Transcript
The movement television misses
At about 140 kilometres an hour, the most important movement on the track may be too small for a television camera to show.
A calf presses against the curved nose of a runner.
A shoulder loads one corner of a steel frame.
Two gloved hands draw a pair of rings back by a few centimetres.
Three sleds. Three athletes. One ice channel. And the strange thing is this: the track was going to turn all three of them anyway.
The wall rises. The sled climbs it. The curve bends the path whether anyone asks it to or not.
So what is the athlete doing?
What is there left to steer, when the mountain has already decided where the ice goes?
This is Slidensa — stories of ice, gravity and speed.
No wheel is the wrong clue
Watch a luge race for the first time and a reasonable question appears almost at once.
Where is the steering?
The athlete lies on their back, feet first, arms at their sides, apparently doing nothing at all. A skeleton slider looks even stranger: head first, face down, chin a few centimetres above the ice, holding on to nothing. Only the bobsleigh seems to offer a familiar answer. There is a pilot at the front, and somewhere inside the shell there must be something to hold.
There is. But it is not a wheel.
In the other two sports, even that much is missing. A luge sled is built from a short list of parts, and none of them is a steering wheel or a brake. A skeleton sled is barely more than a frame, and its rulebook bans any hydraulic, pneumatic or electrical device from being fitted to it.
So the question of this episode sounds simple.
If luge and skeleton have no conventional steering mechanism, what is the athlete actually controlling?
The answer will take us through all three sleds. A pair of ropes and a steel bolt. A fibreglass seat and two flexible runners. A bare steel frame with a belly pan underneath it.
But first, it means abandoning the clue that made the question look obvious.
A sled is not a car on ice.
A car turns because its wheels point somewhere new and grip the road. Take away the steering and the car goes straight.
A sled on a modern track does not work that way. Take away every input, and it still goes round the corners. Most of the turning is built into the concrete.
So the real question is not how the athlete turns the sled.
It is how the athlete decides where the sled will sit within a turn the track already supplies.
The track turns first
Begin with the bank, not the sled.
A sliding track is a channel of refrigerated ice laid over concrete. On the straights it is a shallow trough. In the curves, the outside wall rises, sometimes until it is nearly vertical.
When a sled reaches a curve, it does not need to be told to turn. Its own speed carries it outward and up the wall. The wall pushes back. That push, from the ice, is what bends the sled’s path. The faster the sled, the higher it rides and the harder the wall pushes. In the tightest, fastest curves, athletes can feel close to five times their own weight pressing them into the sled.
This is the first surprise for anyone looking for a steering wheel.
The force that turns the sled is enormous, and the athlete does not make it. Gravity provides the speed. The curve provides the turn.
What the athlete can change is the relationship between the two.
Every curve has a line through it: a path up the wall, around the bend and back down to the floor of the next straight. Enter too low, and the sled can climb late and come down hard and crooked at the exit. Enter too high, and it travels further, rides closer to the lip and may be thrown across the track into the next wall.
Arrive at the right height, at the right angle, and something quieter happens. The sled settles. It rides the bank like a marble in a bowl, and it leaves on a line that sets up the next curve.
That is why the sport sounds so strange when athletes describe it. They talk less about turning than about entering. Less about direction than about timing. A curve is not one decision. It is the consequence of the curve before it.
A good run can look like a run with almost no steering at all.
There is a physical reason for that.
Every time a runner is made to push sideways against the ice, rather than glide along it, something is spent. The runner bites. It may scrape, skid or chatter. Ice is cut. Energy that would have become speed becomes heat, noise and shaved ice instead.
Gravity gives a sled only so much energy on the way down. Some of it becomes speed. Air resistance and runner friction bleed part of it away. A steering input that makes the runners fight the ice bleeds away more, and the athlete can never get it back.
So the athlete is in an odd position.
They must control the sled. But the most expensive thing they can do is control it more than they need to.
This is not the same as saying that steering is always slow. A correct input at the right moment can prevent a much larger loss: a skid, a hard knock on the wall, a ruined exit. The point is narrower and more interesting.
Unnecessary steering is slow.
And the skill is knowing which steering is unnecessary.
Keep that idea in mind, because it will return in every sled. The athlete does not control left and right so much as a line through time.
The sled with visible steering
Bobsleigh is the place to begin, because it is the one sled whose steering you can draw.
A modern bobsleigh is built on a steel frame, wrapped in a shell of fibreglass or carbon fibre. Beneath it are four runners: a front pair and a rear pair.
The rear runners are fixed. They point where the sled points, and that is all.
The front runners are different. They sit on an axle carried by the front frame, and that whole front assembly can rotate on a steel steering bolt. Rotate it, and the front runners point a little to one side of the rear pair.
The pilot controls that rotation with two ropes.
Each rope runs to a ring, usually called a D-ring for its shape, one in each hand. Pull the right ring and the front runners turn right. Pull the left and they turn left. There is no wheel and no column. The pilot sits low inside the cowling with the hands in front of the body, and the rope transmits a pull straight to the front of the sled.
So there is a steering mechanism. You can photograph it. You can find it in a rulebook drawing.
And yet the pilots themselves often describe their job in terms that sound like a riddle.
Rissling Bobsleigh, a coaching and pilot-development site, puts it bluntly: the goal of a pilot is really not to steer at all.
That is not modesty. It is the same physics as the bank.
When the pilot pulls a ring, the front runners stop pointing exactly where the sled is travelling. They push sideways against the ice. That changes the sled’s direction, but it also makes the runners cut. Pull gently and briefly, and the cost may be tiny. Pull hard, or hold the pull, and the sled can begin to skid. A skidding sled is a sled pushing snow.
Then there is the problem of the second correction.
A sled that is turned too much must be turned back. The correction becomes a new disturbance, and that disturbance may need its own correction. NBC’s bobsleigh glossary describes pilots giving slight counter-steer precisely to stop a small error snowballing into a sequence of larger ones.
There is also a timing problem that a car driver rarely meets.
At well over a hundred kilometres an hour, a curve is over in a second or two. The response to a steering input is not instant. The runners need time to change the sled’s path, and the sled needs time to find its new height on the wall. By the time the pilot can see that the sled is in the wrong place, the moment to fix it cheaply may already have passed.
So a pilot is not simply reacting. A pilot is anticipating.
The input often has to begin before the consequence is visible.
The pilot’s invisible work
That raises a question. If the input must come before the evidence, where does the pilot’s knowledge come from?
Much of it comes from walking.
Before racing, pilots walk the track with coaches. They stand in the curves. They look at where the wall begins to rise, where the light changes, where the ice is marked by the sleds that went before. They talk through the entry and the exit of every bend. Then they replay the run in their heads, curve by curve, until the sequence is memorised.
The walk matters because, from inside the sled, the view is poor.
The pilot sits low behind a curved cowling. The head is held still against the forces in the curves. Vibration blurs the picture. Much of what the pilot knows arrives not through the eyes but through the body. Pressure in the seat. A change in the load through the shoulders and hands. The moment the sled starts to climb.
The American pilot Steven Holcomb is the most famous illustration. He raced for years with a degenerative eye condition called keratoconus.
By 2007, his vision had deteriorated to roughly twenty over five hundred, and he was driving largely by feel. Treatment restored his sight in 2008. He won the four-man world title the following year. Then, in 2010, he won Olympic gold.
Most pilots are not driving half-blind. But Holcomb’s story makes the general point visible. Driving a bobsleigh is less like watching a road than like playing a memorised piece of music while listening very hard to the instrument.
It also explains why a small error at the top can matter so much at the bottom.
The start is fast and violent. The crew sprints, pushing the sled for the first fifty metres or so. Then they load, one by one: pilot first, brakeman last. Only once the pilot is down and settled can the ropes be taken up.
The German pilot Laura Nolte described exactly this kind of moment at the 2026 Winter Olympics.
It came in the two-woman event, on the new track in Cortina.
After her first run, she told the International Bobsleigh and Skeleton Federation that she had had problems getting to the steering ropes soon enough. She was late, and, in her words, she messed up corner one. The upper part of the track became rough after that. Speed lost up there, she said, is hard to win back lower down.
Her start had been strong. The push was not the problem. The problem was the second or so between loading and steering.
For the second run, Nolte shortened her own run before loading. She and her brakewoman, Deborah Levi, still produced a very good start. But the change gave Nolte time to reach the ropes before the first curve arrived.
Think about what that means. At the Olympic Games, a pilot changed how she ran at the start, not to push harder, but to be ready to steer sooner.
A late grip is not a dramatic error. No one sees it on television. But a sled that enters curve one badly leaves curve one badly, and it enters curve two already behind.
The British federation’s coaching guidance offers a rule of thumb for the start: time lost there roughly triples by the bottom. The same arithmetic applies to lines. Speed lost early is speed the sled does not have for the rest of the run.
So the pilot’s work is mostly invisible because most of it happens before the evidence arrives. Steering begins at the track walk. It continues through memory. And by the time the sled is in the ice, the best inputs are often the ones too small and too early for anyone else to notice.
A brake you must not use
There is one more control in a bobsleigh, and it is the one that most clearly is not for steering.
The brakeman, the last athlete to load, sits at the back of the sled. Between the brakeman’s legs is the brake.
It is a toothed steel rake. The rules call it a harrow brake. They specify how many teeth it needs and how tall they must be. And the teeth must be able to dig well into the ice below the runners. When the brakeman pulls the handles, the teeth bite into the surface and tear the sled to a stop.
And there is only one place in a race where that happens.
After the finish.
The title “brakeman” sounds as though it describes the central job of the race. In fact, for almost the entire timed run, the brakeman’s job is simple. Push hard at the start. Load cleanly. Then become as small and still as possible. The braking starts when the clock has stopped.
There is a reason the brake is reserved for the outrun.
A brake that tears into the ice would destroy a run in a moment. It would also scar the track for the sleds that follow. And it would confuse the two things that this episode is trying to separate.
Steering and slowing down are related. Any steering input that makes a runner fight the ice will spend some speed. But using drag to control the run is not a technique a racer wants. It is the cost they are trying to avoid.
So the bobsleigh gives us a clean baseline.
A steering mechanism you can see. A brake you can see. And a discipline in which the best use of both, during the race, is restraint: the smallest possible input on the ropes, and no input at all on the brake.
Now take the visible mechanism away.
Luge — make the sled deform
A luge sled is light and low. In international competition, a singles sled weighs about two dozen kilograms.
It has four main parts, and every one of them matters to steering.
First, two runners called kufens. The word comes from German. They are long curved runners that rise at the front into two horns, one on each side of the athlete’s legs.
Second, the steels: thin, polished steel blades fixed to the bottom of the kufens. They are the only part of the sled that should touch the ice.
Third, two bridges: crossbars that join the left runner to the right.
And fourth, the pod: a shaped seat shell on which the athlete lies.
There is no steering bolt. No ropes. No front axle that rotates.
For that reason, luge is often described as having no steering at all.
But the International Luge Federation’s rules describe something more interesting. They treat steering as a result of the interaction of the sled’s main parts — runners, steels, bridges and seat. The steering mechanism is not missing.
It is distributed across the whole sled.
To turn, the athlete uses the parts of the body that touch those parts of the sled.
The main input is the calves. The athlete’s lower legs lie against the inside of the kufens, near the curved horns at the front. Pressing one calf against one kufen flexes that runner. The steel beneath it changes the way it meets the ice, and the sled begins to turn away from the pressed side. Press with the right calf, and the sled moves left. Press with the left, and it moves right.
The shoulders add to it. Pressing down with the opposite shoulder loads the other corner of the pod. Together, a calf at one end and a shoulder at the other twist the light sled across its length. The head can add a little. So can a subtle shift in the athlete’s weight.
But “shifting weight” is not the whole explanation, and it is a misleading one on its own.
A luge sled is not a rigid tray on which the athlete leans. It is meant to give. Its runners and bridges flex. The athlete’s pressure changes the shape of the sled, which changes how hard each steel presses into the ice, and how the edge of each steel bites. That changed contact is what turns the sled.
So the athlete does not operate the steering. In a real sense, the athlete and the sled together are the steering.
It is also why the effect of a movement cannot be given as a fixed number.
The same pressure produces a different response on a different sled, with a different setup, on different ice, at a different speed. Lugers and their technicians spend enormous effort adjusting how the steels are shaped and set. Take Georg Hackl, the German slider who dominated the Olympic luge of the 1990s.
Hackl was famous for preparing his own sleds, and for setting them up to suit the ice on the day.
Setup is not separate from steering. It decides what the athlete’s calf will actually do.
And none of this happens in a vacuum. At luge speeds, the air is a major opponent. Luge is built for extraordinary speed, partly because of the athlete’s shape. Lying flat on the back, feet first and toes pointed, a luger presents very little to the wind.
Every steering movement threatens that shape. A shoulder that lifts, a knee that bends, a head that comes up to look — each one opens a gap the air can catch.
So a luger must steer the sled while remaining almost perfectly still.
That sounds like a contradiction. It is actually the definition of the technique.
Looking through your feet
Now consider what a luger can see.
Lying on the back, feet first, with the head raised only slightly, the athlete sees mostly sky. Along the line of the body there is a narrow view of the track, past the toes. Lifting the head further would show more, and it would cost speed.
So the luger, like the bobsleigh pilot, relies on memory and feel. The view confirms; the body informs.
A light sled and a thin suit leave little between the athlete’s back and the ice. Lugers talk about vibration through the sled, the moment it begins to climb a wall, the change when it settles. They talk about rhythm, and about letting the sled run.
Before the 2026 Games, the luge federation asked its athletes about the new Olympic track in Cortina. Their answers are a small lesson in how varied this feeling can be.
Julia Taubitz said that when the rhythm is right, you can let the sled flow, almost dance, down the track.
Austria’s Hannah Prock pointed to the shape of the course: time lost high up is difficult to win back, because the later sections rise.
And Marion Oberhofer warned that Cortina’s big curves demand a lot of active steering. It is not, she said, simply a gliding track.
Put those together and the picture is not “do nothing”. It is “do the right thing, and no more”. Sometimes that means letting the sled dance. Sometimes it means steering hard through a heavy curve, because the alternative is a worse line and a bigger loss.
Most corrections in luge are brief: a press of a calf for a fraction of a second, a load through one shoulder. A larger input does not simply turn the sled more. It is more likely to make the steels bite and scrape, unsettle the sled, or start a sequence of corrections.
And the margin is small. Luge is timed to the thousandth of a second. Gaps between medals can be a few hundredths across several runs.
So the strange stillness of a good luge run is not passivity. It is control, spent carefully.
There is one more difference that matters. Luge begins differently.
Bobsleigh and skeleton athletes sprint on foot before they load. The luger sits on the sled at the top, holding two handles, rocks back and forth and then pulls hard. After that, the athlete paddles the ice with spiked gloves for a few strokes before lying back.
Luge also does not always start from the same place as the other two sleds, and its timed run is often a different length. That matters when people compare times. You cannot say which sled is fastest by lining up results from different start points.
Any ranking of the three sleds is the result of starts, shapes, runners and tracks. It is not a law, and a clean comparison is harder to find than it looks.
That leaves one sled, in some ways the strangest.
Skeleton — the forbidden mechanism
For years, explainers of skeleton have repeated a sentence that seems almost designed to provoke this episode: devices to assist steering or braking are prohibited.
Today’s rulebook puts it differently, and more broadly. No hydraulic, pneumatic or electrical device may be fitted to the sled, and no device that converts energy. There is no wheel to turn, no rope to pull and no lever to press.
So the sled has no conventional steering mechanism. And yet it must be steered, at well over a hundred and twenty kilometres an hour, down a track built for bobsleighs.
A skeleton sled is little more than a steel frame with two runners and a base plate beneath it, often called a belly pan. There is a saddle on which the athlete lies, bumpers at the corners to take knocks from the walls, and two handles. The handles are for the push at the start. They are not for steering.
The athlete lies face down, head first, arms tucked along the body. The chin is a few centimetres above the ice. In the fastest curves, the head carries several times its usual weight. The athlete still has to hold it steady enough to look down the track.
That is the first difference from luge. A skeleton slider faces the track coming towards them. A luger looks past their feet. Coaches sometimes describe skeleton steering as subtler, more precise.
So how is it done?
Coaching explanations give the answer in the athlete’s body. To steer left, for example, the slider can press the right shoulder down into the sled, or the left knee, or both together for a sharper turn. To steer right, the pattern reverses. Small movements of the head can matter too, especially on straights.
But again, the useful question is not which body part moves. It is what that movement does to the sled.
Here, there is unusually direct evidence. In a 2014 study, researchers fitted skeleton sleds with force sensors and recorded what athletes actually did on the ice. Their empirical model describes shoulder and knee forces contorting the sled’s frame. Because the frame twists, one runner’s knife — its edge — is loaded into the ice more strongly than the other. That uneven bite creates a turning moment.
The same researchers point out the price. Uneven friction on the runners turns the sled, and it also slows it down.
So skeleton steers without a steering device, and without breaking a rule.
There is no device that steers. The sled is built to flex in a useful way. The athlete supplies the force. The steering mechanism is the combination of a flexible frame, a pair of carefully prepared runners and a person lying on top of them.
The research is a model, not a final theory. Runner-ice contact is complex: temperature, pressure, the real area of contact and the shape of the runner all change what happens. A slider cannot know in advance precisely how much a given press of the knee will turn the sled.
That is why skeleton athletes adjust runners for different tracks and ice, and why the same movement on a different day can produce a different response.
And it is why sliders learn from the bottom up. Novices begin low on the track, from a starting point a few curves from the finish, and move higher only as their control improves. They learn the curves before they meet the full speed of the track.
Steering, again, is learned as a sequence, not as a reflex.
The expensive toe tap
There is one control in skeleton that anyone can see from the side of the track.
The feet.
A skeleton slider’s feet trail behind the sled, toes down. Drop a toe onto the ice, and it drags. That drag pulls one side of the slider back and changes the sled’s direction.
It works. But it is expensive.
A toe dragging on ice is a small brake. It spends speed with every centimetre. So sliders prefer quick little taps when they need them, rather than long drags, and the best runs need very few.
The idea is old. On the Cresta Run in St. Moritz, where head-first sliding became a tradition, riders wear boots with rakes on the toes. They dig them in to steer and to slow down. On a modern enclosed track, the toe tap is a smaller, rarer descendant of that habit.
The toe tap is the clearest picture in this whole episode of the bargain at the heart of steering. Some inputs change the sled’s direction efficiently. Others change direction by slowing one side down. Both work. Only one of them is cheap.
In an emergency, the expensive input is the right one. A late correction that costs a tenth of a second is better than a crash, or a hard knock on the wall that costs several tenths.
But a run made of emergency corrections is not a fast run.
And after the finish, the bargain flips.
There, slowing down is the goal. A skeleton slider crosses the line, sits up or rolls to one side, puts both feet down and drags. The outrun usually climbs uphill, and the slope does much of the stopping. Some tracks use mats at the very end. Television usually cuts away before you see it.
The same is roughly true of luge. Neither sled has a brake. After the finish, the athlete sits up, puts the feet down and lets friction and the rising outrun stop the sled.
The bobsleigh’s toothed brake, the luger’s boots and the skeleton slider’s toes all do the same job at the end. In the race itself, each is a cost to be avoided.
Same channel, different conversation
Put the three sleds side by side, and the steering stops looking like three different techniques. It starts to look like three ways of asking the ice the same question.
In bobsleigh, the question is asked through a mechanism: ropes rotate the front runners while the rear pair stays fixed.
In luge, it is asked through the whole sled: calf and shoulder pressure flex the runners, bridges and pod, without breaking the athlete’s low, flat shape.
In skeleton, it is asked through a frame with no conventional steering mechanism. Shoulder and knee pressure contort it and load one runner into the ice. A toe at the back is the expensive last resort.
They do not even meet the ice in quite the same way. A luge has separate bladed steels. A skeleton’s runners begin as round-section steel bars, with shallow grooves that provide the working edges. A bobsleigh carries hundreds of kilograms on four runners, and only the front two can turn. A heavy bobsleigh tends to carry its momentum through a correction, so the pilot must often ask earlier. A light luge sled tends to answer sooner.
None of this is fixed. Ice, runners, setup and speed change every response.
But all three share one problem.
A curve that turns the sled for you. A sled that responds a moment late. A runner that can either glide or bite. And a supply of speed, given once by gravity, that every unnecessary input will spend.
That is why the most important steering decisions are often the ones not to steer.
Three states, not three techniques
Slidensa, our own game, has to turn all of this into something a player can do with their hands.
The choice it makes is deliberately small.
Every sled in the game is steered in the same three states: left, nothing, or right. On a keyboard, on a gamepad, on a touchscreen, the input is the same. A stick is reduced to those three values. That keeps the leaderboard fair between devices.
It also echoes an older game. The 1987 Bobsleigh, from our last episode, steered with just two keys.
At first, that seems to throw away everything this episode has described. No calf. No shoulder. No rope.
But the game is not trying to put a body into a button. It is trying to put a decision into it.
With only three states, all the feel of the steering has to come from the sled. What does it do while a key is held? And what does it do when the key is let go?
How quickly the steering builds up when a key is pressed. How the sled settles when it is released. How strongly the bank pulls the sled back towards its natural line when the player does nothing. Whether the sled grows more sensitive as it gets faster, as real sleds do. And whether a single tap is a meaningful correction, or nothing at all.
Those numbers are the skill.
Each sled gets its own values. A bobsleigh can respond more heavily than a luge sled. A skeleton can feel more twitchy and more exposed. The button is shared. The response is not.
And the current physics now makes the player pay, in speed, for ignoring the most important lesson of the real sports.
Early versions had a flaw: steering cost nothing, so a player could hold the sled down low through every curve and match the game’s autopilot.
That was a bobsleigh with no friction in its front runners.
The current physics adds a cost. Steering against the load of the curve — holding the sled lower than the bend wants to carry it — spends speed. In the game’s current tests, holding the key through every bend costs most of a second on every sled.
Steering with the load, easing the sled down as the curve releases it, is free, at least in the model.
So the fastest way to play is now the dangerous way. Let the sled ride its line. Correct it only when it is wrong. Trust the bank.
That is also where the risk comes in. If the sled climbs too high, it can tip over. And the steering is strong enough to put it there.
The game punishes the opposite mistake too. A run with no input at all is not a perfect run. A slip that the player leaves uncorrected for long enough costs far more speed than one that is caught. On the game’s model of the Austrian track at Igls, a completely hands-off run finishes several seconds behind.
That is the honest connection between the game and the sport. A button press is not a calf, a shoulder or a rope. Pretending it was would be dishonest.
What a three-state control can carry is the thing all three sleds share: timing, restraint, and a consequence for getting either wrong.
The athlete is part of the mechanism
Return to the movements television misses.
A calf against the curved nose of a runner. A shoulder loading one corner of a steel frame. Two hands drawing a pair of rings back by a few centimetres.
At the start of this episode, they looked like small substitutes for a missing steering wheel.
They are not substitutes. They are the steering.
In bobsleigh, the mechanism is visible, and the skill is using it as little as possible. In luge and skeleton, the mechanism is not absent. The athlete is part of it: a body pressed into a flexible sled, changing how a strip of steel meets the ice.
And in all three, the most important movement is often the one that does not happen.
At first, steering means making the sled turn.
By the end, it means knowing when the track will turn it for you.
Sources, a transcript and the project are at slidensa.com.
Slidensa is an independent game about bobsleigh, luge and skeleton.