australian aboriginal culture never made their own wheeled vehicles, but what if they had? The closest thing to ...
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  • 301
2 votes
1 answer
157 views

Optimal tracks/treads for Desert based tank

This questions sounds fairly simple but i just want to be sure. Imagine if you have an army who's main force comprises Tanks and who have to operate mainly in a desert (think the Great Sand Sea area ...
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  • 1,441
12 votes
12 answers
2k views

How should we compensate for lack of traction for vehicles on the moon?

We are building a 3D game world that portrays an advanced lunar town that's as technically accurate as possible, for the purpose of people roleplaying living there and learning about space development....
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4 votes
4 answers
1k views

How plausible is this spacecraft design?

The idea is that the spacecraft would not have a propellant tank on board, but instead would have a huge, spherical propellant tender which the spacecraft could climb around in order to turn. This ...
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6 votes
7 answers
461 views

What would be an effective land based mode of transportation for mermaids?

(this is probably going to be my last mermaid based question for while) unlike their giant counterparts, most mermaids are more humanoid sized and have a life style similar to seals. now some of these ...
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  • 6,033
3 votes
2 answers
127 views

Would redox flow batteries be good for the development of all-electric armored vehicles?

I am in the process of creating a somewhat hard military sci fi setting and was enamored by the idea of all-electric armored vehicles for a future war. For this I decided to used Redox Flow Batteries: ...
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  • 3,186
4 votes
2 answers
375 views

Air vehicles for birds

I want to make a race of sapient birds,they are starting their own industrial revolution. Is it possible for them to develop air vehicles even though they can fly without them??
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49 votes
8 answers
4k views

Travel for fairies

My fairies need to travel very far as they are nomadic, however they can only fly for around five minutes without getting tired. They most likely couldn't tame creatures due to their size and the fact ...
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  • 401
-2 votes
1 answer
106 views

What is the largest a wheeled or tracked vehicle could get? [closed]

What is the largest that we could make a wheeled or tracked vehicle with modern technology?
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8 votes
4 answers
2k views

How feasible and capable is a preindustrial land yacht?

This question is based in the desert world described in this question: Can my civilization be totally isolated by deserts? A pre industrial society is adjacent to deserts and mountains to the East and ...
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  • 31k
20 votes
7 answers
4k views

Lightning-powered vehicles - are they possible? Are they realistically usable for everyday transport?

Note - I have tagged this as hard-science because, apart from feasibility, I'm hoping for some actual numbers that will tell me the capabilities of such vehicles. Background On a planet far away ...
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21 votes
10 answers
9k views

Could 1970s police cars be usable in the modern era?

I'm writing a story set in the mid-2000s USA where a small police agency, for some reason, uses police vehicles from the early 1970s to the early '80s. They have the mechanics, the money, and the ...
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7 votes
5 answers
318 views

Uses for a 1950s-era nuclear-powered land vehicle?

I have heard of the Chrysler TV-8 design, an amphibious armored vehicle powered by an onboard nuclear reactor...basically a nuclear-powered tank. The TV-8 never made it off the drawing board; the ...
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9 votes
9 answers
2k views

Theoretically could a powerful telekinetic person start a vehicle without keys?

The telekinetic in question seems to have fantastic line of sight telekinesis and even great out of sight telekinesis being able to even manage "having a sense of feeling" to said things ...
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1 vote
2 answers
311 views

How would a quadrupedal species design vehicles?

Back in the early times of my story's world, before humans had even arisen on Earth, another planet over 1,000 light years away held two civilizations of dragons. One was the traditional hexapod ...
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  • 809
0 votes
1 answer
113 views

The experience of owning and driving a nuclear fusion powered vehicle

I am using the BattleTech universe for my stories, which has nuclear fusion powered cars. My assumption is that they work similarly to an EV, but with an onboard power plant. So, they'd still be run ...
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12 votes
8 answers
3k views

Are there advantages to using a quad-treaded/split tracked system for a vehicle?

All real military ground vehicles use a continuous caterpillar track or tank tread, but quad-treads/split tracks are often seen in sci-fi, with their futuristic tanks and settings. (Halo scorpion, C&...
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  • 560
5 votes
4 answers
437 views

What would a war robot actually look like? [closed]

As cool as giant robots are and humanoid robots are, they are not the most practical things. I've seen things like human ships crewed by robots, but looking at this, i mean why? Why not make the whole ...
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8 votes
4 answers
196 views

Edible vehicles - feasibility now and in the future

NOTE: This question is inspired by my own answer to a previous question. There is no duplication. See What do stranded astronauts eat in space Scenario On a mining planet where there are vast deserts/...
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2 votes
10 answers
866 views

self contained fuel source

Is it feasible to have a vehicle powered by fuel that the vehicle produces within its self? This vehicle can be a land vehicle or an air vehicle if you want. It must be capable of transporting at ...
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5 votes
4 answers
331 views

Post-Apocalypse EV Effectiveness

Setting: It's after the apocalypse. No zombies or major nuclear fallout, just 99.9% of people were killed for some reason (superplague, whatever). During the final days of society, massive looting and ...
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  • 19.2k
12 votes
2 answers
515 views

Are there *plausible* planetary conditions where jet aircraft just don't have much advantage over propeller-driven aircraft?

I've seen Which is easier to develop: a piston prop engine or a jet engine? and my own Effects of ~10atm pressure on engine design neither of which answers this. Would different atmospheric density, ...
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3 votes
3 answers
435 views

What is the best form of powered vehicular flight within a McKendree habitat?

Background A McKendree cylinder is a spinning space habitat in the style of an O'Neill cylinder (below), but orders of magnitude larger. McKendree habitats are hundreds of kilometres in diameter and ...
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5 votes
2 answers
215 views

Speed of a Spider Tank?

Disregarding all the impracticalities of a legged vehicle, assuming one was created, how fast would it be? I know there are a ton of variables, so I’m just looking for a ballpark estimate for a ...
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4 votes
2 answers
419 views

What might be an effective mode of transportation for Giants?

In my story Giants, humans, and a bunch of other fantasy races live along side each other and i'm curious as to what might be an effective mode of transportation for 10 foot tall Giants with Ancient ...
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  • 6,033
-1 votes
3 answers
331 views

What technologies will make the wheel obsolete in the future? [closed]

It will be a major revolution to see an invention that existed for many thousands of years disappear in the far future. I think that levitating and hovering technologies will make the wheel obsolete ...
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6 votes
4 answers
290 views

How would you design Turn-Signals on a Flying Car?

When designing a flying car intended for congested city routes with slow traffic, should turn signals indicate all possible directions. In most sci-fi, I've seen designs that have no turn-signals or ...
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10 votes
5 answers
4k views

A “time capsule” that can last for trillions of years?

The universe is dying because it has exhausted nearly all of its resources. Humans became the last species in the universe because of their resilience and sheer willpower. And yet, humanity still ...
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5 votes
3 answers
753 views

Could Bronze-Age Nomads Effectively Utilize Chariots for Warfare?

Horses were first domesticated on the steppes around 3500 BC, but the horse would not be ridden directly into battle for at least two more millennia. Instead chariots ruled the battlefields of the ...
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