#aerofoils

[aviationschool]

Upwash & Downwash: Newton's Third Law at Work in Aerofoils. Sure, here's a concise tag for social media about upwash and downwash on aerofoils: https://www.youtube.com/shorts/JIT_QARFY-0 "Upwash & Downwash: How Newton's Third Law Lifts Wings 🛫 #Aerofoils #Newton#Aerodynamics

#avelflightschool #Aerofoils #Newton #Aerodynamics #aviation

[heyclickadee]

Listen, I’m not saying Tech could pilot half a cable car in free-fall, but I am saying that he did manage to pilot a non-operational escape pod to a very narrow safe landing zone and skid it to a stop, so, honestly, I wouldn’t put it past him.

#I’m also not saying he used a detonator to blast a panel off the car #so he could use the panel as a makeshift aerofoil #and steer into Saw’s ship or something #or a cave #I’m just saying it’s one of the many #‘plausible within the rules of the Star Wars universe”’ #ways he probably made it

[intertexts-moving]

ITS SO HARD TO FIND GOOD MACKEREL PICTURES IN THIS ECONOMY >:[ these do not do them justice theyre sooooo pretty like... iridescent blue and sometimes a little green.... pretty patterns on them... theyve got fuckin. SPIKEY tails and a sharp spine on their dorsal fin.... epic fish forever 😌

OHH MY GODDD THEYRESO PRETTY... OHH I DIDNT KNOW THEY WERE THAT PRETTY!!!!!!!!! oh i am SO excited holy shit. i know what im gonna spend my whole studio class tomorrow doing. ohh my godd.. shaped. shaped!!!!!!!!!!!!! ok wait wait this is. entirely off topic. but theyre like...

aerofoil... shaped to minimize drag...all things delicately interconnected real?

#THE PATTERN IS SO COOL. HWOAG. #also sorry i feel like this is such a nonsequitur to pull from the pottery fish discussion. but. #at my dads old engineering dept part of the department logo was aerofoil w/ cool windy lines parting around it so that shape is burned into #my brain forever. <3 onlything i know abt aerospace or mechanical engineering <3333 #TY btw. heehehehe >:3 #mac tag! 🦈

[pubcapscott]

Ridley Releases New Carbon Arena FAST, Aluminum Arena A

As we start to head into the next Olympic cycle, we are going to start to see more brands launching new track bikes to meet the requirements needed for bikes to be used in Paris next year. For Ridley, that means the new Arena FAST, but also includes the Arena A for the rest of us too. The Arena FAST began development along with the Dean FAST time trial bike, as they share a similar design…

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#aerofoil #aluminum #Arena #carbon #Dean #Deda #F-Tubing #fast #focus #Forza #Italia #Kamm tail #NACA #Olympic #Paris #Ridley #S-tubing #time trial #time trial bike #Toray #Track #UCI #Vittoria #wheels #World Cup

[dcp7yh3rcpq]

Suruba sem capa em Copa depois da praia Hornstown Lily Sissyfication Facial for Petite Teen with Small Tits Kanako queriendo mostrar las tetotas Kenneth Slayer plays with vacuum cleaner while masturbating Fudendo CUZAO Hotel Ibis Brunette MILF Sofie Marie Dildo Fucks Her Pink Pussy Solo Fodendo a casada safada steffff slowe Dri sexy video collection twitter

#geomorphologically #brodyagi #panicled #epencephalons #aerofoil #chacmas #pectinite #subaccount #daggled #Kiho #fern-owl #Romano-gallic #labrosaurid #quasi-respected #councillors #gruffly #seor #alterable #denigrates #envaye

[ltwilliammowett]

The Theory of Sailing

For a start, the wind does not simply push a vessel along, unless it is sailing immediately " before the wind". Most of the time a sail acts as an aerofoil, generating power. This is then transferred through the spars to the hull. The shape of the vessel and the resistance of the water along its hull and against its keel all contribute to turning this power into forward motion. Inevitably some of this motion is wasted because the vessel also travels sideways (known as making leeway), or through its heeling over. However, most of the power is used to move the warship forward, through the water.

Points of sail (x)

Regardless of the size or type of sailing ship, the basic principles are the same. Air (or rather wind) flows over the curved surface of the sail on the windward side (the side from which the wind is blowing), creating lift by building up an area of high air pressure. Air flowing over the leeward side (the side to which the wind is blowing) creates an area of low pressure. This was complicated slightly on a warship when several sails were used, as the wind passing between them increased the lift on the leeward side of the sail. This makes sailing ships with several sails generate more power per sail than than those with a single sail. This difference in pressure is what creates the lift that drives the ship forward.

Just like an aircraft wing, the sail of a sailing ship can reach a stalling position, wehre the air doesn't strike the sail at an angle which will generate any lift at all. This means that the angle of attack between wind and sail id very important. The most efficient angle of attack is about 22° from the direction of the wind. Sailors therefore take a lot of care to make sure the sails are angled to make the most of the wind. In the days of sail, this was almost second nature to sailors, who knew how to coax the best possible speed out of their ships. Of course, the wind doesn't always blow from the right direction, so sailors have to adjust their sails accordingly. This means that when the wind is blowing from behind the direction, of sailing, the business of sailing is fairly straightforward. If it blows towards the ship it makes it much harder to sail in the right direction. If the wind is coming from somewhere close to dead ahead, then the boat cannot sail into the wind at all.

The closest a well -rigged sailing warship could sail into the wind was about 35-45°. In other words, it could not sial directly into the face of the wind, or on an arc to either side to it. Even beyond this arc, forward progress would be tediously slow, but it might be the only way a ship could head in the direction it wanted. If the intended course lay in the direction the wind was coming from, the the ship would have to zig-zag, moving along one arc as close to the wind as it could, the turn across the wind (a business known as tacking), so that the wind would hit the sails from the other side, still as close to the wind as the captain could manage. This was (and still is) known as sailing close hauled, with the sails pulled as tightly as they can be, and angled round to catch the wind. As well as being slow, sailing close hauled also meant more power than usual was wasted in sideways movement - making leeway.

A final factor in the age of sail was the loss of power through friction of the water and air. If a crew had not cleaned the ship's hull, then weeds, barnacles and other marine growth all worked to increase friction, and thereby reduce the amount of power whoch was converted into forward motion. A captain couldn't do anything abotu the natural resistance of wind and water, although ship designers could. Ships with low sleek hulls offered less resistance to the wind, and so were faster than larger vessels. Similarly, great care was taken to design warship hulls that were streamlined, and therefore offered the least possible amount of resistance. While all this sounds complicated, sailing a sailing man o'war was a matter of practice. Most ship captians during the age of sail knew the sailing qualities of their own ships, and could calculate the forces involved between wind and sail. The very best captains were also able to fine tune things, so their ships made the best possible use of the wind to propel their ship faster than those of the enemy.

#naval history #theory of sailing #how a ship moves #age of sail

[andmaybegayer]

had the same very interesting experience twice today which was seeing a good explanation of a thing I mostly understand already that is aimed at an absolute beginner, bringing them up to a high level of conceptual understanding in one long continuous delivery. Those two things are 1) this Matt Parker video on Quadrature Amplitude Modulation and 2) This Bartosz Ciechanowski article on how aerofoils work.

These both start off at a very fundamental level - "Do you know how a sine wave looks", and "You know about wind" - and build up to a fairly good explanation of the thing they want to talk about.

Ciechanowski's article is astoundingly detailed, beginning with ideas of what air movement means, detouring through the fundamental origins of air pressure and a very convincing series of arguments about how air pressure is realized as a force applied to an object, into fluid flow and viscosity, and finally using all this to describe the function of an aerofoil.

Parker's video is not as thorough, but still starts off from a more conventional time domain representation of waves before switching fairly smoothly into the more engineering-y representation as a point in complex space (albeit without calling it that) to show how QAM encodings are distributed for efficiency.

Now my question is basically, how good are these. I will always fill in the bits I know when I read these, so I might miss holes. I feel like Parker is definitely the one that could lose you more easily, it's a short video so it maybe doesn't cleanly explain how a sine wave maps onto an XY plot, although the visualizations probably help you get it even if you don't get it at first. Ciechanowski's article is very, very detailed, full of interactive simulations and widgets to help you get everything, building from almost nothing, but I will be honest I skipped a lot of it when it was clear I got the point, I've already got the link between brownian motion and pressure down, you don't have to reiterate.

If you aren't familiar with either of these I'd be interested to hear your opinion.

#bartozs ciechanowski #matt parker #mathematics #engineering #physics #Youtube

[knaveofdoodles]

Day 7: Weapon

A few of the gnoll-specific weapons. Being Grakui- a gnoll "greatbow"; Hakka- a short handled waraxe with an upper grip; an Akklata, "Hunter's Wing" a bladed throwing aerofoil/machete

#gnolls #gnollvember2023

[frenchcurious]

Bentley 3 ½ Derby Aerofoil Coupé 1935 ex-Maharaja of Jodhpur. - source Fiskens.

#bentley #maharaja of jodhpur

[visualratatosk]

Wing study II, 9

«Any shape that introduces curvature into the flowfield can generate lift. Aerofoils work because the flow follows the local surface curvature on the upper and lower surfaces. It is not necessary to consider frictional forces to explain lift; it is only due to the action of friction that streamlines take up the pattern we would intuitively expect, so strictly speaking lift would not be possible without friction.» [ Holger Babinsky ]

#AI #generative art #ai art #Midjourney #neurophotography #promptography #collective memories #vintage style #retro style #neuroart #generative Kunst #KI-Kunst #kollektive Erinnerungen #Vintage-Stil #arte generativo #arte de IA #生成的 #生成艺术 #人工智能艺术 #集体 #birds #oiseaux #Vögel #pássaros #鳥類 #wings #wing #feather

[f1mike28]

C63 AMG Coupé Black Series "The Dark Side Of Mercedes-AMG".

The C63 AMG Black Series includes an upgraded version of the legendary M156 6.2L n/a V8 engine rated by 517hp and 620Nm of torque. A black diffuser insert from the SLS AMG GT3, chromed twin tailpipes, AMG sports suspension with AMG rear axle differential lock, three-stage ESP, two AMG sports bucket seats, black DINAMICA microfibre upholstery on the centre panels of the seats and doors, omission of the rear bench seat (single rear seats available as option).

AMG performance steering wheel in nappa leather/DINAMICA microfibre, steering wheel rim featuring flattened top and bottom sections has aluminium shift paddles for manual gear changes, red seat belts and red contrasting top stitching on the steering wheel, on the seats, door centre panels, armrests on the doors, the centre console and on the shift lever gaiter, three autonomous round dials has a three-dimensional TFT colour display.

The AMG Track Package includes 255/35 R 19 front and 285/30 R 19 rear sports tyres from Dunlop, active rear-axle transmission cooling with radiator in the rear apron.

The AMG Aerodynamics package includes carbon fibre flics on front apron, carbon-fibre functionally tuned front splitter, fixed carbon-fibre rear aerofoil with an adjustable blade.

Mercedes-AMG One man, one engine Handcrafted by Michael Kübler @f1mike28 in Germany Affalterbach. Driving Performance is our Passion! Mercedes-AMG the Performance and Sports Car Brand from Mercedes-Benz. Mercedes-AMG Handcrafted by Racers.

The Black Series projects from Mercedes-AMG are limited, unique and very rare. Keep your eyes open because you will see them only for a few seconds.

#amg #cclass #c63 #c63amg #c63blackseries #c63amgblackseries #blackseries #mercedesamg #mercedes #mercedesbenz #affalterbach #onemanoneengine

[retromania4ever]

Chris Amon 🇳🇿 Ferrari 312, in Thursday practice. Aerofoil wings were banned after the session.

#classic #car #formula1

[fascinationex]

brainstorm gets stuck in his dumb ceiling harness and perceptor has to untangle him and possibly take him to the medbay for for hurting himself trying to get himself down hsjdhs

Thank you for your prompt! A tiny fic:

-----

Brainstorm's left wing and remaining dignity were both hanging by a thread. The mech himself, unfortunately, was hanging by rather more than a thread: he was stuck in his own harness, dangling from the roof of his workshop.

"It's a bit sexy, isn't it?" He stroked an absent beard over the flat plane of his faceplate.

Perceptor stood on the work bench beneath him, bracing up the wing with his shoulder as he tried to disentangle a strap from its sparking insides.

Being able to see what he was doing would have enabled him to enjoy the power of a knife, but since he couldn't, and the wing was already sparking at its joint, he had to shove his fingers into the mysterious shadows inside Brainstorm's shoulder armour and attempt a manual disentangling.

His hands were wet with leaking fuel from where the strap had cut into Brainstorm's fuel supply. He had a very narrow aerofoil and it wasn't going well.

"Sexy?" Perceptor repeated dubiously. Getting stuck in his own ridiculous harness? The one he built so he could dangle from the roof to, somehow, impress Perceptor? "Brainstorm, it's not even smart."

The wing tensed under his fingers, creaking ominously as it tried to sag expressively. Brainstorm's sulking actually deepened his access, and he found a strap of distinctly non-biological cabling at last. From there, he began to follow it with his fingers.

"Ha! I should have known you'd need something to be smart to be sexy. We're so alike." Were they? Were they? "But," he went on, "it's pretty smart." He winced as Perceptor shoved, trying to stopper the fuel leak even as he sought out the rogue straps of the harness. This did not stop him talking. "Who else do you know who can engineer atrocities upside down?"

"I'd be impressed if you managed to do it upside down using a stable antigravity field," Perceptor offered, half-sparked and through his teeth, because it seemed marginally better than telling him nobody except you thinks that's an achievement, actually.

"Ohh. What a thought. Noted," said Brainstorm.

"It wasn't a request." If Perceptor's voice was terse and clipped, could anyone really blame him? Really?

He stretched up on his toes for a moment, heaving his shoulder beneath Brainstorm's wing and shifting it for just long enough to get his fingers around that one strap. When he relaxed back onto his heels, the sudden weight of Brainstorm's wing compressed his hand.

"Ouch," said Brainstorm, but not really as though it hurt. "I'm surprised," he added, "I thought you'd be all over me! Dangling from the ceiling, entirely at your mercy."

The frustrating thing was that he wasn't wrong. Perceptor didn't mind the idea of Brainstorm getting stuck in his ridiculous harness, exactly. He could have paced in slow, deliberate circles beneath his conjunx's helpless frame, listening to him whine to be set free.

That had a certain appeal.

But he wasn't just stuck. He hadn't called Perceptor when he was just stuck. He'd panicked, tried to unstick himself, and twisted himself up until something had cracked and there was fuel slowly drooling from his wing. He'd only sent a comm when his wires had started throwing sparks inches from an open fuel source.

And nobody liked to show up to find their conjunx bleeding onto the floor, one wrong move from accidental self-immolation.

Perceptor didn't dignify this comment with an answer. He pulled on his strap instead, trying to find where it had any give. It tightened the rest of the cables around Brainstorm and set him gently to spinning, somehow, which he did without much grace.

Perceptor ducked to avoid getting a wing to the face. The wing he'd been bracing up creaked and bent, sagging down with the draw of gravity. Brainstorm didn't wail and complain about the pain. Instead his optics whited out in complete silence, which Perceptor thought might have been worse.

"I'm going to cut it," he decided.

"Bold. Strategic. Incisive. Good idea." Brainstorm spun another slow rotation on the spot, helpless before the forces of physics. The forces of physics were probably due a win over Brainstorm at this point, anyway, really. He defied them often enough under regular circumstances.

"I might clip something," he warned. He pulled his hand out. It was slippery with energon, and the stain glowed under the strong laboratory lighting.

"Wow, okay, no, bad idea. Terrible idea. No. No?"

Perceptor ignored this and jumped down from the work bench. He came back a moment later carrying the the wire cutters.

"Percy," Brainstorm squirmed, which did not make it any easier to find the right cable to snip by feel alone. "Hey, Percy, come on."

"Don't flap."

Brainstorm, apparently sensing the futility of his wriggling, instead went very still. Perceptor dug his slippery fingers back into the shadows of the wing joint, seeking out the loop of cabling.

He knew he'd found the right one, because tugging it set Brainstorm to slow spinning again.

"I think I'm getting seasick."

"I'll just be a moment." He couldn't see, but he could feel his way along the cable. He clamped the wire cutters and pressed down slowly, waiting for Brainstorm to tell him it hurt. He did not, so Perceptor took that as encouragement. He braced Brainstorm's sagging wing up with his own shoulder again and cut the cable.

Snip.

There was a whistle as the strap finally came free, and Brainstorm made a tank-churning noise of pain as the broken ends dragged through his injured wing where they'd cut in.

"Wait," he said, in such a tone that Perceptor looked up in alarm, but it was already too late: the other harness cables, suddenly given all of his weight and without their fellow to help, could not hold up.

Snap, snap, snap, went the harness, and Brainstorm thrashed his good wing, trying to twist to hold onto it, but—there was a creak—he swung and spun—snap!—and then tumbled down from the ceiling to crash onto Perceptor, who was right below.

They fell in a crash and clatter of metal limbs onto the workbench, where one of Perceptor's flailing feet knocked the miniature model of his own alt mode off the bench to thunk onto the floor. It lay there on its side and was quickly forgotten.

Then, silence.

For a few moments there was no sound but the settling noises of living metal and the dull whir of hard-working processors. Perceptor could keenly feel where Brainstorm's canopy had dented his flatter chestplate. He let his head tip back to rest upon the bench: thump.

He stared up at the tangled mess that had been Brainstorm's harness. The cables and straps swayed gently above, looking wholly innocuous. One of them was shiny with fuel.

"...Bracing!" said Brainstorm lightly. He clamped his fingers over the leak in his wing. He was much better at finding it than Perceptor had been, given that he could actually feel it. He tipped his head so he too could see the carcass of his harness. "I'm gonna have to fix all that."

Something crackled and his wing joint sparked, a bright little fleck of golden light near Perceptor's face.

"You mean you're going to need to dismantle it."

"...Right! Yes. That. I'll need to dismantle it. Especially since," he added, shooting a sly look at Perceptor, "I have to make the antigravity field."

Perceptor did not take the bait. "Was seeing First Aid somewhere in this game plan?"

"Sure," said Brainstorm, sounding distinctly like someone who wasn't listening to a word Perceptor had said. "But now that I'm free, you can tell the truth... It was a bit sexy, wasn't it?"

If he hadn't been injured, Perceptor might have shoved him off the workbench. "No."

#robot-thighs #ask #prompt #simpatico #my fic #tf fic

[eridanidreams]

WIP Wednesday

Tagging: @bearlytolerant, @silurisanguine, @aro-pancake, @fangbangerghoul, @atonalginger, @aislingdmdt, @fshenkoescape, @ninjaofnaps, @lisa-and-shadow, @a-cosmic-elf, @thatsgoodsquishy0, @hockeydemon42, @fomagranfalloon, @violenceandviolets, and @artemis-crimson

Since I posted an actual chapter for stars today, the WIP is from my other ongoing work, The Odysseus Gambit.

“Where the hell did all these come from?” Jensen swatted away another with a snarl. He’d been getting steadily more irritated over the past hour; she wasn’t all that thrilled about the situation, either.

“Wetlands,” she growled. “Mosquitoes. Pretty simple math.”

“Thanks, Captain Obvious,” he muttered, quietly enough that she decided just to ignore it.

“I’ve got insect repellent in my pack,” she said instead, ruthlessly controlling her annoyance. “Let me find us a place for a break—it’s about lunch time anyway—and I’ll crack it out.” She took a few more steps, and her foot plunged through the ground cover, right into an animal burrow. This one was bad enough to twist her entire leg—perfect joints didn’t have the flex of human tendons—and the connection points at her hip ached where unforgiving metal met all-too-imperfect flesh. Now it was her turn to mutter sotto voce imprecations. “Brilliant idea, Sloane. Let’s just go tramping through the biggest haunted forest in the fucking world, it’ll be fun. Radiation? Dangerous wildlife? No problem. We’ll just get eaten by the mutant mosquitoes. Come out at Pripyat as bionic mansquitoes, they’ll make a movie about us.” She yanked her foot out and stomped on. “A bad movie.”

Behind her, Jensen let out a sigh; when he finally spoke up, his tone was a good deal more civil. “Don’t beat yourself up over it,” he advised. “We didn’t have any better options. And—pretty sure you did some of the same reading I did, and none of this is in the official literature.” His voice turned wry. “Or the unofficial literature.”

Before Sloane could make sense of the fact that Jensen had actually said something to her that wasn’t either coldly professional or a barely-concealed insult, the trees thinned to reveal a small clearing up ahead. It was just what she’d been looking for. She was just about to say something when a loud crack echoed through the forest. She and Jensen froze in their tracks; the trees ahead exploded into movement. She relaxed fractionally—that, at least, was something explicable; just a flock of birds, startled by the sound.

The birds emerged into the sunlight, and—“What the hell?” Jensen sounded half-awed, half-disbelieving. She couldn’t fault him for either. They were about the size of a crow, but no crow sported feathers of a dark, metallic blue. Or feathered aerofoils on the legs. Or a whippy, frondlike tail and featherless head covered in a soft, jeweled hide that owed more to a lizard than a bird.

Sloane stared into the sky long after they dwindled into tiny sparkling points and disappeared, her momentary thrill of delight quickly soured by the knowledge that those birds—those creatures—were the product of no natural process she was aware of. Not even the bright spring sunlight could dispel the chill that settled over her, and it was a long several minutes before she ventured out into the meadow ahead.

She pulled out a couple sealed repellent wipes and tossed one to Jensen, then pulled her Tyvek suit down to her waist. “It’s safe enough,” she answered Jensen’s raised eyebrow. “Levels are low and there’s not a lot of dust.” She turned her back to Jensen, pulled her t-shirt off, and methodically applied the repellent to face, neck and chest. Behind her, she heard the sounds of Jensen doing the same thing. Finally, she shoved the used wipe in a pocket of her pack. “You were right,” she finally said. “My gut’s been telling me all along that something’s fucked up here.”

“Archaeopteryx,” Jensen's awed whisper was full of wonder.

#adam jensen #deus ex mankind divided #fanfic #deus ex #sloane delacourt #wip wednesday #eridani writes #what else might be hiding in the Red Forest?

[neitherabaron]

had to make a blog just to ask this, and i hope you're having an excellent day (aside from the covid!)

for fanart purposes, how tall is kismet? and where's her cockpit/connpod/wherever the pilot sits? (if you have those details ironed out! if not no worries ofc!)

KISMET’s maybe 5-6 storeys tall, which is larger than most of the Armour that Byron and his friends discovered. But she’s unique, whereas most of the others are a standard model with a few variations, coming to about 2/3rds of KISMET’s height.

The control pod’s entirely in the head, which allows the internal control rig to right itself like a ball bearing, keeping the pilot upright whether she’s standing on the ground, hovering, flying horizontally, banking sharply or even rolling.

As you can see, she’s a little insectoid, like a dragonfly or butterfly. Her primary aerofoils and gunlances lock together in flight and separate when grounded. Missiles on her back. She’s not a melee-oriented mecha, so there’s no Gundam-style sword or anything. None of them really do that sort of thing.

[heyclickadee]

This is honestly not a developed enough thought to go in any of my tin foil “Tech’s Alive” rambles, but I think we’re discounting the highly improbable but not entirely implausible possibility of Tech ripping a panel off of the rail car and turning it into a rudimentary aerofoil.

#the bad batch #tbb spoilers #tbbspoilers #the bad batch spoilers #the bad batch season two #tbb speculation #tech bad batch #I’M JUST SAYING #he’d still be going pretty fast and generally downwards but slower and at a better angle #it’s not impossible that he just macgyvered his way out of it #he’d still be beat up and I’m still thinking he’s going to be permanently physically disabled in some way when he comes back #and this isn’t a serious theory #but I thought of those spinny lightsabers and then this and laughed