Hydrogen in Aviation

The potential for LH2 (liquid hydrogen) is enormous. That’s matched by the logistical and technical difficulties in exploiting this gas’s great potential. It offers energy for a means of propulsion that is nowhere near as environmentally damaging as existing means.

Society already integrates hazardous liquids and gases into everyday life. Each one has been through several iterations. It has been a rollercoaster. Each one has been at the root of disasters, at one time or another.

  • We use gas for cooking and heating in domestic settings. Periodically explosions demolish buildings. Leaks cannot be ignored. Harm can be done.
  • We use light and heavy oils widely in transport systems. Periodically intense fires burn vehicles. Care in handling is essential. Harm can be done.

Without having to say it, both above harm the environment. The search for non-CO2 emitting ways of flying is urgent. Here, I’m writing about harm to people. Physical harm. The business of aviation safety.

Often the physical harm is not associated with the design of the systems used but to the maintenance of those systems. Naturally, there was a learning curve. If we look at early versions of those systems, fatal accidents and incidents were far more regular. So, here’s the challenge for aviation. How do we skip the dangers of the early learning phase? How do we embed rigorous maintenance practices from day one? Big questions.

On the first one of these, lots of fine minds are engaged in putting together standards and practices that will address good design. If this works, and it will be tested extensively, the chance opens for introduction to service with a great deal of confidence that the main risks will be managed.

On the second of these, there’s not much happening. You might say there’s an element of chicken and egg. The shape and form of future LH2 systems needs much more work before we can think deeply about how they will be maintained.

I think that’s wrong. It’s old-fashioned thinking. As the industry has often practiced, making the systems first and then devising ways of maintaining them while in-service. That’s yesterday’s reasoning.

Making aviation system maintenance the Cinderella in the LH2 world is to invite failure. This is a situation where advancing the consideration of how the in-service realm could work, day by day, is necessary. It’s advantageous.

Here’s my reasons.

  1. There are generic approaches that can be tested without knowing the detailed design. That can take existing learning from other industries, like chemical and space industries, and consider their application in aviation.
  2. Emerging technologies, like machine learning, coupled with large scale modelling can provide ways of simulating the operational environment before it exists. Thereby rapidly testing maintenance practices in a safe way.
  3. It’s imperative to start early given the mountain that needs to be climbed. This is particularly true when it comes to education and training of engineers, flight crew, airport and logistics staff and even administrators.

Everyone wants to accelerate environmentally sustainable solutions. When they do get to be in-service, they will be there for decades. Thus, an investment, now, in study of maintenance systems will pay dividends in the longer term. Remember, early fatal accidents and incidents can kill otherwise sound projects or at least put them back on the drawing board for a long time.

NOTE 1: I didn’t mention Liquefied Petroleum Gas (LPG). It’s in the mix. Another CO2 contributor. LPG containers have pressure relief valves. LH2 containers will likely have pressure relief valves too. That said, venting LPG is a lot more environmentally damaging than LH2. From a safety perspective they can both create explosive conditions in confined spaces. Maintenance staff may not need to carry a canary in a cage, but they will certainly need to carry gas detectors when working on LH2 powered aircraft. Our noses will not do the job.

NOTE 2: Events on the subject: https://www.iata.org/en/events/all/iata-aviation-energy-forum/

https://events.farnboroughinternational.org/aerospace/sustainable-skies-world-summit-2024

2024 ICAO Symposium on Non-CO₂ Aviation Emissions

AAM

This week, I watched an FAAs Advanced Air Mobility (AAM) webinar[1]. The subject was community engagement. AAM could be air taxies but it’s many uses of the new electric aircraft that are becoming a reality. The term eVTOL is used for those aircraft that have the capability of vertical flight. My reflection is that there are several aspects of AAM that need much more attention. Naturally, I’m taking the discussion of what’s going on in the US and thinking about it in relation to the UK.

  • Land Use Planning

Generally, National Aviation Authorities (NAAs) are consultees when it comes to land use planning. They do not determine planning applications. NAAs may well have set out policies and guidance on the subject but they will not be determining the site of vertiports.

It seems to me that there’s little chance that eVTOL aircraft routes will be established without sufficient community consent.  Community engagement has been appropriately recognised as essential. The aspects in play are like those for existing aerodromes. Often for AAM applications proposals are for the use of new locations, hence a concern. Anytime there’s a serious proposal for a new aerodrome the opposition is up and running long before the proposers have got their act together.

The subject is complicated by the mix of public and private ownership of infrastructure. If the intention is to interconnect AAM with other transport services (bus/train/boat/road), then complicated agreements are going to be inevitable. It’s not just about buildings and tarmac but having a trained workforce available is a location dependent issue too.

  • Business Models

I’m about to sound as if I’m securitising the plans of a contestant on The Apprentice[2]. There are plenty of way of losing money in commercial aviation. It’s been a well-practiced art over the years. Great ideas fall by the wayside after huge amounts of money have been expended. Customers are key. People must want to fly the routes available, time and time again. And like London Black Cabs be prepared to pay the fare. Given the relatively small cabin sizes that are on offer these people are likely to be moderately prosperous groups or individuals.

Regular schedules air services can produce a reliable income. Airport-to-airport connections seem like a good bet. Problem there is the conveyancing of weighty luggage. Busy airspace could be a challenge too. That said, with tens of thousands of people at both ends of a route, no doubt some people will choose a comfortable, speedy direct connection.

There are good possibilities for major event driven transport services. Getting to and from a motor race or horse race event or a concert or festival can be hell when tens of thousands of people are all trying to get to and from a location or venue. The numbers may well stack-up to make eVTOL a premium way of dodging the crowds in an environmentally sound way.

  • Batteries, Batteries, Batteries

Everything in respect of aircraft performance depends on power density. How much oomph can you get out of a small, light weigh physical space. Recharge and go. Do it, again and again. It’s as simple as that. Not only that but aircraft battery packs must be affordable and available. Whizzy technology that cost a mountain of cash and can only be use for a few hundred cycles is no use at all.

Power distribution infrastructure must be up to the job too. Who will pay for this is up for grabs. There’s a good case for public funding given that there are multiple uses of enhanced electrical supply. Given the monopolistic nature of power generation and distribution this will not be easy or quick.

That’s only three issues that require a great deal of attention. Not the attention of researchers. Not the attention of academics, Not the attention of political policy wonks. Connecting entrepreneurs and public bodies needs practical stimulus. The possibilities are exciting.


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

[2] https://www.independent.co.uk/arts-entertainment/tv/news/the-apprentice-2024-winner-pies-b2531331.html

Highways

The last time I visited the city of Baltimore was in 2012. It was the location of the annual seminar of the International Society of Air Safety Investigators (ISASI)[1]. That was when I was representing the European Aviation Safety Agency (EASA) at such international events.

The relationship between aviation accident investigators and regulators are generally cordial. There’s a great deal of work that requires cooperation and good communication. That’s not to say that the relationships between these two vital parts of national and international aviation safety systems is easy. It’s not. My reflection on that fact is that a degree of constructive tension is inevitable and not always a bad thing.

One way of seeing that relationship is that the primary role of an investigator is to make findings to prevent the repeat of a given accident. For a regulator the primary role is to ensure the complete aviation system runs safely on a day-to-day basis. Both organisations have the public interest at their heart. However, their operational context and perspective are different.

Firstly, my condolence to the families and friends of those who perished because of the Francis Scott Key Bridge accident[2]. The collapse victims and survivors had no way of knowing what was to happen on the night of the accident. I use the word “accident”. This was not an act of God, as some commentators would have it. The safety risks involved in the operation of the port in Baltimore could be anticipated.

In the US there’s an independent federal agency that is tasked with such major investigations. Interestingly, it’s the same one as that investigates aviation accidents and incidents. The National Transportation Safety Board (NTSB) is a multi-modal organisation. That is something we don’t have in the UK. Also, we don’t have a divide between federal and state organisations. Since in the UK we have separate independent national Air, Marine and Rail investigation agencies that cover the country (England, Scotland, Wales, and Northern Ireland).

I will not comment on the accident sequence or causes. It’s the job of an independent investigation to arrive at the technical facts. Recommendations will flow from that investigation.

Where a comment may be in order is that there are many locations across the globe where a vital piece of infrastructure, like a bridge being struck by a large container ship is a possibility. I’d generalise that further. When infrastructure that was designed a built 50 years ago meets modern day operational stress there’s going to be vulnerabilities. Yes, the aviation system is not immune from this fact too. It wasn’t so long ago when I read of PDP-11 computer hardware used for air traffic control (now, historic artifacts[3]). I’m sure there are still Boeing 747s, and alike that need floppy disks to update their hardware.

So, the wider subject is operational legacy systems working with modern systems. This is the interface that requires particular care. The safety risk appetite and exposure in the 1970s/80s was quite different from that which we expect upheld today.

Unfortunately, society is often reluctant to revisit this subject. Additionally, there’s the incentive to go for quick fixes and sweating assets. The example I have in mind the so-called “smart motorways” in the UK[4]. I don’t know how many fatalities can be linked to “smart motorways” but I’m sure, sadly, it’s too many.

POST: In time-off I enjoyed a trip out to Fort McHenry and a walk around the places where The Wire was filmed. The Fort McHenry story is interesting given its role in times of war. The British burnt the White House but the navy didn’t get past Fort McHenry in 1812.


[1] https://www.isasi.org/

[2] https://www.bbc.co.uk/news/av/world-us-canada-68661318

[3] https://www.tnmoc.org/air-traffic-control

[4] https://www.gov.uk/government/speeches/plans-for-new-smart-motorways-cancelled

Safety Culture

Civil aviation remains an extremely safe means of transport. That said, any form of complacency must be addressed. It’s reassuring to say the past has been great but what passengers are most concerned about is their next flight. To have the confidence, to think it irrational to be afraid of flying, to look forward to the next journey, we must have a safe aviation system everywhere and all the time.

For any widespread system that has complex interactions between people and technology there’s never a moment when it can be taken for granted. We count the numbers, but safety is not purely an absence of accidents and incidents. Numbers counted are always past events. They have no direct causal influence on what happens next. True, there are factors in past accidents and incidents that will pop up again and again, but every flight is a unique event.

One of my colleagues who was a senior captain in a major international airline always remined me of the fact that, for all that has gone before, flight risk begins the moment an aircraft sets off down the runway with the intention getting to a destination. When the wheels lift off the ground there’s no stopping time. Reliant on the diligence, vigilance, and integrity of everyone who made a flight possible, flight risk is then in the hands of the crew.

The above is perhaps why we talk a lot about safety culture. The whole aviation family has a role to play. The care, professionalism, and watchfulness of every person makes a difference.

This can extend from the drafting of a new component for a new design, that a decade down the line. ends up as a part of an aircraft just about to leave the gate. This can go back to a flight instructors’ message that emphasised a key point back in a pilot’s initial training, years ago. This can encompass the extra care a couple of air traffic controllers took as they changed shifts.

Safety culture comes from caring. It’s that heightened awareness of the consequence of actions. Being alert to possibilities. Both the good kind, and the bad.

Safety culture is a matter for both individuals and organisations. One without the other doesn’t work. Placing a vigilant person in an organisation that doesn’t care is much like placing a reckless person in an organisation that does care. Although this is what I’ve written, systemic problems are likely the ones that are most likely to cause negative outcomes. This is where the role of management has the most impact.

Culture exists in context. When the ways people interact are determined by practices, processes, and procedures there’s an obligation on management to ensure they fit the bill. Drivers are often economic. In a commercial operation that’s no surprise. It’s when that driver displaces the safety imperative then safety suffers. There’s been several occurrences of this negative phenomena in the last year.

Safety

A considerable part of my working life has been in the analysis of occurrence data and trying to distiller the factors that cause or contribute to accidents and incidents. It’s rewarding work. An opportunity to influence that has value. I subscribe to the dictum that everything we do should contribute to continuous improvement in safety. Not zero risk but to keep risks low and under control, in so much as it’s possible.

Aviation only has the great success that it does because it’s a safe industry. For mass transport by air to be viable across the globe, the public must have confidence in it. They are willing to place whole families in the care of an airline to get them from London Gatwick to the Canary Islands for something that is not a physical need[1]. Regular leisure travel is a luxury and a privilege. We live in a fortunate age when overseas travel can be afforded by a large section of the population.

I watched the recent documentary on flight MH370. It’s sobering. It’s a story of the loss of a large aircraft that still seems unbelievable in this era. It’s the 10th anniversary of the disappearance of Malaysia Airlines flight MH 370 on 8 March 2014. The loss is a stark reminder that the oceans cover over 70% of the surface of the Earth. We know less about parts of the oceans than we do about the surface of Mars. The depths remain uncharted.

With a paucity of evidence theories have taken root. Official investigation reports are available. However, mystery remains particularly when it comes to answering the question – why? If as the documentary suggest, the willful actions of the pilot-in-command brought about the fatal outcome then there’s little to tell of his motivation. Highlighting the tragic Germanwings aviation accident doesn’t offer anything other than a context to possibilities. Evidence that the MH370 pilot-in-command was suicidal is scant. Although his known actions do not make much sense without invoking such a theory. Understanding what drives people to purposefully undertake unpredictable and irrational actions is an area of study that always needs attention.

Yesterday, Sunday, I was remined that threats to safety can come out of nowhere. Seemingly routine car journeys can suddenly take a turn in an unexpected direction. We become subject to the fates. I use the word “fate” but I’m not a great believer in the fates. Randomness plays a part but, in this case, yesterday afternoon, I was the subject to the foolish and negligent actions of another car driver.

On a wet “B” road that climbs and descends over chalk hills, there are triangular road signs that warn drivers that the road is a high risk road. What the signs are referring to is the wildlife. A deer may leap out of a roadside hedge at great speed and misjudge the road traffic. In fact, I did see an unfortunate small dead deer at the kerbside.

What happened to me had a purely human cause. Naturally, I would call it complete idiocy. Coming over the brow of a hill, and descending, suddenly there was 4 bright headlights ahead. On a narrow country road, with overgrown banks on either side that was a scary sight. Nowhere to go. In a faction of a second the overtaking car coming up the hill veered back into the right-hand lane. No more than a couple of yards in front of my car. Fortunately, there was no collision. What on earth was the motivation of that driver? Overtaking, at high speed, approaching the brow of a hill, on a wet county road, in poor light, sheer madness. A small red car, overtaking a larger car.

In safety work this points to the most difficult situations to understand. The irrational, or stupid or reckless, or carless human drives that are hard to design out of systems. How do we take effective corrective action when one person’s risk threshold is so very much higher than normal or acceptable? The problem with saying – take their licence away – is that this is always reactive. After a negative event. Maybe even a fatal one.


[1] https://www.simplypsychology.org/maslow.html

The River

What a contrast. From plus 12 earlier in the week to minus 2. There’s a sheet of white frost covering the fields this morning. The flood water shimmers in the morning sun. Not cold enough to ice over as the water tries to escape back to the river.

I get woken-up to the sound of the 18 or so Canadian Geese who make the boggy grassland next to the River Lambourn[1] their feeding ground. I can understand how they get so big as they graze from dawn to dusk. Their take-off from the water is a long one as they flap furiously to get their great mass airborne. It’s quite a sight as they fly in formation.

These formidable geese are not alone. A few Mallards stray into their territory. For the most part they all seem to get along fine. Plenty of food for everyone. Little grass islands form where the water swirls around. I named one of them duck island.

The geology here is Valley Gravel according to the council’s local plan. I’m not sure what that means but I guess the riverbank will drain fast when the flood water abates. Standing on the ancient bridge on the Oxford Road, I can see that the river Lambourn is shallow and fast running.

I say ancient bridge given the Priory on the other side of the river. The north side. That bridge site certainly dates to the 16th Century. The road must have a long history as it leaves Newbury town and enters the village and environs of the castle of Donnington[2].

I’m imagining the role the area played in the 17th Century. The site of the English Civil War battle, the Second Battle of Newbury. The castle was held by Royalists. It was under siege from the Roundheads camped on this side of the river. The south side.

From what I’ve read so far, the siege was a long one. When it was broken, the defending forces were allowed to escape in honour of the brave fight that they had put up. For whatever reason, in 1646, Parliament voted to demolish the canon damaged castle. Today, only the grounds and gatehouse of the castle remains standing.

It’s nice to be able to look out of my kitchen window and see on the hill such a significant part of English history. The ruin sits on the horizon looking north. Often both the rising and setting sun light it up.


[1] https://www.kennetcatchment.org/catchment/lambourn/

[2] https://www.english-heritage.org.uk/visit/places/donnington-castle/

Hero to Zero

How to go hero to zero in 30 seconds. I hired a large van for a week. From a company that had done a good job for me in the past. I had a lot of confidence in their offer. Fine their location had changed. Once the company was in Redhill in Surrey. The office was easy walking distance from my house. Now, they have an office in the small town of Dorking. So, it’s a short train ride away.

The Surrey towns of Reigate and Dorking are separated by about 8 miles. They both sit under the North Downs. The main A25 road links the two towns and probably has done for centuries. Without delays that’s about 20 minutes door to door. Normally.

Moving house is one of the most stressful events in life. That’s what we are currently about. It’s a move further West. It’s a move to take us away from the dreadful mess that the M25 motorway has become in the last couple of decades. From 3 lanes to 4 lanes, it’s got worse not better. Why do we think we can build our way out of traffic jams?

So, for the last week I’ve been driving a large van backwards and forwards from Reigate to Newbury. The hired van was everything I needed. Only about 7000 miles on the clock and plenty of space. If I had one niggle it was the need for a reversing camera. Beepers are just not enough.

The rental company, named after a famous starship, that went where no man has gone before, was topping my hero list. What I needed when I needed it and at a good price. With only a minor inconvenience when picking-up and dropping-off. Or, so I though.

Named storms are popular this year. Driving through one of them is no fun. Traffic slows and the inevitable bump or blown down tree holds everyone up. Nothing moves the way it does on a sunny day. It’s times like these when planning can be more guess work than science. Whatever a satnav calculates.

In my wisdom I thought – let’s try a cross country route home. Get off the habit of using the M4 and M25 motorways. Programmed the satnav and away I went. Leaving Newbury lunchtime thinking that getting the van back to the rental company by 5pm would be no sweat.

My route took me from Newbury to Basingstoke and then to the M3 motorway. Then towards London and coming off the motorway to take the Blackwater valley route to the Hogs Back. Those references are for Surrey residents because they will know what I’m talking about. Trundling along the Hogs Back I then hit the main A3 into Guildford. Now, my logic went like this. I’ll avoid the Wisley junction reconstruction or permanent hold-up by taking the main A25 all the way back to Reigate. So, I did. All going well until I reached the closure of that main road[1]. At that point I was committed to getting back to Reigate to unload my packing boxes. Can’t carry them on the train.

When road closures happen in Surrey, at rush hour the mess is insane. The diversion I took up over the North Downs and back down again onto the A217 road was miserably slow. What’s worse is that I knew I had to turn around and go back to Dorking to return the rental van. The clock was ticking. 

Anyway, enduring the tedious frustration of doing a short journey, by miles, over a long time wore away at my generally cheerful disposition. Thus, I was glad to get back to the rental company office in Dorking only about 20 minutes late, after 5pm.

I was committed to leaving the van and taking the train home. That trading estate rental office closes at 5pm. A dark and empty parking space was free, but nowhere could I see anywhere to drop the van’s keys? It seems inconceivable to me that an international rental company would not have a key drop. I searched the plot. There was nowhere. All there was an unhelpful notice on the door of the company’s office. So, I locked the van, kept the keys, and walked to the train station. Idea being to return the keys as soon as the office reopened next morning. Seemed logical.

Next morning, I got up early and set off for Dorking. Sadly, the closure of the A25 was still an on-going problem. All the rush hour traffic had the same issue to contend with on their way to work. This is why I’m happy to be leaving Surrey. A short journey turns into a tedious trek at the drop of a hat. The county’s roads are unable to cope with the levels of traffic. But, as planned I get to the Dorking office of the rental company at 8am when the office opened. Enterprise were still in my hero category as the van was inspected and the mileage typed into a company handheld device. I would have given them 10 out of 10. Job done.

In the warm, in the rental office, just as I thought the paperwork had been done – hold on a moment it’s charging you an extra day for a late return. Computers do these sorts of things. They have no awareness of the world other than the numbers they crunch. Unthinking beasts.

I’ll have a word with my manager. Those were the words spoken. Me being me, I though that’ll be no problem given the effort I’ve made to return the keys. Let’s face it if there was a drop box last night they would be doing exactly as they are now. Van returned in 100% condition and keys in hand.

Then to my surprise the office manager, who insisted on using my first name, says no we are going to have to change you for an extra day. In 30 seconds, Enterprise went from being my number one van rental choice to a huge bottomless zero. I argued the logic of my position and the unforeseen local conditions that prevailed. I outlined the best efforts that I’d made.

Then I got the most galling response – it’s company policy. I suggested that the office manager might use a little judgement or digression in this case. I hit nothing but a stone wall. The computer says so. The charge is the charge. No deviation possible. It’s astonishing that an office manager can’t make a reasonable judgement. If that’s Enterprise company policy I don’t want that kind of service. Other companies are available.

What didn’t help either was the prospect of the return journey in my car knowing that the main Reigate Road was closed. As per my prediction the short journey home again was awful.

Hero to zero – Enterprise. Hero to zero in 30-seconds. My future business will go elsewhere.

POST: This quote from the Enterprise website is meaningless. “We understand that things don’t always go to plan so, if you are running a few minutes late we won’t charge you for an extra day, we give you a grace period of up to 29 minutes to cover unforeseen delays“.

Part 2.

Change is always welcome. The above rental made me think twice about using the services of Enterprise. In my new town, they have a much more easy to get to office. It’s a 20 minute walk from the house. So, I ate my pride and booked a big van for a couple of days. The job was much the same as before. It’s all part of a house move that is lasting far too long.

Here I am renting from Enterprise Rent-A-Car once more. This time I’ll drop the label “zero”. From picking up the van to dropping it off everything worked as it should. My large commercial van took a heavy book case and a king sized bed from Reigate to Newbury without a hitch.


[1] https://www.getsurrey.co.uk/news/surrey-news/live-a25-traffic-updates-after-28495765

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.