Posts tagged: HANS

F1 Safety - How Safety Has Improved

By Christine Blachford

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Welcome to the sixth episode of F1 Safety. Having covered pretty much everything in modern safety from the helmet to the Medical Car, today we’re going to look back through the years and see how safety has improved.

The first race of the new F1 World Championship took place at Silverstone in 1950. Grand Prix racing had been around for years, but this was the start of the official competition. Back then, Silverstone was simply an unused airfield, there was no particular thought to the safety of racing high speed cars. No medical backup was around, the only run off areas were a happy accident rather than a planned safety feature. The cars were built simply to be fast, to get round the lap in the quickest time, and that was all that mattered.

By the 1960s, it was clear that things had to change and safety needed to be a consideration. In 1961 the first rollover bars were introduced on the cars, and in 1963 helmets and fireproof overalls became mandatory. This same year, the FIA took over responsibility for safety during Formula 1 events, building procedures into the regulations. Fire extinguishers were introduced in 1969, and the next year circuit inspections were introduced. By this point, crash barriers were beginning to take shape, and a wall was mandatory between the pit lane and the home straight.

In 1972, the red rear lights on the cars were introduced, the aim being to try and reduce pileups. Circuits had benefitted from marshals and some even had a medical centre, but in 1975 these two safety features became part of the regulations. Permanent medical centres were mandatory in 1980.

A couple of years earlier, the FIA introduced the rule that a driver had to have a super licence to take part in a Formula 1 event. By this point, the car had the safety cell, otherwise known as the tub, that was strong enough to keep a driver safe. In 1981, the cell was extended so that it covered the driver’s feet as well.

With medical centres a big part of each circuit, the next stage was to bring the helicopter in, and by 1986 the chopper had to be on stand by at all times. In 1988, we saw the introduction of crash tests for the safety cell and the fuel tank, and in the same year, Charlie Whiting was appointed as the permanent Race Director for the FIA.

We’re into the ‘90s now, and entering the new decade saw the rear view mirrors grow larger – still useless though – and the steering wheels now had to be detachable and quickly removable in case of an accident. In 1992, the Safety Car was introduced, and so the regulations were tweaked to allow for a period following the slower car.

Next up, pit lane safety, as the refuellers and mechanics had to wear fireproof overalls, plus the speed through the pit lane was reduced. The FIA also began to take a dim view to the crowds of fans gathered at the circuit breaking onto the track at the end of the race. They started to encourage more stringent crowd control measures. Following a tough year in 1994, the FIA undertook some computer analysis of the circuits on the calendar and found 27 corners that were high risk and needed to be improved. The governing body also tightened up restrictions on getting a superlicence, only the best need apply.

In 1997, the black boxes were introduced, meaning accident data could be recorded and reviewed after the event. Preventative measures were also improved, with the crash tests broadened to include rear impact and gearbox safety as well.

Towards the millennium, we started to see safety improvements that have shaped how Formula 1 is, including tethered wheels, the introduction of asphalt run offs rather than gravel, increased number of medical cars, and the ability to remove a driver with his seat in case of emergency. In 2001, the FIA turned their attention to marshal safety, and specified some more stringent protection for them.

In 2002, the crash tests became even more detailed, and in 2003, five tracks had to tighten up their run offs and safety zones to be allowed on the calendar. HANS also became mandatory.

Whilst safety improvements are happening all the time, little by little, most of the massive things that can be done have been done already. The FIA are turning to a new bigger picture, and following the McLaren fine of $100 million, they set up a Motor Sport Safety Development Fund. The idea is that within five years they will have organised a safety program for young drivers, and set up training programs for officials and potential new circuits. There is plenty more still to be done.

That’s it for this penultimate episode of F1 Safety. Tomorrow is the last show, and you can let me know what you think of this series by emailing Christine@sidepodcast.com or leaving a comment on sidepodcast.com.

Theme music: Headway, Safety.




F1 Safety - Helmets and Clothing

By Christine Blachford

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Hello and welcome to Sidepodcast, this is a new mini series called F1 Safety. We’ll be taking a closer look at all the things that minimise the risks of driving at 300km/h. We’ll be covering various topics over the next seven shows, and today our attention turns to helmets and clothing.

Every Formula 1 ticket across the globe heralds the warning: “Motorsport is dangerous.” And it is. No one could argue that driving at enormous speed around a narrow circuit would be anything but. However, F1 has taken great strides forward in safety since its early days, and now even the smallest details are covered with precise requirements.

The driver’s helmet is a perfect example. For a driver, his head, neck, and arms are the most exposed areas during a race. The rest of his body is tucked away behind sheets of carbon fibre, but his head takes the full brunt of any oncoming forces. Putting aside what could happen in an accident, every single corner taken by a driver can be a strain on the head.

It is no surprise, therefore, that every driver wears a helmet. They can weigh anywhere between 1250 grams and 1800 grams, and not only are they designed for safety, but also try to blend well with a car’s aerodynamic profile. Made out of layers and layers of carbon fibre for strength, the helmet is lightweight, virtually indestructible, with fireproof materials forming the cushioning on the inside.

There are a few main helmet suppliers, including Bell and Schuberth, and all are subjected to strict crash test procedures by the FIA. Each helmet is fully customised for the driver and most include holes for breathing, ventilation and drinking straws. The ventilation does include some filters to keep out elements of carbon, brake dust, oil and fuel vapours. The helmets also block out a lot of the surrounding noise, which allows for drivers to be in radio communication with their engineers in the pits.

As well as being able to hear, it also helps if a driver can see, obviously. The visor is about 3mm thick, and fireproof, with variable tinted shades depending on the time of the session, the state of the weather, and the track. At Singapore, many of the drivers had lighter visors to help visibility, whilst we know Felipe Baby wanted a lighter visor during the bad rain in Malaysia. Technology also exists to allow the tinting to adjust, as some sunglasses do. In the tunnel at Monaco, it can be slightly brighter, whilst at the exit it can darken again.

Underneath the helmet, the driver wears a balaclava made of Nomex, and this is a name you’ll hear a lot when it comes to safety clothing. Nomex is supremely flame retardant material, in that it can be subjected to open flames of about 300 to 400 degrees C temperature without igniting. It’s used for the drivers balaclava, as we’ve already mentioned, plus overalls – with elastic cuffs on the wrist and ankles – for drivers and the pit crew, gloves, socks and underwear.

The overalls also have zips that are designed to be flame retardant and more importantly, not to transfer heat onto the drivers skin, as regular metal zip would. Racing shoes continue the fireproof trend, but are also lightweight, with thin soles and plenty of grip to allow maximum control in the car.

Once the driver is kitted out and ready to race, he needs just one more piece of equipment – the HANS device. This Head and Neck Support device is a way of tethering the helmet so that a drivers head won’t flail around in case of an accident. The system consists of a so-called shoulder corset, made of carbon fibre, which is then connected to the helmet by small straps, and to the safety belts as well. The device is designed to allow the natural movement of racing, but it should restrict the impact of an accident. That kind of force could increase the weight of a helmet to as much as 560kg, which can be absorbed by HANS.

The FIA commissioned the development of the design from Dr Robert Hubbard of the University of Michigan in the mid-1990s, but HANS didn’t become mandatory until 2003.

There is so much technology involved in these helmets and clothing elements already, but developments are happening all the time. Recently, some drivers have tested out heated visors to try and help with the problem of fogging up in humid conditions. There’s plenty more innovation still to come.

That’s all for this first episode of F1 Safety. Tomorrow we’ll take a look at another element of safety within Formula 1 and until then, your comments and feedback are always welcome. You can email me Christine@sidepodcast.com.

Theme music: Headway, Safety.




Driver Safety - HANS

By Christine Blachford

This article was originally written for BellaOnline, but is republished here for posterity.

The HANS device (Head and Neck Support) arrived in Formula 1 in 2003. It's eseentially a piece of carbon fibre that wraps around a driver's neck, sitting snugly on his shoulders, similar to a travel pillow. It's main purpose is to reduce the forces placed on the head and neck in case of an accident. The helmet does well to protect a driver's face and head, and being strapped securely into the car helps his body, but his neck is left vulnerable. If a crash occurs, the violent forces can do some serious damage. With such high G forces involved in Formula 1, the pressure is similar to whiplash from a normal road crash, but obviously quite a lot worse.

The HANS device is made entirely of carbon fibre, and is placed on the driver's shoulders at the same time his helmet goes on. HANS is attached to the helmet loosely, so that drivers can still move their head around unrestrained. However, in case of an accident, the tether does it's job and restricts movement of the head and neck. Once inside the car, the device fits underneath the safety belts, and the driver is good to go.

HANS originally hit the market in 1990, but Formula 1 largely ignored it, as there is precious enough room in the cockpit as it is. After an accident in 1995, which saw Mika Hakkinen fracture his skull, the FIA funded a research programme for a new safety improvement. HANS was chosen over other systems, such as airbags, and after a few revisions, the device was made mandatory in 2003. Despite being made smaller and revised to work within the Formula 1 environment, HANS initially was greeted with complaints from drivers. They found running an entire race distance, and race weekend, with the added collar was uncomfortable. However, the safety improvements vastly outweighed the small discomfort, and as happens with most things, the drivers got used to it.

The official F1.com site suggests the figures are as follows:

Reduction of head movement: 44%
Reduction of forces: 86%
Reduction of acceleration: 68%

They are certainly significant savings and the number of injuries that have been avoided is probably not quantifiable.




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