How Does a Star Destroyer FLY in Atmosphere?
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- Ever wonder how a massive Imperial Class Star Destroyer can fly in atmosphere? How does it survive entering a planets gravity well and flying out? Well we take a deep look at the science (space magic) of the star destroyer.
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Star Destroyer's fly because Tarkin orders them to fly. That's why.
Sort of how in Valkyria Chronicles Bullets pierce tank armour because you order them to pierce the armour?
The Star Destroyer needs an awfully strong anti-gravity system capable of holding millions of tons in the air. For the anti-gravity system to hold so much weight it will probably require more energy than a nuclear power plant!
I agree with you alias
@@Angry.General1461 From what I heard Sienar had to put a tiny sun in every Star Destroyer to get them to move.
This is def the most logical answer I heard so far.
I know I'm coming to this four months late, but I want to address some things:
1. The figure you want is MASS not Weight. it's still in kg's so that's easy to understand.
2. Ships are probably a terrible gauge to estimate by since ships need to be buoyant and ISD's do not.
3. The Forbes article specifically states that it's estimate does not include heavy armor.
4. ISD's are pretty heavily armored, so at a GUESS its probably ten times higher than the estimate given.
5.Inertial Compensators are NOT a type of Anti-gravity. They are a means of allowing All of a ships components and crew to be accelerated at the same rate, rather than experiencing the normal inertia that would crush them flat at high acceleration.
6. The Compensators MIGHT be used to prevent the crew from FEELING high G's if the ship landed, but they wouldn't hold it off the ground.
7. REPULSORLIFT. These ARE anti-gravity and are almost certainly why the ship is "floating" as that is their intended purpose in cannon. (That's most likely what that round thing on the bottom of the ISD was)
8. The Shielding as well as surface area on an ISD Most likely the limiting factor, not the engines, which would set a top atmospheric speed of 975kph as atmospheric drag would be massive. Likewise any higher speed (i.e. breaking the sound barrier) will add significant heat load to the shielding/armor.
9. Because of #6, #7 and #8 and Escape/Orbital VELOCITY is irrelevant. The ISD can float up at a stately 5kph for all that it matters. It clearly doesn't need to reach orbital velocity at ALL to stay "UP", the engines can hold it up without it needing to reach a standard orbit. (Orbits are low energy to maintain, high energy to get to)
10. This one bothers me the most. In the real world, the Shuttle doesn't encounter the same temperatures as the Apollo Command Modules during reentry NOT because of surface area, but because the Shuttle never goes higher than Low Earth Orbit, while the ACM goes to Lunar orbit and back. This is the FIRST time Velocity has been important. Reentry from LEO is 7.8km/s, while Lunar reentry is nearly half again more at ~11km/s.
11. Lastly, and this is important, #10 is irrelevant to everything else. Why? Because an ISD would not be making an unpowered reentry relying on atmospheric drag to slow it down, except under the most Dire of circumstances. An ISD would slow from orbit using it's massive engines and enter the atmosphere at less than the Stated maximum atmospheric speed, ~0.28kps or 975kph.
Doing otherwise would bend the bird and void the warranty.
Thank you for your time, i just had to vent.
Keith Bergsma THANK YOU!! I was desperately scrolling through the comments hoping someone would properly break this down. So much wrong with this video.
As a fellow engineer this by far is the most valuable and relevant of all the blah blah nonsense comments posted here. Thank you sir.
I just read your comment and didnt even watch the video. Saved me a lot of time and seemingly got all the facts straight as well.
Other thing he got wrong was the escape velocity thing. Yes, earth escape velocity is about 11.2 km/s but that doesnt need to be achieved in atmosphere. No amount of heat shielding could keep your craft from vaporizing at 11.2 km/s in earths atmosphere.
No reason an ISD couldnt ascend to space on a sub-orbital trajectory using its low atmospheric acceleration, then using its high space acceleration complete its orbit. Just like how all our modern rockets achieve orbit.
One extremely technical and irrelevant (at least in this scenario) correction to number 1. While mass is measured in kg weight is an acceleration on a weight or a force. As such it is measured in kgm/s^2 or Newtons...once again, this is irrelevant to this, but an interesting factoid.
if you want to know how to land a star destroyer i kindly advise you to follow Anakin Skywalker‘s landing technique for another happy landing
Yea I’m never flying with that dude
'Always on the move'
Step 1: Open all hatches. Extend and flaps and drag fins.
Step 2: Not to worry, we are still flying half a ship.
don’t worry, he’s still flying half the ship
@@GenerationTech that's how we all play in KSP
Wait hold up, the cruise ship really has a mk19 grenade launcher?
I mean otherwise you got a bunch of rich and wealthy people going around dangerous waters. I mean its better than nothing
@Jope Lamp what
Wow! Nice they have to as of modern day piracy which targets large ships with many people.
I was amazed to hear that to but I'm glad given the current international piracy situation.
Time to steal them boysss
I'm so sorry you said something terribly incorrect, the sound at 5:08 is not the coolest sound ever but the second coolest, with the coolest being the Slave 1's Seismic bomb in Attack of The Clones
BWWAAAANNNGGGG
I dunno, both sound pretty nice....
Such a nice scene for sound system demos
Imagine replaying that scene for an hour in your Dolby Home Theatre, oh god such orgasmic sound
I do like the silence and sound of the light speed kamikaze in last Jedi. But slave 1 ftw.
9:20
You seem to have mistaken what "Escape Velocity" is; its the highest speed an object can move and not have a hyperbolic orbit, not how fast an object needs to travel to reach space.
Had to scroll a little for this comment. That was so wrong.
Indeed for a powered craft one merely needs to be able to achieve and sustain a thrust to weight ratio greater than 1 for as long as it takes to get outside the hill sphere. As star wars ships seem to be capable of sustaining thrust near indefinitely somehow any craft powered by that technology capable of producing a thrust even a fraction of a Newton higher than their weight would be capable of escaping the gravity well.
Unfortunately, "Escape velocity" is often used like this when discussing sci fi.
Actually, with those powerful engines, repulsorlifts and (appearant) lack of fuel issues, the ship could render itself at a standstill relative to the motion of the surface and then gently slip into to atmosphere, greatly reducing the stresses and temperatures involved.
This is the first thing I thought while watching this.
The Falcon 9 first stage does this to an extent as the reentry burn significantly reduces the heating it would otherwise experience during reentry.
You can even try this in KSP or orbiter and watch the heating on the vehicle.
It's the same with leaving the planet. Escape velocity is how fast you need to go to orbit your way out. If you have the power, weight reduction, etc. to just keep going up, velocity is irrelevant.
Yup. On top of that, the lower speed limit is when the ISD is in thick atmosphere. It'd increase as the ship got to higher altitudes (and the atmosphere thins, giving less resistance), thereby it could still get to orbit even without going purely vertical. It's similar to why 'Max Q' is not at max velocity on rocket launches in reality.
Plus dont forget that the Hydrospaners help as well.....
5:10 *coolest noise ever*
Slave one's seismic charge: "Am I a joke to you?"
The ISD uses the crews hatred for dolphins to keep her floating
The dark side of the force probebly helps as well. 😅
They let the hate flow through them
huh...and here I thought they just taped lots of buttered toast bread side down on the bottom of the ISD...since buttered toast always lands butter side down the ISD would only be able to get so close to the ground...
They also hate the space whales, they killed thrawn
@@ratbat1072
Heresy! No whale could kill Thrawn! It was Jedi devilry!
3:06 yeah im going to need some sources for that
If it’s an American cruise ship tho
Weapons are prohibited on international cruises
@@emileponcelet3439 yeah the whole vid is BS
@@admiralversio ever hit u that’s it’s probably a joke?
Title: How does a star destroyer fly in atmosphere?
Video: Talk about how cruise ships are made.
Wait...do cruise ships actually have grenade launchers on board? Or am I just missing the joke?
iiElysium x only the American ones
@@kkhagerty6315 So one.
iiElysium x I believe it’s a joke but it would make sense given pirates do attack ships all the time
Yes, cruise ships have f***ing grenade launchers on board. No joke there
They do have unspecified defenses ranging from sonic to water to lethal. They are responsible for the passengers on board.
I'm sure there is a former naval officer who is in charge of security who is waiting for his "Dirty Harry" moment, but if it should go to guns, you'll be happy he is there.
like a brick, thats how it flies.
For a brick, it flew pretty good!
A flying brick on approach.......
@@Mrwednesday84 Beat me to it damn it.
"The ships hung in the sky in much the same way that bricks don't"
so like a space shuttle then?
"If you are watching this, you are Generation Tech". I love that!
I think the answer for all gravity defying action in Star Wars would have to be repulsor lifts. The only real source (though not entirely canonical) for the technical workings of most of these ships are the roleplaying games, in which you have Landspeeders, which can hover up to a few meters above the ground, Airspeeders, which can often reach orbit but aren't capable of maneuvering when out of atmosphere, and then proper Starships which can transition seamlessly between moving in atmosphere and space. Repulsor technology was so common and cheap in StarWars that it was used in everything from elevators to toys to make things float.
Before Disney took over, you used to be able to look up stuff on the Starwars website "Database." Among the technologies section was repulsorlift, and it was given as the (then) canonical explanation for this.
4.44 million kg makes no sense to me. If the Allure of the Seas is 100,000 tons and a ton is a thousand kg and volumetrically the cruise ship is 44.4 times smaller than the star destroyer, the star destroyer would weigh 44,400, 000,000 kg, which is 10,000 times larger than the number you're referencing. If I'm wrong, please correct me.
I quite agree. In the video he claims the Allure is "100 million kg" and then goes to say it weights 44.4x the amount and therefor is "4.44 million kg"... where in the world did that number come from, how could it possibly get smaller?
Using google unit converter, Allure of the Seas weights in at 100,000 tons or 90,718,474 kg. So 44.4 x 90,718,474 kg = 4,027,900,246 kg (The star destroyer's mass should be at). 44,400,000,000 kg is only about 11 times larger than 4,027,900,246 kg not 10,000 times. The Allure of The Seas is made mostly of steel, I know this for fact because I've been on this cruise ship before. Not sure what type of materials the star destroyer is made out of but I expect it to be a lot of Titanium, heat resistance ceramic and carbon fiber to save weight.
I agree the numbers are off. The thing that is throwing me for a loop is that the ISD's mass does not change, its weight does but not the mass. Yet in his discussion he says the ISD goes from having a mass of 4.44 million kg in vacuum and increases it to having a mass of 13.32 million kg in atmosphere. This is simply not possible.
@@ShipbuildingPO Yes, but neither is a star destroyer.
Weights vary from planet to planet lol !
Most cruise ships have a Mk-19 grenade launcher on them?!
How do they keep that information hidden? I never heard of this!
StarSilverInfinity it might not be canon
@@GenerationTech lol
@@GenerationTech lol no pun intended? lmaooo God bless bro.
Its Mark 19...not M.K.
Cruise ship security personnel are very well armed to deal with pirate or terrorist threats. It is something they do not advertise.
9:25 Escape velocity is the speed required for a *non-propelled* object to escape the gravitational influence of a massive body. The starship is constantly propelled, thus escape velocity is irrelevant here. If it has enough thrust to lift off near a planet's surface, then it easily has enough thrust to continue moving away from that planet in space.
Indeed especially when one factor in that star wars ships appear to be powered by something known as magic or close to it as they appear to be capable of producing thrust indefinitely implying a fuel source capable of providing energy indefinitely which can really only mean one thing... magic but heh if you have it then anything with a thrust to weight ratio greater than 1 can always escape.
Why wasn't a military ship used? That would make a little bit more sense, because of armor, generator, and weapons
Cole Kenney suprisingly, the largest ships in the world are civilian rather than military
@@buschacha are civilian ships built to take hits like a military vessel? Nuclear generators? A large passenger ship might be larger than a Navy destroyer but is it more massive? I honestly don't know. But I'm sure someone does.
Essentially a Star Destroyer is a space battleship, I think a world war 2 battleship would be a better fit than the allure of the sea.
Iowa class battleships
I wondered that too so I looked it up and nope the civilian ship is still bigger
Harmony of the Seas: Length (O.A.)- 1187 ft.
Width (Waterline)- 155.6 ft.
Draft- 30.6 ft.
Displacement: 120,000 Metric Tons
Decks: 18
USS Gerald Ford: Length (O.A.)-1106 ft.
Width (Waterline)- 134 ft. (Flight Deck)- 256 ft.
Draft- 39 ft.
Displacement: 100,000 Metric tons
Decks: 25
Cole Kenney civvie ships are massive. The oil tanker Mont weighed almost 300,000 tons. That’s 3 times the weight of the USS Gerald R. Ford, and 6 times the weight of an Iowa class battleship.
Modern warships don’t rely on thick armor, as anti ship missiles would blow through it anyways. Instead they utilize hard and soft-kill methods for defense, so it’s better to keep the armor thin to save on weight and material costs so you can splurge on better tech onboard
Actually I think most Imperial Class Star Destroyers were unable to enter atmosphere specifically because they lacked repulser lifts. At least that's what I remember reading about years ago. The few we see entering atmosphere likely had to be modified quite a bit.
maybe they achieve it kinda like the Orks achieve warp travel in Warhammer 40k, they just believe hard enough
You ever read the Space Wolf books? Marine actually impersonates an Ork and drives on of their trukks. Though, it is arguable that Orky guns only work because the Green Skins want them to.
GET OFF MAH SHIP SPACE MARINE xD
Cuz Orks are made for the WAAAAAAGGHH!
I believe in gundam WAAAAAAGGHH with all my little green heart so great chaos gods give me a Gundammmm for itssss A GGGGGUUUUUNNNNNDDDDAAAMMM ._._. .
@@Deridus what book would this be in? This has intrigued me.
Another theory: it’s sci-fi and no star wars ships follow any known laws of physics, the reason they can fly in atmosphere is because of sci-fi laws of science.
Connor Henderson dickhead
Connor Henderson well I think gravity still works the same they’ve just advanced so far that they can harness its power just like the empire likes to seize all forms of power in the galaxy
lil gee gravity cant be harnessed in real life. It’s a property of matter, there is no non science fiction way of harnessing gravity, it doesnt matter how advanced we are as a civilization.
Connor Henderson Cooper and Murph beg to differ
No, its because of some scifi devices
Me and a couple of ME students were taking about this exact thing one time. We came to the conclusion that a real world destroyer would essentially be an armored blimp. 90 percent of the ship is an helium compartment, all of which is covered by a thin but strong fabric. This fabric is the grey metallic surface of the destroyer and it’s shape is based on the need to accommodate the helium compartment.
That explains why the hanger is on the bottom; keeps the large shifts in mass at the center of the craft and also acts as a counter balance for the bridge.
8:05 I wonder if those two Star Destroyer commanders, exchanged insurance information.
I doubt it, that's what minions are for (ie. the Chief Communication Officer)...
I never understod how other ship didn't fall down due to loss of engine power. Even executor fell down due to only bridge crash
Thumbnail: how do star destroyers land
Video title: how do star destroyers fly in atmosphere
Me: make a choice dammit
Hotel? Trivago
@@jman507gaming4 booo
Sgt.Krakatoa I dunno why I said that
I'm still looking for EARTH in all the Star Wars movies!
Well he did say the venator can land with specialized gear but the ISD is too heavy and the structure isn't meant to handle a landing sequence
There are many pensioners who are great fans of Star Wars, as the Saga begun in 1977. Those people were young and fit in 1977, and have been holding the flame of fandom with great enthusiasm, for 44 years now.
I know many Star Wars fans who are now retired; all of them teetotal, none of them has ever been on an organised cruise.
Thanks for the video.
Imperial fleet vs star Forge please. If you can I will be vary happy.
I'll second that!!!
Yes! That would be an awesome video.
Wait, how big of an Imperial fleet? I mean a Starforge alone is just a factory-megastructure with some defense guns, does it have the defense fleet present at the end of KotOR + continued production during the battle?
The cruisers of this era are only as big as actual frigates (around Nebulons) vs battleship sized ISDs, even if we decide to consider the tech as roughly the same size does matter
No do if the empire had the star forge
Well if fleet of hammerhead cruisers can take it out.
Him: "Check out this cruise ship for resting and relaxation."
Me: Oh okay cool
Him: "It also has a grenade launcher."
just putting this out there, but isnt escape velocity only important with short duration chemical propellant? if an ISD could still move in atmosphere it could just ascend straight up at 1 km/h and eventually escape the gravity well after a very VERY long time, no high escape velocity needed.
Escape velocity is important for ALL kinds of propulsion (not to mention that for any given planet it stays the same), for the simple fact that any - and I really mean any - kind of thruster needs fuel. That said, things work a bit different in space compared to earth. In space there's little reason to measure your fuel based on how far you can get, as per Newton any object in motion will stay in motion until acted upon by a force. Therefore, delta v is used, which stands for your ability to change your velocity. Let's say that you've got 1000 m/s of delta v. Now you can accelerate up to 250 m/s, come to a full stop, accelerate back up to 250 m/s, and stop again, so that you are back at your initial position (all from the initial frame of reference). Thus, if you want a spacecraft to escape earths gravitational field, you'll need a craft that has at least 11000 m/s (or however high earths escape velocity is) of delta v, and we can be pretty sure that an ISD has that much :)
@@ThisIsAccountActual certainly true, when talking about delta v. The ISD shown over Jakku was hovering for extended periods of time and had enough excessive thrust, and fuel to take off into space. im just saying you dont need any specific velocity to escape a planets gravity well, just enough raw power, fuel and time.
@@inokainemis Ah ok, then I misread your original comment.
yeah the number he gave for escape velocity (11.2 km per second) is just the initial velocity needed. So if you made a gun that fired a bullet at 11.2 km/s then that bullet could escape earths gravity without any further propulsion. AFAIK our rockets dont reach any 11 km/s on ascent.
If you can maintain thrust then you can reach orbit or even escape the planets gravity even if youre only ascending at a few kph
Correct--escape velocity is the speed you need to go w/o any additional input of energy. If you fire a cannon at escape velocity, it'll leave the planet; anything less, and it'll fall back to earth. However, if you fire a cannon just short of escape velocity, and then the cannonball has a rocket on it, it can input that extra amount of energy.
Think of it this way--you could walk at escape velocity. If you built a ladder into space, and started climbing, or walking, straight up, you would eventually be far enough away from earth that you could jump free of the gravitational pull. You've got two things going for you there--you're constantly putting forth energy to move away from the planet, and because you're standing on a ladder, gravity can't pull you back. If you were instead in a rocket, and it only had enough power to move you away from the planet at 1mph, but it had enough fuel that it could keep doing that indefinitely, you'd eventually escape the gravity well; you'd never escape earth's gravity, but you'd get far enough away that it wasn't significant enough to do anything substantive
To create Real life Star destroyers just say „I don’t have a fleet of Star destroyers” and hold up an uno reverse card to yourself. Therefore, your words will be reversed and since you said you do not have Star destroyers, you will now have them. Now go ahead and make Ol’Palpy happy
Cool.
Remember, air friction only accounts for a small percentage of the heating of a craft's hull when it enters atmosphere; most of the heat is instead generated by compression. Air simply can't get out of the way fast enough, and is compressed into a smaller volume, causing it to superheat. If a deflector shield could better move it out of the way, or even simply create a buffer vacuum between the superheated air outside of the shields and the hull itself, the hull wouldn't need to deal with nearly as much of the heat stress.
An ISD (or any other space ship) wouldn't actually need to reach escape velocity to leave the planet, either. It would only need to maintain headway for the first 100,000 feet or so, until it was clear of the bulk of the atmosphere, at which point it would be more or less in low orbit and able to kick in it's normal systems. Even without air resistance, one could climb away from the planet until such point that one is sufficiently outside of the gravity well; if you climbed a ladder into space, at half a mile an hour, you would eventually be able to overcome the pull of gravity just by jumping. You'd have to go quite a ways away from the planet for that to work, but powerful engines would greatly reduce that distance.
Hey, great video, love the math! I think you miscalculated things slightly when using the escape velocity (around 10 minutes in). The escape velocity is the velocity you need to reach in order to escape a system's gravity *assuming you don't accelerate more*. You can escape the earth's gravity going well below the escape velocity, as long as you are constantly generating new thrust upwards. So the star destroyer doesn't actually have to reduce earth's gravity as much.
Nerd
Am I the only one who gets dissapointed Everytime I don't hear "welcome back to another episode of generation tech..my name is ALLEN"
No. I also look forward to hearing "Hai Frens" at the beginning of each video.
I'm just wondering what happen to his beanie. Was he afraid he'd get mistaken for Tim Pool? TH-camrs don't all look alike Allen!
...Makes you wonder if the real Allen wasn't kidnapped and impersonated by Russian Dolphins...
why Russian dolphins in particular...no idea
Yes, you are the only one. Alan is a god
Whats wrong with him?
yes indeed the sound of the plasma shells hitting the bubble shield is the best sound ever. and probably one of my most fave scene in that one movie.
I actually always thought that inventing a means to get space craft in and out of the atmosphere without a massive amount of energy and resources would be crucial to our space programs.
And it’s my hope that things like Star Wars will inspire future researchers and engineers to develop similar if not synonymous tech in the future!
I clicked on this video thinking nothing. But absolutely ended up really enjoying this.
Do cruise ships actually have guns?!
Only AKs and other "light" weapons. For security on board or against Pirates
No, Cruisers have Guns, Cruises do not, as they are civilian ships. Cruise ship crews do have armed security teams, however, or they would be pirated to oblivion.
Nothing but a few small arms because any armed ship is only allowed to dock at military ports
I mean don’t we have all guns in one way another?
To defend them against who would say “look at me I’m the captain now”
"Your lack of impulsors do not concern me, Chief engineer. Perhaps you can explain this to the Emperor when he arrives."
This solved the problem.
Hey Generation tech could you make a video of the the best and worsed factions and their equivalent to our world.
Good idea! Or our MBTs or IFVs vs their equivalent?
Would be awesome
I like this... Make it happen!
Sounds like a job for Eckharts Ladder.
Ironfrenzy217 well if you like message him and if he makes it tell me so i could see it to
As RoS showed us again they spend a lot of energy just to combat atmosphere and that removes the shields and weapon power.
The ISD wouldn't need to actually achieve escape velocity to leave the atmosphere any more than a space elevator would. Modern rockets do, because they can't carry enough fuel to push themselves skyward at slower speeds; if they don't make orbit before their fuel runs out, they'll fall back to the ground.
An ISD's fusion reactor doesn't need to worry about running out of juice like that - though hovering in the lower atmosphere of an Earth-like planet is apparently about all the ISD's gravity control, inertial dampening, and repulsorlift systems can handle when running flat-out. True, the ISD would have to either achieve escape velocity at some point or remain in orbit forever, but my understanding was the ship would slowly muscle its way out of the atmosphere, red-lining its engines and gravity manipulation systems until orbit, and wait to shift into higher gears until after it had already gotten into space.
I was thinking similar things. To leave a gravitational pull you don’t actually need to go escape velocity do you? Something moving a constant 1mph will still eventually leave our gravitational pull won’t it? EV is just if no other forces are acting upon it after launch
Pretty much. He completely left out repulsorlift, which is the chief technology nesseary to keep anything afloat in StarWars, from cargo crates, to speeders, to landing platforms in Corusaunt's skylines, to giant kilometer-plus long star ships.
@@jackburke2562 That's correct. But it's not just enough to get yourself off the ground. If you don't have repulsorlift technology, or something equivalent, once you get up there, you need to be able to make orbital speed in order to avoid coming back down when you run out of fuel. Basic Newtonian physics.
@@BlackEpyon Fusion reactors would take a very long time to run out of fuel, so I don't think an ISD would have that problem
@@reaIixx ISDs also have repulsorlift, which USUALLY keeps it up.
Fun fact, on reentry the heat isn't due to friction of the air against the hull, it's due to the rapid compression of the air in front of the ship.
Thinking about it another way, the amount of kinetic energy involved in a large ship moving at speeds multiple times the speed of a bullet has to go somewhere, that energy is transferred into the air which is absorbing the impact, in the form of heat.
8:43 wait you didn’t get invited to join the first order?
Hux likes his dolphins alive.
I get the impression after reading many Starwars novels that ships don't enter a planet's gravity well at orbital velocities simply because they don't need to reach orbital velocities to stay above a planet. In Revenge of the Sith the opening space battle depicts ships at a lower altitude than the I.S.S and yet they're not orbiting the planet. That indicates that ships and the technology depicted in the Starwars universe can isolate themselves from a planetary body's gravitational field. In other words they don't need to do 'de-orbit' burns or even need to hit 17,500mph to get into orbit.
What about aircraft carriers instead of cruise ship
Edit: if these ships are armed with shields to enter a planets atmosphere to protect them , how do ODST drop pods enter atmosphere without getting vaporised even though they aren’t armed with shields
Because the ODSTs are usually dropped from mid to low atmosphere where they would not need to re-enter the atmosphere
The same way modern spaceships enter atmosphere. Heat shields.
Heatshields and ODSTS are typically dropped in low orbit so they have less time to gather heat.
Even if they can I want to know how a soldier survives such fall
@@igorwojtyna2158 a lot of them don't
I think this might have been the geekiest thing Allan has ever done. I know it’s the geekiest video I’ve ever watched.
My partner told me I should go home and rethink my life.
Let's just say that the ships land the same way the ship from Wall E does.
@Avacato In Space Oof
Another happy landing.
@Varangian Guard That's the first thing that came to my mind. :)
Yes, it is a very interesting scene.
I am going to watch it now.
@Generation Tech-when i saw the crashed Destroyer and Xwing on Jakku in the trailer for TFAs and REY riding past it , i fell in love with that shot.
11 minutes when all you needed to say was "perfected anti-gravity technology".
A staple concept of science fiction.
Point to make. Star Destroyers do not need the heat resistance to enter an atmosphere. With the same technology it used to hover over a planet. it can simply make a slow controlled decent to the planet surface. Making references to the shuttle or capsule does not apply. The same applies to the exiting of the ship. Since the ship is basically weightless while hovering. What ever thrust it uses will be enough to leave the plant in the same slow and controlled manner. The Ship would still weightless through the entire process till it leaves the gravity well.
I am very surprised that Forbes used a cruise ship for comparison. I would think that a Ford class aircraft carrier would be a better analog.
The allure weighs more
@@justinbeath5169 You win the dumbest comment today.
justin beath That doesn’t really matter. What does matter is how the ships are built. A cruise ship is built very differently than a warship. Different utilization of space, different material densities, different construction materials, etc.
appleintosh A warship is built with a similar philosophy to an aircraft, no space or weight is wasted. Everything has a function designed to support the ship’s mission. The ship is the absolute minimum size to be able to do its job and survive (possibly) getting hit in combat.
dat581 Yeah, I know that.
Where the sound of artillery rounds off the shield was cool, I submit that the coolest sound in Star Wars is the seismic charges launched out of _Slave I_
"How do star destroyers land?" Upside down?
Your helping catch up on how things work in those universes, thank you
There is an easy answer to this question
Yes
“Welcome to another epishode of generation tech”
do the most powerful and most realistic starfighters in sci fi
Actually a really good question that I don’t think has ever been explained in the series.
COOLEST NOISE
It's actually pretty simple, the graphical artist in charge of rendering it places it within the scene that happens to be on a planet.
The star destroyer can fly in atmosphere for the same reason, there is sound in space battle.
Star destroyers are flying to qasidillas idk how to spell it
@@j_5042 quesadillas? The flat burrito? Is that what you meant?
@@secretbaguette yess..😄😆
@@j_5042 I can sorta see the resemblance...
@@secretbaguette yea they are big cheesy quesadillas
I love it how you place the perfect starwars scenes in the perfect times
Did you ever do a deep dive into the pod racing league? Did it ever get referenced after Episode 1? Are there any characters that used to be pod racers, besides Vader Boi?
10 Fastest Podracers in Star Wars th-cam.com/video/niui57xqqsE/w-d-xo.html
@@GenerationTech NEED THE SOL 3 RESISTANCE VS STAR WARS VIDEOS!
If anyone has read the early canon when the SW Universe was just starting, offhand I remember it was noted near the end of the Clone Wars the Victory Class Star Destroyer was the last capital ship known to be able to enter planetary atmosphere. The Imperial class when it was introduced was not capable. As to when they changed things saying a star destroyer could enter atmosphere, i'm not certain.
Gently.
They fly into the atmosphere gently.
Meow
I used to just assume they used some sort of powerful artificially-contained gravity field that allowed it to UFO around in atmosphere (Myth Busted) or possibly an array of repulsers that interact with the planet’s surface (probably crush that plateau city). I was pretty disappointed by the ‘reality.’
Just as a suggestion, for how the ship enters and exits a planet’s atmosphere: What if the star destroyer’s shields interact with the atmosphere by decreasing the density of the air molecules directly above the ship, giving it a sort of wing-in-ground effect like hydroplanes, which allows it to either float to an extent or grants it extra lift while exiting the atmosphere. (Cool video btw)
P.S. I’m just a freshman art major so please feel free to correct me if anything I said is way off :P
Generation Tech meWOW
@@alexandrudorries3307 Either Alan entirely forgot about repulsorlift (StarWars anti-gravity tech that makes things float), or Disney foolishly cut it out of the new cannon. Inertial compensators, by definition, dampen the effects of INERTIA, not repulse against gravity.
Ok what he's saying about the ship seems real. 3:06 HUH?
You and Metanerds Lore are the only reason I’m still sane
5:09, Definitely one of the coolest sounds ever
It’s called “Movie Magic”
The little green wires.
The ONLY reason modern day space ships heat so much when re-entering is because to orbit you have to be going at massive speeds. If you can hover, then there's no need to enter atmo at high speed.
The way you pronounce things makes my head explode.
Adam Bernstein how’s your head? :(
Also, everything bends matter around itself. For example, a Black hole Makes things think that they are flying straight whilst they actually began an orbit around the Black hole. So, the Star destroyer could be large enough to bend enough matter around it (getting rid of gravity) to keep it above the ground
You know how it does all this? Easy! IT"S FICTION!!!
I love that this is a pro Imperial channel.
Weight is irrelevant when you can bend gravity around you.
Everyone always misunderstands entering the atmosphere. The only reason heat is generated is because of the high speed at which everything we've ever sent into space, enters the atmosphere. Not just the act of entering the atmosphere. So, in reality, any powered spacecraft could move slow enough to eliminate any measurable heat.
He said the engines are perpendicular to Earth's surface, think he meant parallel
It's not friction that causes heat production during atmospheric entry. It's compression.
Duh! The same way Cloud City stays aloft. Next question.
Did Disney cut Repulsorlift out of the new cannon or something? Because he COMPLETELY forgot to mention the key technology involved here.
As soon as gen tech started talking about how heavy it was and asked that question the only answer I had was “Heavy. It’s really freaking heavy.”
How does it survive entering an atmosphere? By slowing down before it enters the atmosphere.. Duh. If a ship enters the atmosphere at 1 kph, there would be no heating.
Ships with anti-gravity would be design to withstand twice the amount of force (not pressure) that the anti-gravity it can generate. It would also be design to withstand twice the force its engines can generate. Since the axis of thrust of the engines is at right angles to the axis of thrust of the anti-gravity, it has to be reinforced in two directions. Which adds to its weight. That's why ships that do not hover on their main engines is a dumb design.
Spaceship do not encounter gravity when the enter atmosphere. Gravity is infinity. They have to deal with gravity when they slow own from orbital speed regardless of whether they are in an atmosphere or not.
Escape velocity is irrelevant when a ship can maintain acceleration indefinitely. A ship can leave atmosphere and a planet at 1 kph provided it can accelerate against gravity the whole time.
If the star destroyer used repulsor tech to hover over Jedha, its force would squash the city. That's the difference between anti-grav and repulsors. Anti-grav pushes directly against gravity. Repulsors push against whatever they encounter first, which in this case is the city.
i was about to comment all of this
Thank you. My god, main engines to keep from crashing. He who controls gravity controls the Universe. On approach to a planet with an atmosphere, everything would be on. Inertia compensation just deals with radical changes in directional velocity like entering hyper space, not keeping you from crashing in a gravity well. With anti gravity you can come to a dead stop in that big ass ship above a planet in low orbit and just slowly descend on your A-Grav to the desired altitude no atmospheric heating. No need for aerodynamics with a ship that uses A-Grav tech and navigation deflectors, as we have seen, most of the ship in Star Wars are not really all that aerodynamic, not even X wings. Maneuvering is accomplished by manipulation of the A-Grav fields, electromagnetic thrust vectoring of main engines, and advanced RCS thrusters.
@@gryphon9507 Agreed. Most writers do not realize just how much of a game changer anti-grav/artificial-grav would be.
@@gryphon9507 AntiGrav maneuvering would explain the non-Newtonian behavior of ships in all the Star Wars flight simulators. Cut thrust and you come to a stop? Makes more sense if you've got a anti-grav stabilization field providing intertial compensation and mass movement stabilization.
How does the space fighter looks like in star wars?
- Like an X-wing or TIE-fighter with crew onboard.
How will it look like in real world, if it should move fast in any directions, with TWR hundreds or thousands of G's?
- A fucking unmanned sphere, with stable center of maas, engines all around it's fuselage and the time of autonomous work in active combat less than half an hour, even if it's delta-V will be hundreds of thousands km/s. And they still will move ridiculois, if their one-engine group one-direction acceleration time will be more than a couple of seconds, cause they'll need to spend more time to change their vector of speed. If they will try to reach near-light speed, than their maneurobility won't be pretty good, even with TWR of 3200G (~ 31 km/s^2) - the time of getting this speed or it's reducing will took a couple of hours. Their max combat speed won't be faster than 200-300 km/s, or they'll need too much time to change the speed vector.
With a super-fast turbolaser mass-drivers, that send a plasma-impulse at near-light speed, and super-computers onboard, calculating billions of billions operations per second - the chanse of surviving is only the maneurobility, devouring delta-V in way of crazy shit. And the rockets onboard must have the same super-engines, something like russian 53T6M anti-missile with launch TWR >100G, but far more advanced. So, the distances of space fight will be not such big, as with capital ships (Up to hundreds of light seconds), but tens of thounsands of kilometers. The closest fights will be at distanced at least hundreds or thousands of kilometers, where you can't even see each other (Like in real world, but eve more furher).
- So, don't even try to explain physics in SW, it's not the right way to spend your time.
5:44 as someone who was in a debate about how resistance bombers wouldn't be able to drop bombs, while simultaneously uprooting all of space scifi, said "that's not how gravity works."
For the record, I don't hold the opinion that fiction should be strictly rooted in reality.
Wow how doesn’t this guy know the difference between perpendicular and parallel. The engines were parallel not perpendicular
The reason the space shuttle or any other earthly spacecraft get hot on reentry is because it is travelling at orbital velocity to stay in orbit. If this speeds drops, it will crash to earth. It uses the atmosphere as a brake on reentry because it does not have fuel to burn to slow down.
An ISD with anti gravity drive/repulsor lift it does not need to travel at orbital velocity to stay in orbit, it can slow right down then just sink into the atmosphere. The same at take off, it does not need to achieve orbital velocity/escape velocity it can just lift off into space at a low speed.
Somalian Pirate: I am the captain now
The reason for so much heat at re entry is the speed of the shuttle. It’s orbits at 17500 miles per hour. A ship that can float over a city doesn’t have to enter the atmosphere very quickly if it doesn’t want to. An ISD probably wouldn’t get much more than warm on re entry.
How would the Death Star land
Ask the storm trooper Gary..he did it. Gary is the best..
Parallel parking
Back up camera
Idk bro I think from seeing it it parks in the upstairs carpark, backwards.
Mostly on Ewoks heads
Gravity control was actually a fairly normal area of study in academia up until the late 1950's when they made breakthroughs and it all went black. Various companies and universities that had Gravity programs include but are not limited to: General Electric, Bell Labs, Curtiss-Wright, LockHeed, Boeing, MIT, Gravity Research Foundation of New Boston, The Institute for Advanced Study at Princeton, the Caltech Radiation Laboratory, the University of North Carolina. During this time other countries with programs include France, Britain, Germany, Canada, and Sweden.
The main idea that was being worked on was the strange effects observed coming out of the Lorentz Force equation at extremely high voltages. The anti-gravity like effects present themselves only once you go beyond 50kV to 100kV. This is hard to do because you need very high K dielectric materials to prevent arching. There are some really interesting books on Amazon that document some of the work that was being done at that time. Electrogravitics is the search term.
Most star Wars lore including all the roll playing games say imperial class star destroyers can't go into atmosphere. The Victory class is the largest that could. R1 was stupid for including the star destroyer in the atmosphere and that moment should be ignored.
In closing ISDs can't go in to atmosphere and it is dumb to think anything that big could.
Anything can fly when it’s FUCKING MAKE BELIEVE!
Dude just enjoy the movie. You know this is fiction right.
Jerry Stewart What do you mean?
🤣
Can't remember the name of the Star Wars book but Admiral Daala launched a Star Destroyer off Coruscant after it had been secretly built and it was mentioned that without fitting extremely powerful repulser lift generators it wouldn't be able to operate in atmosphere.
This is such a bad video. From messing up the math in the mass to talking about friction, which isn’t an issue when you’re just floating there. The only real question is how does it stay in orbit without gravity pulling it down? The video literally could of been less than 10 seconds long, you said it yourself. “We‘re not exactly sure how these things work, but they’re basically able to create a bubble where everything within it was shielded from the effects of gravity.” There we go, and then maybe speculate on what this means and how it works, not add in a bunch of bullshit that truly has no relevance.
A wild Filing cabinet
Sorry for asking 🤷🏻♂️
Little thing - escape velocity - that applies for speed at given distance to escape gravity well... if you sustain lower speed longer to get further away you reach your escape
NO worries Trump Space Command will keep US safe from those aliens Space Force
GO Space Force .......
The ion engines don't just create forward thrust, but create the power required to maintain the gravity dampeners, which is why you are able to see the blue exhaust, but thrust is not generated, and when the ion exhaust is increased forward thrust is also increased, it makes sense and adds plausability.
Love the video, but here's one bit of constructive criticism.
Lowering the weight of an object does not decrease escape velocity. A cesna would have the same escape velocity as a space shuttle. Objects in orbit are still subject to gravity. They are actually falling towards the earth. The reason they seem to float is they are flying tangental to the surface of the earth. Basically orbital objects are traveling so fast they stay in permanent freefall. They can do this indefinitely because there is no friction from the air to slow them down.
It's a bit hard to explain without a visual reference.
From what I remember they never landed before, modern canon screwed this up. The real answer is Victory Class Star Destroyers (~700 meters long) were the largest class that could operate in the atmosphere because they had control surfaces. Imperial class do not have these surfaces therefore are like bricks when operated within thick atmosphere. Shuttles exist for a reason, and the mile long ship should stay in orbit.
The humor of this channel is one of the main reason I subbed!
They cause large atmospheric disturbances as well
Anything that size hovering above a city would create a lot of wind for the folks below