Category: Safety

EVs

I do find the anti-EV campaigning on social media a bit peculiar. It’s a bit like the arguments for smoking that were made in the 1950s and 60s. Combustion engine vehicles are slowly but surely going to become history. The time for that change is the subject that should be discussed and not whether it’s a good idea or not[1].

One “argument” out there is that adding together all the elements that make-up an electric vehicle there’s a lot of environmental cost in their production. There’s no doubt that nothing is for free. For example, mining lithium and cobalt are not nice in every respect. There’s the concern that demand could quickly eat-up global supply too.

The “arguments” I’ve seen fall apart when considering not only the vehicle production environmental costs but the lifetime costs of an EV when compared with an internal combustion engine vehicle. 20-years of belching out toxic emissions stacks-up. 20-years of using renewable electricity is a far better solution. In theory the potential for recycling valuable materials is high with EVs too. However, we have yet to see if that works successfully in practice.

Other “arguments” look to demean the performance of EV’s when compared to conventional vehicles. Naturally, the time taken to recharge is one of the biggest gripes. For a conventional fuelling at a petrol station a tank can be filled with 500 miles worth of fuel in 15 minutes. For a current EV more preparation, planning and patience are needed to achieve a lesser range.

Some EV performance figures are far superior to conventional air breathing vehicles. Acceleration is one. Powerful electric motors unencumbered by complex mechanical transmission systems react immediately to demands[2]. EVs use power better.

There’s another gripe or moan and that’s about weight. Taking two comparable vehicles, in performance terms, the electric one will be heavier. That’s the technology we have now.

It’s a different kind of weight if that makes any sense. What I mean is that an EV is roughly the same weight whatever the state of the machine. Whereas a vehicle that uses liquid fuel varies in weight according the amount of fuel on-board. Of course, all vehicles vary in weight depending on the payload they carry (goods or passengers or both).

What’s a little difficult to take from the anti-EV lobby is that those who complain about EVs impacting roads, due to their weight, are rarely the same people who express concerns about heavy diesel delivery trucks or Chelsea tractors thundering down residential roads.

There’s one hazard that must be managed for all types of vehicles. A view of a serious fire involving either an EV or a conventional vehicle quickly shows what that threat can do. What we have now less experience dealing with EV fires. They can be severe and difficult to supress.

Regulation is often reactive. The fire threat is real. In this case maybe we do need fire suppression systems in integrated household garages. Multistorey car parks packed full of EVs are going to be a real challenge if a major fire sparks off. That said a fire started with a “diesel-powered vehicle” can be just as challenging[3].

[1] https://www.ft.com/video/95f86c5d-5a94-4e63-bbe8-6cc5ffb59a2b

[2] https://www.caranddriver.com/features/a38887851/why-are-evs-so-quick/

[3] https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-67077996

Beware

There is some corrupt b****** out there in INTERNET land. They would dip their hand in your pockets and take whatever they can in a second. It’s downright evil. The wild-west element of the INTERNET has never gone away. It’s a global problem.

I’ve never had a Netflix account. Maybe that’s unusual. It would be nice to have one but, personally I’m not convinced that the costs are warranted. Not today. I’m slow to step on the streaming bandwagon. I still have a pile of DVDs and CDs. Yes, I’m a primitive. In some things an early adopter but when it comes to services that require regular payments, I’m cautious.

As regular as clockwork junk e-mails turn-up saying that I need to update my payment details, or my Netflix account will be suspended. Followed by an exclamation mark. On closer inspection they are amateurish cons. In fact, it’s good that the junk mail filter can see through them as they come in.

This kind of fishing is criminal. Somewhere there’s a group on con artists thinking up ever more devious ways of taking money from people. The amateurish ones may not be a threat to me, but I wonder how many people they do catch. Even one in a hundred thousand would net a nice return for virtually zero outlay.

It may be the case that lots of people think that they are not so stupid as to fall for these blatant entrapments. What’s concerning is that cybercrime is becoming ever more inventive. We’ve yet to see what developments in intelligent algorithms will do to this landscape.

The best advice around is to never ever, I mean never ever, give personal payment details in response to an unwanted request. Most honest organisations make a point of saying that they will never request bank details in unsolicited e-mails. Unjustified urgency and a threatening tone are another sign that something is wrong.

Electronic means, namely the digital economy is not as robust as the traditional over the counter transaction. Organisations are aware of this fact. Warnings saying that they will not take responsibility if money is transferred to an incorrect bank account are commonplace.

The digital economy has been a boom for the major banks. High Streets up and down the country now have grand imposing buildings that are coffee shops, restaurants and, in the case of my town a kitchen showroom. Banks have retreated from face-to-face relationships. The responsibility for being aware of the potential for cybercrime has been firmly placed on the shoulders of the individual.

Talking to people remains important. Certainly, if a request for payment seems strange or unexpected there’s no substitute for picking up the phone, however tedious that process can be. Notes, and paper records still matter or, at least, they still matter to me.

NOTE: Useful information can be found here http://www.actionfraud.police.uk/

Comment

Custom and practice are as important as the rules and regulations that are part of our lives. Now and then, someone is criticized for applying the letter of the law without care for the spirit of the law. The same is true for custom and practice. Whereby, acting outside past norms can trigger a backlash.

Because, in free countries we believe in a free press, the rules and regulations that imping on what should and should not be said about events are always hard fought over. The banner of the “public interest” is touted as overriding. It may or may not be, but there’s an argument to be had.

In the aviation safety profession, I’ve grown up with an instinctively “need to know” disposition. I’ve shaken it off, mostly but there are signs that the attitude persists. This instinct can run counter to the transparency and openness that most people expect to see.

Why talk about the way major events are talked about?

A case in point is the recent runway collision in Tokyo. There’s much already written about the newsworthy aspects of the event, so I’ll desist from adding much more. There’s a lot of speculation too.

Graphs can be drawn of the media attention given to such tragic events against time. It’s typical that from moments after a major aviation accident until a few days after most initial facts are known there’s a huge surge in activity. This used to be described as newspaper column inches.

Today, wide ranging speculation is inevitable. It can be highly literate, and, on the other side of the coin, it can be badly informed, and now and then damaging.

In over three decades, I’ve been dealing with aviation accidents and incidents there has been notable changes in media and communications. For one, the universality of the INTERNET is now unquestionable. For another, the deference offered to authorities has diminished markedly. For yet another, the speed of with which images can travel around the globe is astonishing.

Most aviation professionals are tempered by caution. Aware of the techical complexities that can arise in aviation accident scenarios. What can seem in the heat of the moment to be an obvious cause and effect, after detailed analysis turns out to be wrong, or only a partial picture.

So, should aviation professionals be scathing about the enormous growth in commentary and public speculation? Especially when some of it is wild and or even outrageous on social media. No. I don’t think so. Like it or not this is our digital world. The freedom it affords to throw-up any opinion or theory can only be tempered a bit. The hope is always that the pure dross fades away when a reputable authority challenges it.

That then puts a responsibility on someone, with professional knowledge to challenge ill-founded speculation. Or, at least, to ensure that the major media outlets have reliable sources of trustworthy information. I don’t think aviation professionals should remain silent concerning speculation. That may have been the strategy decades ago. It no longer works. The greatest degree of transparency and openness, based on verifiable facts, should be the aim.

Comment?

Eurostar

More than a few times the thought that climate change will impact transport has been raised. Not so much as transport impacting climate change but the two go hand in hand. Whereas the assumptions built into roads, rails and airports were of their time, time doesn’t stand still.

More frequent heavy rain and raised tides, and the flooding associated with them, are to be expected. To hear that the rail tracks between London and the Channel Tunnel have been underwater shouldn’t be too much of a shock. Flooding is a worldwide threat to public transport systems. In London, over the last couple of days, flooded tunnels brought travel chaos. Millions of gallons of water were not where they were supposed to be.

We can get used to disruption caused by strong winds and torrential rain sweeping across the country. The question to ask is – should we? I always wonder as soon as I see the word: “unprecedented” in a public statement. Huge volumes of water may not have been predicted to overwhelm the pumping systems designed to keep them under control, but now we know. It makes me think we are going to hear the word “unprecedented” a lot more in future.

This city centre to coastline railway is relatively new[1]. It cost £6.84 billion and opened in November 2007. Most travel commentators would say that it has been a great success. I was looking forward to the day that the German train company, Deutsche Bahn was to implement plans for a London to Frankfurt train service. Sadly, that project was shelved in 2018. I wonder why[2]? That “B” word again.

The subject of these comment, the Thames Tunnel is over 3km long. The rail lines dive beneath the river from the counties of Essex to Kent. This High-Speed rail tunnel goes under the river near Fiddler’s Reach. This part of the River Thames, much like most of the tidal river, was once busy with commercial shipping. It’s been the site of unfortunate events before[3].

Further upstream is the Thames Barrier. A truly magnificent structure. The barrier protects central London against a storm surge. It works well. However, it will eventually need to be replaced. The inexorable tide, no pun intended, is moving just one way.

Risk is a multifaceted factor: operational, economic, social, political, safety, security. Did current risk assessments foresee a likelihood of flooding? I don’t know. The safe running of High-Speed trains through underwater tunnels should be subject to risk assessment. I’m sure it is.

Eurostar has experienced a set back as 2023 comes to an end. Eurostar services are again running as normal. But this weather-related event highlights the fact that climate change will impact transport systems. If the thought has not found its way onto the desk of a civil servant, it might be as well to do a high-level audit of the nations transport infrastructure.

Either that or get used to using the word “unprecedented” a lot more.

[1] High Speed 1 (HS1) is a 109.9-kilometre high-speed railway linking London with the Channel Tunnel.

[2] https://www.independent.co.uk/news/uk/politics/london-frankfurt-cologne-train-deutsche-bahn-db-eurostar-cancelled-shelved-a8394806.html

[3] https://www.britainfromabove.org.uk/en/image/EAW143996

Autotraffic

Driving back from Christmas. That’s not a Chris Rea song. Although, he did write “Driving home for Christmas[1]” while stuck in heavy traffic. I expect the feelings are similar – moving down the line. It took some time. Redlights flickering everywhere. Looking at the drivers next to me – looking just like me. Looking stoic or miserable or both.

Our carborne irritations were trivial when compared with the conditions in Scotland. We didn’t get 80 mph winds. At least the snail’s pace of the traffic on the main A303 was a snail’s pace. Inch by inch we moved closer to where we wanted to be. No streetlights on the jammed part of the A303, yesterday. The light went up and down with the heavy cloud cover. Colours ranging from gloomy grey to even gloomier dark grey.

Windborne debris, litter, like discarded crisp packets, set off on journeys of their own. Waterfilled potholes blended into the grey of everything. Crushed traffic bollards popped up as if they were growing amongst the sodden grass verges. Occasional motorcyclists took their life in the hands as they weaved amongst dozy drivers.

In the stationary moments my mind wandered. Who were those people dressed in the storm gear doing the tourist march around Stonehenge? They were not going to give up one moment of their vacation. What’s a blizzard of rain comparted to a once in a lifetime trip around ancient stones?

I got to thinking – how would this work if half the cars around me were automated? Human behaviour is pretty erratic. Driver temperament goes from kind and generous to intensely mean. From the laidback CofE vicar to the road rage professional. The circumstance of the drivers is hugely different too. One may be surrounded by screaming children while another is lone, absorbed in their favourite podcast. The first is a couple of hours into the worst drive of their entire lives. The second is in no hurry and happy for the day to drift by.

I sincerely hope that the makers and promoters of “driverless” cars take the human factor seriously. We know enough from aviation to know that the interaction between humans and semi-automated machines is exceedingly complex. That’s in situations where operating procedures are tightly controlled and monitored.

It’s one thing for car makers to rattle on about the importance of safety, it’s another for promises to meet the road. I’d say this is particularly true for the average British main road. Given its provenance there’s an excruciating number of variables. A truly dynamic set of variables that increase dramatically with speed. Weather goes from plus thirty summers to minus ten ice packs. Worn white lines come and go. Grass verges overhang the carriage way. Tarmac cracks and puddles compete with mud sloshing across the road in the heavy rain. Magpies dart into the road to munch the carcass of a dead hedgehog. The one that didn’t make it across the road.

Human drivers compensate for all the imperfections because that’s just what we do. It’s amazing even what the worst of us do. On the other hand, machines must characterise every single non-standard situation with accuracy, reliability and at great speed. Next time, I’m driving home for Christmas it will be manual. Likely, for a decade more too.

[1] https://youtu.be/uSjq7x67kzM

Next Decade Aviation

Here, I thought I’d speculate on what’s coming our way. That’s looking at the next ten-years.

Although this maybe contradictory to my earlier writings the subject is by no means all or nothing. Aviation is a technology-based means of mobility. Without the technology component there is no flight. Aviation a youthful industry when compared with ships, roads, and rail.

On the other hand, people are at the heart of the aviation system. That’s particularly true in assuring its stability, safety, and security. People create, innovate and fix systems when they fail. People make go-no go decisions. People protect systems from attack.

Commercial aviation maybe a youthful industry but it has an inbuilt conservatism. It’s the characteristic of not wishing to change when systems are working well. This has both and upside and downside.

A maturity of rules, regulations, processes, and procedures comes about by continuous improvement. By people learning. However, it’s often the case that industry does not reflect the society that it serves. People are excluded or walk away when expectations are dashed.

Across the globe, the future of the aviation workforce depends upon change. There again is a rub. People operating in a successful system rarely welcome change. Especially, if the drivers for that change come from outside the tight knit community of aviation professionals.

The first decades of the jet-age were characterised by a sense of adventure, glamour, and pride. As commercial aviation became available to a wider traveling public there was a gradual opening to professional entrants from most sections of society, even if that was predominantly male.

Now, big company traditional career paths are more an exception rather than the norm. Aviation competes with other industries at a time of rapid digital transformation. This has the impact of opening a wide range of options to potential professional entrants. In the coming decade the trend is going to advance.

A successful aviation industry organisation looks for skills and behaviours as much as it looks for raw technical talent. Assuring stability, safety, and security means having a responsible attitude, an instinct to challenge and question.

Today in the post-pandemic world, the industry is going through a period some people have called the “great resignation”. A generation have walked away from the pressure and stresses of the crisis. Industry behaviour, in a rush to cut costs, exasperated this by treating people exceptionally poorly.

For a sustainable future, commercial aviation needs to work to eliminate the hire and fire cycle. The global aviation industry needs to think and act differently. Aviation needs to get off the trap of the “similar-to-me” effect found in hiring. When a selection bias dominates potential professional entrants are put off. Talented young people are likely to choose meritocratic employment where rewards are there for achievement and commitment regardless of non-relevant factors.

Some work will be replaced by automation. However, retaining aviation people with people skills, regardless of background, will be invaluable in the next decade.

B. P.

A forensic dissection of the recent past is highlighting how major decisions are made in the corridors of power. It’s not nice to hear but it is good to hear. Transparency is a benefit of democracy. What we see is not pretty. There’s that saying about politics and making sausages being much the same. We desire results but are shocked if we study how sausages are made.

We easily get trapped in the noisy interchange between personalities. Newspaper headlines draw on our fascination of who said what and when. The more embarrassing the chatter the bolder the headline. The questions how and why are not given as much attention.

Even sampling a little of the reports of the compilation of evidence there’s a trend emerging. Much of this has to do with the way administrators, politicians, and scientist (practitioners and the theoretical) understand each other or don’t.

The classic divided between the Bachelor of Arts, Humanities and Social Sciences (BA) and the Bachelor of Sciences (BSc) is firmly embedded in our society. The divide between Oxbridge and the rest can look like a deep gorge. The divide between those who are instinctive hustlers and gamblers, and analytical reasoning calculators is uncomfortable.

Putting the above to one side, what shines through the submissions of the UK COVID inquiry is an embedded lag between events and a reaction to events. Knowledge with hindsight is wonderful. Time and time again after big events, files are taken down from a dusty shelf and on their pages is a register of risks. Within that the register is a discussion of risk of an event that has just become history. This week we heard a former Prime Minister almost admit that the COVID pandemic wasn’t taken as seriously as it should have been until it nearly killed him.

What does this say about our propensity to plan or take plans seriously? What does it say about becoming overcome or steamrollered by events? What can we do better to be prepared in future?

Lessons learned are fundamental to improving any way of working. It’s a feedback mechanism. Taking what can be derived from a crisis, catastrophe or momentous event and writing it down. Using that to make strong recommendations. Then tracking changes and moving forward to what should be a better prepared state. 

We know we don’t have to wait for bad events to happen before we prepare. Our human imagination provides us with an effective means of anticipation. Tragic in the case of COVID is the ignorance of warnings that previous events had provided. The lesson from SARS[1] were know.

Maybe this is the Cub Scout coming out in me. Yes, that was part of my early upbringing in the village of Somerset. The motto of the British Scout movement[2] has a lot going for it: “Be Prepared”. Much of what goes with that motto is anachronistic, but the essence is immensely valuable.

[1] https://www.who.int/health-topics/severe-acute-respiratory-syndrome#tab=tab_1

[2] https://blog.scoutingmagazine.org/2017/05/08/be-prepared-scout-motto-origin/

Two upfront

One of the fundamentals that remains a part of civil aviation is having two pilots in the cockpit. It’s an indication of the safety related activities of the crew of a civil aircraft. Today, we have a mixture of human control and management. Pilots still fly hands-on when the need arises. The expectation is that throughout their working lives pilots have the competence to do so, at any stage in a flight.

Progressively, since the establishment of aviation’s international order in the 1940s the required crewing of aircraft has changed. Back in September, I visited the de Havilland Aircraft Museum in Hertfordshire. There I walked through the fuselage of a de Havilland DH106 Comet[1]. This was the first turbojet-powered airliner to go into service and it changed the experience of flying forever and a day.

That passenger aircraft, like aircraft of the time, had four crew stations in the cockpit. Two pilots, a navigator and flight engineer. It was the era when electronics consisted of valves in large radio sets and such long since forgotten devices as magnetic amplifiers. The story from the 1940s of IBM saying, “I think there is a world market for maybe five computers” is often repeated.

For modern airliners the navigator and flight engineer have gone. Their functions have not gone. It’s that having a crew member dedicated to the tasks they performed is no longer required. As the world of vacuum-tube electronics gave way to transistors and then to integrated circuits so computing got more powerful, cheaper, and abundant.

With a few significant failures along the way, commercial flying got safer and safer. The wave of change in a human lifetime has affected every mode of transport. More people travel to more places, more safely than ever could have been imagined 80-years ago. Does that mean the path ahead will take a similar shape? Excitable futurologists may paint a colourful picture based on this history.

Let’s get away from the attractive notion of straight lines on graph paper. That idea that progress is assumed to be linear. Tomorrow will be progressively “better” by an incremental advance. That’s not happening now. What we have is differential advances. Some big and some small. 

The aviation safety curve is almost flat. The air traffic curve, with a big hole made by COVID, is climbing again. The technology curve is rapidly accelerating. The environmental impact curve is troubling. The air passenger experience curve may even be at a turning point.

Touchscreen tablets already help flight preparation and management[2]. Flight plan changes can be uploaded and changed with a button press[3]. The squeezing of massive computing power into small spaces is being taken for granted. What does this leave a crew to do?

Back to the start. Two pilots in the cockpit, with executive responsibilities, remains the model that maintains public confidence in civil aviation. The golden rules still apply. Fly, navigate and communicate in that order. Crews, however much technology surrounds them, still need to act when things do not go as expected. Does this mean two cockpit crew forever? I don’t know.

[1] https://www.dehavillandmuseum.co.uk/aircraft/de-havilland-dh106-comet-1a/

[2] https://aircraft.airbus.com/en/newsroom/news/2021-02-electronic-flight-bag-the-new-standard

[3] https://simpleflying.com/datalink-communications-aviation-guide/

Flight Ahead

Although, I’m an advocate of having people in control of machines it isn’t people that are opening new opportunities in transport. Technology is racing ahead and making the past illustrations of popular science magazines become a reality. I can do without the hype in the headlines of flying cars. Building expectations of one in every garage remains a 1950s dream or nightmare, dependent upon your point of view. Aside from that hot air viable new electric vehicles are in the works.

Heavier-than-air machine that do more than buzz around our heads are going to proliferate. The inevitability of this is open to question but if I was to assign a probability to it, the number would be close to one. If we stretch our minds back to an unobserved small corner of the planet in late 1903, a couple of diligent brothers flew a machine that hopped a short distance into the air under its own power. Many newspapers of the time didn’t bother to print this breakthrough story because wise and eminent scientists had told them that it was impossible for people to fly.

It’s clear, getting into the prediction business should be done with humility.

We have a dilemma. It’s so rare of us to turn away from advancing technology when we know it can be made. It’s even more irresistible when the economics scream out buy me. So, a ticket to ride in the realm of Urban Air Mobility (UAM) will need to be no more than a typical taxi ride. Given that a taxi ride from my home to Gatwick Airport is about £20 then that’s the mark to hit. True that short journey may not be commonplace by air at that price until around 2033, a decade away, but it will be irresistible when it comes.

This chapter in air transport, that is being written is as significant as that in late 1903. I know that’s a mega statement, but the signs do point that way.

Eventually, UAM will become a network of piloted and autonomous electric air vehicles operating between cities and major destinations like airports.

Now, a couple of solvable challenges stand in the way. One is the endurance and portability of the energy storage devices. The other is complexity and mastering the science and art of functional safety. There’s plenty of confident hyperbole to suggest that these two are short-term barriers to progress. I say they are not.

Weight is one of aviation’s biggest enemies particularly on small vehicles. Batteries are expensive, heavy and require tailored control. Autonomy or the semi autonomy, needed to make the economics click is challenging systems engineering orthodoxy. Both tasks require the meticulous diligence of the Wright brothers to get past. No fanfare or flashy investor can push them aside.

Making the absolute most of energy storage technology is essential. Finding the optimal configuration of batteries, transmission and control electrics means iteration and the tolerance of a good handful of failures. The engineering of what’s becoming a system of systems, with the complexity of vehicles and the complexity of traffic management, interacting at great speed demands extensive analysis and testing.

These tasks can be accomplished. Rushing them would be foolish. That’s difficult to resist when everyone wants to be first.

Batteries

We can talk about chemistry. It’s not a strong subject for me. The simple basics, I remember. As far as handling batteries, or at least knowing what they do, I was quite young on first encounter.  

At the back of the farmhouse where I grew up there were several working rooms that that were part of the building. A room we called “egg house” was indeed used to store eggs. That wasn’t its first purpose. In one corner was a copper vat with a small furnace underneath it. I was told this was for sterilising milking machine parts before chemicals took over that role.

On the opposite side of the wide back door corridor was “boot house.” The name was a giveaway as to one of its uses. Boots propped up against the wall. It had a stone mullioned window that looked out on another working room that was part of a later add on. That’s where a shiny stainless-steel milk bulk tank sat filling up most of the space.

Like a lot of obsolete stuff stashed in a corner and then forgotten, eventually they were thrown out. As far as I know. What I speak of is several large round glass jars. They made of thick greenish glass and were about a couple of feet in diameter. Their original purpose was to store sulfuric acid. The acid was an electrolyte used in heavy batteries that were once the backbone of the electrical system of the farm.

My father moved to Goulds Farm in 1938. As I understand it mains electricity didn’t come to the farm until the 1950s. In one of the stone built buildings around the farmyard, there was a single cylinder stationary engine, generator, and DC electric distribution board on the wall. It was like something out of an early Frankenstein movie. Bare metal switches and a couple of round dials for volts and amps. All covered in dust and cobwebs. I never did see the “submarine” lead-acid batteries[1]. I guess they were parts of this early farm electrical system that had a reasonable scrap value and so got sold on.

There were lead-acid batteries in and out of the house in the winter. Heavy tractor batteries often sat in “egg house” charging overnight. Given their cost every little bit of life was squeezed out of them before they were replaced. Some batteries had a second life powering an electric fence.

Now, here we are in 2023. An electrical revolution is underway. It’s fascinating to note some of the objections to electrification. So, wedded to gas and oil that all sorts of spurious arguments get thrown up. Not that there aren’t hazards with each different technology.

Battery technology has advanced at great pace. Chemistry has provided batteries that have huge potential when compared with they predecessor. The race is on to go much further. I’m confident that we’ve a long way to go before every combination and permutation of materials has been exploited for electrical storage. Manufacturing techniques race ahead too.

Lead and acid presented hazards. Ironically, one of them was hydrogen gas emission. In such systems ventilation is a must so that there’s no danger of explosion. Now, hydrogen is heralded as a fuel of the future. Hazards remain but we do get better at managing each and every one.

My message is that electrical technology has both an upside and a downside. Ultimately the upside is much the bigger.

[1] https://uboat.net/articles/id/54