#ramjet engine

[sw5w]

Clegg Holdfast and Mawhonic Start Their Engines

STAR WARS EPISODE I: The Phantom Menace - Deleted Scene: Complete Podrace Grid Sequence 05:42

[f-104starfighter]

Did the soviets just duct tape jet engines onto a biplane? YES THEY DID! This is the I-153 DM, a prototype aircraft used to test the possibility of jet fighters in soviet aviation. It was equipped 2 with gasoline-burning DM2 ramjet engines which increased the top speed by 30 KMH, They were later swapped for the more powerful DM4 engines, which increased the top speed by 50 KMH. The reason the jets added so little to the top speed has to do with the type of engines. Unlike a turbofan, ramjets do not have a compressor. This means that they rely on the speed the aircraft is going to compresses the air, so they are not efficient when an aircraft travels slowly. Biplanes are known for travelling very slowly, so they do not mix very well with ramjets. Even though the aircraft was never put into service, It succeeded in paving the way for early jet research in the Soviet Union.

[usafphantom2]

Aircraft engine types ✈️

✈️Turbo-Shaft: Used in helicopters and some fixed-wing aircraft, it features a compressor, combustion chamber, and turbine. The turbine drives a power shaft via a free (power) turbine, which powers the rotor or propeller through a gearbox, rather than producing direct thrust. Exhaust gases are expelled separately.

✈️Turbo-Prop: Similar to a turbo-shaft, it powers a propeller via a gearbox. Air is compressed, mixed with fuel, and burned in the combustion chamber. The turbine extracts energy to drive the propeller, with some exhaust thrust. It’s efficient for low-speed, short-range flights.

✈️Turbo-Fan: Common in commercial jets, it has a large fan at the front, high- and low-pressure compressors, a combustion chamber, and turbines. The fan accelerates air around the core (bypass air) for thrust, while the core produces additional thrust via exhaust. It’s efficient for high-speed, long-range flights.

✈️Turbo-Jet: An older design, it compresses air, burns fuel in the combustion chamber, and expels exhaust through a nozzle for thrust. It lacks a bypass fan, making it less efficient but capable of high speeds. Used in early jet fighters and some supersonic aircraft.

✈️Ram-Jet: Operates at high speeds (Mach > 1), using forward motion to compress air in the inlet. Fuel is injected and burned in the combustion chamber, and the exhaust is expelled through a nozzle for thrust. It has no moving parts but only works at high speeds.

✈️Scramjet: A supersonic combustion ramjet, designed for hypersonic speeds (Mach > 5). Air enters at supersonic speeds, is compressed, mixed with fuel, and burned in a combustion chamber, with exhaust expelled for thrust. It’s used in experimental hypersonic vehicles.

✈️Rocket: Uses stored propellants (fuel and oxidizer) in a pressure vessel. Propellants are burned in a combustion chamber, and the high-pressure exhaust is expelled through a nozzle for thrust. It operates in space since it doesn’t rely on atmospheric oxygen.

✈️Gas Turbine: Similar to a turbo-shaft, it’s used for power generation or auxiliary power units. Air is compressed, burned with fuel, and the exhaust drives a power turbine, which can power generators or other systems. Bleed valves and discharge ports manage airflow and pressure.

Each engine type is optimized for specific applications, balancing efficiency, speed, and operational environment.

@Airmainengineer via X

[vintageclassiccars]

The aerodynamic 1957 Chevrolet Corvette Super Sport or SS. The first ever purpose-built General Motors racecar has a V-8 engine with Ramjet fuel injection which is backed by a four-speed manual gearbox.

[fishing-lesbian-catgirl]

Anime girls that have hair vents use them like ramjet engines

[thanook]

kaiso first person racing game in the style of speed racer (2008), ramjet engine powered cars going at incomprehensible speeds into a series of non-ecludian, three-dimensional tracks that make good use of the "f1 cars can drive up-side down" factoid, where breaks are a suggestion and grip is joke. give it some bliding lights and raytracing while you are at it. then make it a switch 2 exclusive. bam, the worst game ever made.

[ips-northstar-official]

hello! recently, I've made the decision to (with various mounting augmentations from GMS) mount a combat drill on a Caliban, then strap a Nelson's thermal charge to the drill, and give the whole thing enough ramjets and boosters to send any poor chump in front of or behind the whole affair directly to christ-the-buddha.

the question is, and I ask this for liability issues, does this now count as a manned siege projectile? and what restrictions are placed on the use of one of your lovely frames as a ship-to-ship burrowing cruise missile?

eagerly awaiting your reply, as the creative application of a mechanized force multiplier may be necessary in the near future.

yours sincerely, Experimental Pilot/Construct ARCHIVIST.

Hello ARCHIVIST! You’ve put together quite the use case for a Caliban—while we never anticipated it, this kind of creativity among our end users is something we’re always excited to see!

According to our legal team, if that chassis is maneuverable in space to the point it doesn’t need external engine mounts, it would constitute not a siege missile but rather a boarding craft or bomber, depending on the specifics of the paperwork you need to fill out.

Because of this, their only recommendation to stay in-line with current regulations is to ensure whatever crazy SOB you ask to pilot such a Caliban isn’t forced to do so. As long as they’re a willing pilot, you should legally be in the clear.

We look forward to hearing how it goes!

[barbariankingdom]

Mr René Leduc, the brilliant engineer behind the first ramjet aircraft, once said: "It's 1954 and if I tell you that one day we'll be transporting passengers at 2 000km/h, to be precise in 20 years’ time, what will you think of me? "

[sw5w]

A Pit Droid Clears the Grid

STAR WARS EPISODE I: The Phantom Menace - Deleted Scene: Complete Podrace Grid Sequence 04:48

[petermorwood]

Based on reality...ish.

After seeing this post, @elizabethgoudge wondered:

"Wasn't there a real prototype like the Hydra plane in Captain America?"

TL:DR -Yes, there was. Indeed there were several, though "real" is a bit bit up in the air (or not, considering that none of these things ever flew...)

*****

"Captain America: The First Avenger" based some of its hardware on four or maybe even five Nazi-era prototypes, "real" in the sense of having a nebulous existence as sketches, blueprints, or concept / wind-tunnel models.

The film's design department clearly knew their stuff. They may have used other things instead or as well (there were so MANY), so the following is just my own speculation, based on many years of making many model kits :->

The Hydra mini-sub...

...seems based on a cross between the (real) "Seehund" midget submarine...

...and the design-concept Focke-Wulf Ta 283 ramjet aircraft.

Red Skull's escape plane, though never clearly visible...

...wasn't just based on but WAS a Focke-Wulf Triebflügel ("powered wings" - meaning the ramjet-driven rotor blades around its waist).

This was a proposed tail-sitter VTOL interceptor where taking off straight up might (?) have been possible, but landing straight down and backwards would invite all sorts of unwanted excitement.

It also made a brief background appearance in "Loki".

The Valkyrie flying wing…

…was based on, and hugely upscaled from, the Horten H.XVIII, one of many pie-in-the-sky "Amerikabomber" projects.

Resemblance to a Northrop YB-35 (props) / YB-49 (jets)...

…is coincidence based on form-follows-function, since - and rather importantly - the Northrop planes were built for use by the US Air Force, not the Luftwaffe (though given the way some plotlines went, their use by Hydra is another matter…)

The flying bombs which it carried...

...seem based partly on a Messerschmitt Me 334 project fighter...

...and partly on a Sombold So 344 bomber-destroyer, which had the same detachable-bomb arrangement.

The So 344's explosive nose was meant to be launched into a formation of Allied bombers, after which - despite aerodynamics now wildly out of whack and a bunch of angry escort fighters in hot pursuit - the piloted part would land safely.

Yeah, right...

*****

Despite "what if...?" suggestions on the "History" Channel that one or other of these contraptions could have "won WW2", they didn't even help to lose it less severely.

IMO their probable main purpose was to keep numerous engineers and designers safe(-ish) with pencil and ruler in workshops and at drawing boards, rather than very much not safe with rifle and grenade on some bomb-and-bullet-swept front line.

*****

Besides the midget submarine, there's one other exception to all this based-on-paper stuff, and that's Red Skull's car...

...whose inspiration seems to have been the Mercedes Benz W31 G4 heavy staff car and a Hispano Suiza H6A limousine custom-built in 1923 for the King of Spain.

All of which goes along with my own notion, that starting with a real - or merely "real" - object is a great way to make fantasy objects look, and sound in description, more convincing.

Or, as @dduane says, "The more truth you mix with a lie, the stronger it gets..."

:->

[usafphantom2]

The SR 71 was at least 60 years ahead of its time.

The question was …is the SR 71 a product of its time? (Time frame would be late 1950s to 1966.)

Former U-2 technician Damien Leimback wrote; the following *In my opinion, this man is brilliant.*

He Disagrees with the question that the SR 71 was a product of its time.

I disagree because of the technologies that had to be invented or perfected in order for the plane to work that did not exist before the types (I include the A-12 here) introduction.

Here are some examples……

Using titanium in such massive amounts was unheard of in an aircraft; most of it is sourced from the Soviet Union through shell companies. New fabrication methods and new titanium alloys had to be created to build the plane.

Corrugated panels that expanded without changing shape were used in a novel way, as well as new types of glass for the windscreen and new ways of fusing it to the frame without the use of glue (that would melt under high temps) were used.

The fuel was routed through the leading edges of the wings to keep them cool and also to preheat the fuel for a better burn, novel approaches used for the first time on this plane.

The fuel itself was a custom blend and had a radioactive isotope added to it that allowed the ionization to scatter Radar waves in the high atmosphere. C-50 was used to secure the contract for the CIA. it was also called panther pi%s

Oils and lubricants had to be custom blended for the aircraft in order to function at the high and low temp extremes the plane would encounter.

The David Clark company built a pressure suit for the pilots, as the one the U-2 pilots wore was insufficient. The U-2 pilots later adopted the same suit.

The tires had aluminum mixed with latex in order to withstand the temps that would be encountered in the wheel wells during flight.

The J-58 engine was a hybrid of the turbo jet and ramjet, and MOST EFFICIENT at Mach 3.2, unheard of anywhere before or since.

And this is just a small sampling of the technologies that had to be invented or perfected in order for this plane to work. No one else was capable of flying anything like it in the 1960’s and its performance has yet to be matched today, almost 60 years later. If that's not ahead of its time, I don't know what is.

Posted by Linda Sheffield

@Habubrats71 via X

[stone-cold-groove]

An artist’s rendition of the U.S. Air Force’s Project Pluto, a nuclear-powered ramjet engine cruise missile.

[askoneweirddecepticonfamily]

Imagine waking up, and this is the first thing you see.

Lemme know everyone's reaction

The Decepticons wondered what the hell did they do to wake up to such a thing.

Starscream - What the hell?

Skywarp - Ditto Screamer.

Thundercracker - Do we know that guy?

Sunstorm - He looks like a Shockwave and Soundwave hybrid.

Thrust - When did Shockwave and Soundwave have a sparkling.

Ramjet - Why would anyone have a sparkling with those two?

Dirge - Especially Shockwave!

Octane - Aft ugly son of a bitch.

Astrotrain - No cussing around Nate remember Octane!

Blitzwing - Yeah, listen to Tomas the Tank Engine for once.

Nathan is crying out of fear.

Cindy - I would of blasted him off the planet by now.

[deepspaceboytoy]

For me, I find the CAC design really interesting if only because it’s got 3 engines and I love a heavyweight fighter but also. Do we got a scramjet/ramjet on that fighter possibly?

[karanseraph]

What should Unitrex be like?

There's not much canon on this fictional location other than they built starships there

Whatever I write in a fanfic will not be canon anyway

I still want it to be an interesting fictional location that I can describe within a work in internally consistent ways.

It's known as City of the Stars. Famously the place of origin for interstellar travel, at least as far as Cybertronians of the time know. That's canon.

Headcanon applied to this fic: Unitrex is a bastion (star) fort surviving from some Age of Origins/Warring states type period, but where Quintessons may have embedded themselves and so Cybertronians had to fight to take it back in the Age of Wrath. So, it likely has some preserved historic features as well as new construction in some differing style.

In this fan-continuity for a fic it's also presently (in a post-wrath Golden Age/Cusp of Expansion Era a location where at least one Titan is being constructed.

Also, in fanfic, there's a particular sparkfield nearby which various witnesses have reported substrate is being removed, presumably for inclusion inside the Titan(s). To some this is sacrilege, or at least politically incorrect given that sparkfields are a gift from god/public good.

So, there is a current culture of protest and debate surrounding the Titan project.

But Unitrex is also just a city-state in general. It must have some culture.

Like, it's the place where ships are made, but not the main spaceport for the planet, which is currently atop the Hydrax Plateau (which probably makes sense for its more equatorial latitude and ability for ships to ditch into the Sea of Rust and miss destroying urban settlements in an emergency. If you went down or had launch failure in Unitrex (in this continuity) there's some chance of missing the Sea and splattering into Tagan Heights, which sounds painful.)

It's not necessarily where pilots hang out is what I'm saying. It's got a population dense with construction workers and engineers.

And they probably want entertainment, because as much as they love their construction efforts that's probably some heavy labor. It's probably stressful dealing with working on what is essentially a government contract. All these change orders and reports!

So, maybe City of the Stars also has like rockstars and idols. We established that Rosanna had been living in Iacon (some ways west) but in real life different cities each have their own scene, right? Unitrex can have stars even if Iacon or Vos also do. It probably just doesn't involve as much Shock-Pop, pole-dancing, or Jazz, or open mic poetry that other city-states are known for.

But guitar-condor Laserbeak flies with Ramjet's team in Untrex. So, probably there's some type of Rock/Metal scene.

Also, visually, and for inspiration, like a space robot Seoul + Amsterdam (the Netherlands has a lot of bastion forts). In terms of Geography, more resembling Seoul with Unitrex's position between a fortified cliff-face at the Rust Sea border at the south and the rise of Tagan Heights north, with one major river or canal passing through. But in terms of generally being a major city with its own music scene and nightlife surely both these cities qualify. Colorful buildings. Colorful lights at night. Historic structures that are more rectilinear plus new public structures that are quite abstract and curvilinear.

Do we suppose Loudpedal lives here?

Mixmaster is among those spotted nearby so there's possibly circuit altering neurotech (CANT) available.

[ilearnedthistodaysblog]

#1207 Do fish sleep?

Do fish sleep? All fish sleep, but they have different ways of doing it. Almost all complex organisms, with a few exceptions, need to sleep, although they all have different sleep requirements and methods. Ants microsleep for a few minutes at a time, many times a day, while dolphins put one side of their brain to sleep at a time. Dolphins don’t breathe unconsciously, as we do, and if they lose consciousness to sleep, they would drown. Nobody really knows why we need to sleep. However, as it is ubiquitous across nearly all lifeforms, and as we can see what happens when lifeforms are deprived of sleep, we can tell that it is vital. The exact reasons are unknown, but it does clean out the brain and allows memories to be laid down, among other things. So, how do fish sleep? We sleep by closing our eyes, lying down, and shutting down the neocortex part of our brain. The neocortex is responsible for many things, but some of them are language processing, social and emotional processing, and memory. Shutting this down gives some weight to the theory that all of these things are stored by the neocortex during sleep. Well, fish don’t have eyelids, so they can’t close their eyes, and they don’t have a neocortex to shut down. They also don’t have a safe warm bed to lie down in. Fish have to cope with ocean currents, the fact that things generally sink in water, and predators. Some fish also have to cope with the fact that they need to keep moving to breathe. The majority of fish sleep by slowing down their metabolisms in the same way that we do. Their heart rate goes down and their breathing slows down as well. They become motionless and a lot of them just float. Smaller fish will usually dig a trench at the bottom of the water and hide there, sleep among a lot of other fish, or hide under leaves or in caves. Most of the research done on sleeping in fish has been carried out in aquariums, which don’t offer all of the same conditions that fish would be faced with in the wild. There are no strong currents for one, and all of the fish have been selected so they don’t eat each other. Fish have different sleep requirements as well. Some sleep on and off throughout the day and some sleep once it gets dark. There are several nocturnal fish that have evolved to eat sleeping fish and a lot of fish vary their sleep patterns or positions to avoid them. Sharks are an interesting exception to this. Some sharks do sleep and some only sleep with one side of their brain at a time. Sharks have three different ways of breathing and it varies by species. Some sharks are buccal pumpers, but they are a minority. That means they use their cheek muscles to pull water in through their mouths and force it out through their gills. The oxygen in the water gets absorbed by the gills and the sharks can breathe. Because they are forcing the water through themselves, they can breathe when they are stationary. Examples of buccal pumping sharks are nurse sharks and leopard sharks. The second type of shark are obligate ram ventilators. In the same way as a ramjet engine (although it forces air and not water), they ram water over their gills by using forward momentum. Some examples of obligate ram ventilator sharks are whale sharks, great white sharks, hammerhead sharks, and mako sharks. Because the only way the oxygen reaches their gills is through the shark’s forward momentum, they have to constantly keep moving or they suffocate. The last type of sark can switch between the different breathing methods. Reef sharks can do this. When it comes to sleeping, buccal pumping sharks can sleep anywhere in the same way as fish do. They float in the water and continue to breathe while they sleep. However, obligate ram ventilators can’t stop and sleep because they would suffocate. They have to keep moving, which means they only sleep with one side of their brain at a time. Researchers have discovered that some sharks can completely sleep if they position themselves against a strong ocean current. If they can float with their nose pointing into a strong current, the water will be forced over their gills and they will be able to sleep. However, they have to stay alert in case the current stops. And this is what I learned today. More articles: - #405 Do ants need to sleep? - #149 Why do cats sleep for so long? - #260 How do some animals sleep standing up? - #743 Is a whale shark a whale or a shark? - #620 Why do Greenland sharks live so long? Sources https://www.reefcentral.com/forums/showthread.php?t=2610032 https://oceanservice.noaa.gov/facts/fish-sleep.html https://www.aqueon.com/articles/fish-sleeping-habits https://en.wikipedia.org/wiki/Neocortex https://www.reddit.com/r/Aquariums/comments/tg2xez/so_is_this_how_fish_sleep_or_rest_just_curious/ https://www.britannica.com/story/do-sharks-sleep https://saveourseas.com/worldofsharks/do-sharks-sleep Photo by crisdip: https://www.pexels.com/photo/close-up-photo-of-clownfish-128756/ Read the full article