Category: Regulation

North Atlantic Airspace and Trade

Back to Greenland. A cold, cold land of mountains, snow, and ice. Next door to Iceland. I agree, the naming of places doesn’t make a lot of sense. Perhaps Greenland should be Iceland. And Iceland should be Fireland. Just under the Earth’s crust molten rock sits. It waits for the opportunity to come to the surface.

Iceland is highly volcanic. A land that’s growing and ripping itself apart at the same time. It sits on the Mid Atlantic Ridge[1]. The North American and Eurasian plates are moving away along the line of the Mid Atlantic Ridge. This is global geography. Not economic or social geography but the physical stuff. Ironically, considering the News, the North American plate is moving westward, and the Eurasian plate is moving eastward. Don’t worry this movement is slow.

When flying it’s usually faster to travel East than it is to travel West. A fast-moving band of air known as the jet stream[2] whizzes across the Atlantic. It represents that boundary between the cold polar air and the warmer southern air. The airspace of the North Atlantic (NAT)[3], which links two great continents is busy. There are seven Oceanic Control Areas (OCAs). US, Canada, Norway, Greenland (Denmark), Iceland, Ireland, and The Azores (Portugal) all have a role to play.

Back in the mid-1990s, I worked on Reduced Vertical Separation Minimum (RVSM). Looking at aircraft altimetry to determine what accuracy requirements would permit a change in separation standards. These standards, and the manual that goes with them are the responsibility of the ICAO European and North Atlantic Office in Paris. Yes, that’s Paris, France.

Given the arguments put forward by US President Trump, and his supporters, it does seem surprising that only Greenland is of interest. In aviation what happens across the North Atlantic, all the way up to the North Pole, depends on seven sovereign countries working together.

I’d say if there’s reason to be suspicious or concerned about one of them in terms of their capability, security measures, or vulnerability, what about the rest?

Whether goods or travellers go by air or by sea, across the Northern Atlantic, the success of their journey depends on communication, collaboration, and cooperation between sovereign countries. Without conflict of a major kind, it would be difficult for one country to take over that space.

I also did work on guidance material for Polar Navigation[4]. In the polar region, magnetic heading is unreliable or useless for aircraft navigation. Thus, it’s important to have other suitable accurate sources of navigation to be able to plan a flight over the top of the Earth. Aircraft communication is an issue too.

Russian airspace may be closed but this does not stop airlines flying over the pole. Finnair goes to Japan over the North pole[5]. Meticulous planning is needed to make theses flights safe.

Anyway, my point is that much of the commotion over Greenland’s fate tends to ignore the complexities of international trade and travel. At all stages international standards, communication, collaboration, and cooperation are essential regardless of who you are.

[1] https://www.geolsoc.org.uk/Plate-Tectonics/Chap3-Plate-Margins/Divergent/Mid-Atlantic-Ridge.html

[2] https://weather.metoffice.gov.uk/learn-about/weather/types-of-weather/wind/what-is-the-jet-stream

[3] https://skybrary.aero/articles/north-atlantic-operations-airspace

[4] https://www.faa.gov/sites/faa.gov/files/2022-11/Polar_Route_Operations.pdf

[5] https://www.finnair.com/gb-en/bluewings/world-of-finnair/flying-over-the-north-pole–well-planned-is-half-done–2557656

The Digital Dilemma: On Youth

Every modern technology challenges us all. Technologies’ relentless path is unstoppable. Technology inevitable is a two-edged sword (good and bad). Not everyone will accept these statements. This is my observation of the last 50-years in the UK.

1976 was an incredible year. It’s being celebrated as the year of Punk Rock. That’s just one snip out of the scrapbook. In fact, the music scene was over briming with diversity in that year. Low-cost microprocessors were coming on to the market. Forward thinking innovators, like Sir Clive Sinclair[1] were thinking about how to put these into the hands of everyday people. Trade Unions were signalling concern that this technological revolution would mean the loss of millions of white-collar jobs. Politicians ran around in fear of a severe threat to the established social order.

Let’s just say, there was no less a public clamour about how to react to the transformations that were coming down the road as there is here in 2026. What is a 16-year-old to make of all this at any time? I was 16 in 1976. Now, what’s it like to be 16 faced with current relentless and often troublesome pressure of social media?

That’s one phenomenon that I didn’t have to deal with as an energetic engineering apprentice with the thrust for speed and motorcycles. That said, all the stuff we hate about social media, bulling, harassment, intimidation, hurt, and suffering were still ever present in society.

My starting point is that banning things is to be avoided if there’s a better way. It’s profoundly illiberal to reach for the law to ban as the only approach to problem solving. My caveat. If there’s evidence of systematic harms being caused to a vulnerable population then a ban may be inevitable. In this I can cite the restrictions that are placed on young drivers and motorcyclists. Without legislation restricting activities our society cannot accept the resulting death toll.

Age limits are part of a civilised society. So, a dilemma exists. What level of harm triggers a ban? That is assuming that an enforceable ban is the most effective way of achieving reduced harm. In reality, a ban by law does not aways work. Either people find a way around it or it turns out to be unenforceable. It can also become smothered in processes and procedures to be rendered useless. Exceptions and qualifications.

How about banning mobile phones or social media for young people? That’s two quite different moves.

Mobile phones are part of the digital landscape. No one should go through future education without a necessary exposure and grounding in the digital world. It’s their world. It’s not going away. Social media is different, but it’s a nebulous product. It’s not so easy to sit down and write a useful and workable definition of what’s included in social media. Even if a law is written about social media, within a brief time it will turn into something different. It’s a combination of communications technologies.

What we do need is regulation to minimise harm done. That needs to be agile but comprehensive. A most perplexing task. Up until now, regulation is the digital realm has been ad-hoc and focused separately on application areas. Much more work is needed.

[1] https://www.theguardian.com/technology/2021/sep/16/home-computing-pioneer-sir-clive-sinclair-dies-aged-81

Reflections: Decade Since Brexit

Ten years ago, the world was a different place. “The past is a foreign country”. That bit is true. I still had an apartment is Cologne. Although, that phase of my life was coming to an end. The first two months of 2016 were about wrapping up the loose ends. Deregistering, as is the way when leaving German. Coming to a settlement with my landlord. Packing up and moving back to the UK. Saying goodbye to my regular haunts. Saying goodbye to a wonderful city.

Being an astute watcher of the UK political landscape, I could see that a vail of discontent was hovering over my homeland. There was a frustration amongst those in government. Can this endless debate about the UK’s place in Europe be resolved? Can it be knocked on the head once and for all?

The UK Prime Minister (PM), David Cameron was sitting on a small majority after the General Election of 2015. Conservatives were nervous but wanting to retake the agenda by trying to put to bed the Europe question. As it turns out Cameron made a grave mistake. He entertained the notion of a national referendum to advise the government on what to do next. An act that was uncommon to the UK’s normal way of doing business.

Probably one of the most foolish political acts a UK PM has taken in a very long time. Naturally, in 2016 few had an idea of the chaos that would be unleashed by this attempt at quelling internal Conservative Party wranglings. It’s true that these wranglings were not new. Just perpetual or should I say perennial.

My return to the UK wasn’t a celebration of the achievements we had made in Europe. That collectively we were in a much better place than before. That we had build something to be proud of. No, it was more of a submersion into an angry and emotional row. A heated row littered with misinformation and just simple run of the mill nonsense.

As I write this it’s plainly evident that the experiment, that was Brexit, damaged the country. Not only that but it resolved nothing. Instead of settling an issue it stirred up animosities and tribal conflicts. Today’s soap opera on the right-wing of UK politics is evidence enough of unresolved rivalries and ideological divides. An insular mindset and unresolvable differences.

In January 2016, there was no practical plan to leave the European Union (EU). It was almost unthinkable. Surely sensibility would prevail. That’s the political trap that Cameron fell into. Dare I say an almighty display of his cultured public-school arrogance. Convinced that if arguments were put to the public authoritatively, logically and rationally a remain result would be a simple foregone conclusion. That the political risks were manageable. That’s how wrong a man in power can be.

Moving on a decade. Yes, it is that long. Lots of water under the bridge. To the idiots on stage now, I say: the UK is not broken. It surely isn’t in as good a place as it could be. Had Brexit not taken place then we’d all be much more prosperous. We would be contenting with continuity. That includes squabbling right-wingers, but the fact is that they will never ever desist.

What’s sad is that the opinion polls say that a significant number of people want more of the same. More nonsense from the people who brought us Brexit in the first place. More from those doomsters and has-beens who complain without any realistic ideas of how to solve problems. A karnival of conmen.

Now, in the UK we have two right leaning political parties that are almost the same. One being the Conservatives and the other Reform. Each trying to outdo each other to attract the same voters. Stirring up discontent wherever they can find it. Projecting a negative image of the country whenever they speak. Feuding in a way that should convince people that neither is fit to govern.

POST: These folk explain it all in clay. Claysplained (@claysplained) • Instagram photos and videos

What to Expect

What’s going to happen in 2026? Predictions are always more a matter for the ancient Greek Gods than mere mortals but here goes. For the world of civil aviation:

Global air traffic will continue to grow,

Large hub airports will continue to expand,

Commercial air travel safety improvement will stagnate,

Electric air taxis will become a reality,

Pontification about the next generation of single aisle aircraft will continue,

Impacts of climate change will increase,

Blows to climate action will be slowly reversed,

AI breakthroughs will continue but adoption will slow,

Drone technology will advance at pace,

More airspace will be subject to conflict warnings,

Volatility and instability will plague the commercial manufacturing sector,

Regulatory harmonisation will struggle to advance,

And for certain, the United States will formally mark its 250th birthday.

Some pluses and some minuses. It will not be a dull year.

Globally the future of civil aviation is a healthy one. Propensity to travel is deeply ingrained in our ideas of development and growth. The complexities of adopting innovations are not new to the aviation industry. What may be new is finding a workforce that is as captivated by aviation as past generations. To train, induct them and offer them the attractive careers paths that compete with other fields. Anticipation of potential technology transformations often lacks a vision for the people who will make them possible.

Evolution of

Looking at the weird and wonderful picture of an unlikely lump of materials with wires hanging off, it’s easy to dismiss. A laboratory experiment that drew together theory and practice to produce a brand-new electrical device. Not something that occurred in nature. Even though its behaviour is of that of materials in nature.

Certainly, the implications of this experiment could not have been fully understood at the time. That said, progress to industrialise this new device was rapid. By the time of 1956, the “inventors” were awarded a Nobel Prize in Physics. In 1947, the transistor, was a fruitful combination of science and practical thinking in a laboratory where that was encouraged.

Bell Laboratories, given its history was a logical place for arguably the most important modern invention to be first put together. Arguing over “most important” there are several matters to consider. For one, how universal, how ubiquitous would this humble device become? Would it have a dramatic impact of everyday life for decades after its invention? Would it change every aspect of human organisation? Would its design, development and production become essential to the world? The simple answer – yes.

My first encounter with the germanium transistor was as a boy in the 1970s. Stripping them out of junked radios and record player amplifiers. Building simple circuits. PNP germanium junction transistors were tiny tin cans with three colour coded leads. With a soldering iron and a primitive breadboard there were plenty of designs in popular magazines to copy. Now, this is considered as vintage technology since germanium has long given way to silicon.

The clock, the radio, the bathroom scales, my shaver, my toothbrush, even in my bathroom every appliance contains circuits that are transistor based. It would be possible to live without some of these items, or at least substitute them with the mechanical versions, but that’s only for eccentrics, museums and heritage houses.

In 1947, the prototype transistor was on a bench being studied. It came along too late to play a part in the huge leap forward technology made during World War II. What became apparent is that the technology that had been developed using thermionic valves was convertible into a transistor-based versions. Size shrank and performance improved dramatically.

What’s my message? It’s another way of looking at so called artificial intelligence. Technology doesn’t come out of the blue. It doesn’t plot new pathways in the first years of its invention. It often takes things we already do and speeds them up or makes them cheaper or makes them more lethal.

We create another stepping stone upon which further developments can take place. So, maybe there is a South Sea Bubble about to burst. Much of the frantic investment that has taken place assumes that artificial intelligence is of itself a wonder. Let’s say it isn’t. The wonder is what it will allow us to do. Much of that side of the coin is a massive unknown. Much as the three who invented the solid-state transistor could not have envisaged tens of millions of them stuffed inside every computer chip on the planet.

Vintage germanium components are sough after by specialists. Apparently, audio amplifiers sound better to those who are sensitive to certain musical tones. Artificial intelligence has a proliferation of applications. A lot are gimmicks. Some are extremely serious.

POST: It’s often the boring stuff that can best be improved rapidly, note: One real reason AI isn’t delivering: Meatbags in manglement • The Register

Swearing in English Culture

I do suppose that it’s my country upbringing, but that’s not entirely so. There was a set of opposing tensions that spread through society in the 1960s as much as they did in the 1660s.

On the one side there’s the authenticity of the country born and bread son or daughter of the soil in honest toil. That image of the rural artisan, painted by a famous artist, struggling with the elements to put bread on the table wasn’t as clean and tidy as the artist depicted.

On the other hand, was a spirit of bettering oneself. Elevation from the base worker day reality, up to one’s knees in muck, and practicalities of country life. Middle class, educated entrepreneurial, energies directed at improvement and modernisation.

An indicator of the side of the line that was most natural for a person was the use of langauage. Another might be the seriousness with which a Sunday church sermon was listened to. Another could be the frequency of evenings spent propping up the bar in the village pub.

Here my focus is on language. I’m of a generation who was told off for swearing. Whether at home, school or most social situations. This idea of self-improvement and good manners was handed down. It didn’t just spring from our parents’ ambitions. There was pressure to behave.

To suggest that colourful swearing didn’t happen was far from the truth. Even the highest minded tended to shift their disposition depended on the situation. Afterall, if I have had a calf stood on my toe or lost a wellington boot in deep cold mud it’s unlikely that my exclamation would have been – oh dear! that was jolly inconvenient.

Swear words are a constant. What continues to change is the meaning and level of offense that each one has attached. Casual obscenities that were thrown about like confetti may now be totally out of bounds. Calling someone a “bastard” in past times might almost have been considered a term of endearment.

Campaigners rail against suppressing free speech. Regulating what can be said. Rightly so, in most cases. That said, it’s rare that common place langauage is what such campaigners wish to protect. Even the traditional mundane ones are converted into softer tones to avoid offence.

If I think back to my childhood and market days in towns like Sturminster Newton in Dorset, then a great deal of English culture has been lost. Some may say thank God for progress. For me, the rural landscape isn’t as colourful or characterful as it once was, but what do I know?

Don’t read me wrong. I’m not calling for expletives and offensive words to spill out of every page or be heard up and down the high street. Social media is full of grossly offensive nastiness.

That’s part of my point. Authentic swearing doesn’t have to be used as a weapon. Yes, swearing in the 17th century was often used that way. Today, it’s better used as emphasis, exaggeration or an expression of despair. Like a valve on the lid of a pressure cooker, the occasional use of a rude word is a manner of relief. I’m sure Shakespeare would approve. Even he was censored.

As an expression of despair, we do need everyday tools to hand. If that’s the lively use of traditional langauage then so be it. For those who are offended please look at the bigger picture.

Age Restrictions

Inevitably whenever there’s a decision as to what is age-appropriate one’s own experience comes to the fore. The experiment that is going on in Australia is one to watch. That country has taken a step towards the regulation of social media that provides defined limits. From zero to age 16 there’s to be a ban, or a restriction as the more diplomatic commentators say. One discussion could be about the whole necessity, and possible effectiveness of a ban on social media and another about the age limit that has been set.

This is one of those debates where there are good cases to be made on both sides. I could start by citing examples of harm caused, in particular cases, of social media use by children. That would reinforce a compelling argument for restrictions by law.

Alternatively, looking at the subject in the round, I could wonder at the position of young people first encountering an avalanche of social media on the day of their 16th birthday. Or the creativeness of young people in finding ways to evade a punitive law.

For me, my 16th birthday was a day of great liberation. Growing up in the countryside has lots of advantages. The downside is the effort needed to get anywhere beyond walking distance. No buses. No trains. Just a pushbike. Miles of country lanes, green fields and distant villages.

No demanding, distracting all-encompassing digital paraphernalia. Maybe a radio, cassette recorder and a pile of vinyl records. For me a couple of beaten-up cars and motorcycles too. As per the famous four Yorkshiremen sketch: try telling that to the kids of today.

Yes, my 16th birthday was a day of great liberation. That because of the law. I wasn’t alone. It was there for every schoolboy who could afford one. Shiny in the showrooms. Names like: Fantic, Gilera, Garelli, Yamaha, Suzuki and Puch, were all on our list of wants.

In December 1971, the British Government create legislation that restricted 16-year-olds to 50cc mopeds (motorcycles with pedal assistance). This was a worthy effort to improve road safety and reduce the carnage of motorcycle accidents. What was unexpected was the frenzy of innovation that this well-meaning law triggered. Motorcycle manufacturers set to their drawing boards and radically transformed the moped. I do mean radically.

I came in at the end of this era. By early 1976 manufactures had squeezed every drop of performance that was possible out of a mere 50cc engine. Designs had gone from uncomfortable, sluggish commuter bikes that would feel embarrassed to own, to sporty fast racing machines that were extremely desirable.

Ah, the unintended consequences of worthy legislation. For me this was wonderful. It opened a whole new vista and introduced me to one or two roadside hedges. Waiting for me on my 16th birthday was one of the best. A Puch Grand Prix Special. In black and gold, this really was a fast and refined two-stroke machine. Even with cast alloy wheels and a front disk brake, which was whizzy for the time. Racing along the main A30 the bikes gearing was such that I went fastest downhill, while my mates Garelli overtook me going up the hills.

What can I say? When it comes to age-appropriate the results may not be what is intended.

Note: Reference: Funky Mopeds! The 1970s sports moped phenomenon. Richard Skelton. Veloce Publishing. ISBN 13 978-1-84584-078-5  www.veloce.co.uk

Civilization’s Edge

Civilizations rise and fall. That’s not new in the human experience of the last couple of thousand years. One of the causes of failure is an encounter with an entirely unexpected threat. When I say “unexpected” I mean unprepared for threat. Then finding that the defences that have been constructed fall simply and quickly because they didn’t anticipate that threat.

Another reason for failure is a perpetual human characteristic. Arrogance. Everyday imagining that the pinnacle of achievement is – now. Look how smart we are in the 21st Century. Capable, Superman like, of leaping so far ahead of our forefathers.

I’m a child of the analogue age. I was born into the space age. What that brought us, by necessity, was the digital computer in all its myriads of forms. Yet, from day one, it’s no better that a mass of fast switches. Ones and noughts. Nothing more. Nothing less.

With miniaturisation and an understanding of how materials work a massive, global, interconnected digital system, called the INTERNET, has been constructed. It’s flexibility and utility are undeniable. Its extended human capabilities way beyond that of past generations.

Now, I can start a sentence with “however” or “but” or despite this fact. The whole enterprise is still an unfathomable, dynamic number of ones and noughts.

There’s a kind of vulnerability that is elemental. Whatever might be written about powerful Artificial Intelligence (AI) systems it’s fair to say that the “A” is entirely accurate but the “I” is a bit of a myth. Mimicking intelligence is more the order of the day. That does make people shudder because that mimicking is so fast and draws on a massive amount of information. Seemingly that surpasses human capabilities. It doesn’t.

I write not of the machines that we have today but of those to come. I’ll resist the mention of the number 42. What’s happening is an acceleration of developments. These highly versatile tools that are permeating every aspect of life are not frozen in time. They overhaul themselves on a regular basis. What comes next is indeed machines that make machines. Algorithms that write algorithms.

Humanity is unprepared for the emergence of an intelligence that genuinely fits that bill. The whole idea of sovereignty and human autonomy might go out of the window. The ability to exercise control over where we are going is lost.

There are a lot of wealthy folks who are of a libertarian frame of mind who don’t seem too concerned about this race to the point of loss of control. This could be an expression of arrogance or ignorance or both. It could be the ultimate expression of short-termism.

It’s going to require real effort to hang on to democratic systems where we all have a stake in the direction of travel of our society. Money buys influence. Now, that influence is adverse to the idea of trying to regulate or moderate the advance of technology.

Civilizations rise and fall. Are we racing towards a cliff edge? Put aside climate change for a moment. Stop me from any tendance to doom-monger. My thought is that a comfortable, stable, prosperous society needs regulator instruments that work to mitigate threats. Let’s not be persuaded to ignore that reality.

UK’s Digital Dependency

Under the title of “Culture” The Guardian newspaper offered an article that caught my eye this weekend. The author, Tim Wu was offering a point of view about the economic landscape that we inhabit in Britain. The theme was the drift that has taken place whereby we find that a huge dependency has grown-up over the last couple of decades. That is the unassailable dominance of a small number of US companies throughout the whole of our country.

What am I using to write this remark? It’s a computer program called “Word” sold to me by a multinational company called “Microsoft.” What’s strange is that this way of expressing my relationship with Microsoft isn’t commonplace. There’s a tendance to treat software, like Word as if it has always been with us and always will be. Like the public roads I drive my car on. Completely taken for granted. That is until a problem arises.

This Saturday article wasn’t about computer software per-se. Although the world of computing is riddled with intellectual property rights there remains a kind of openness to new ways of doing business. Digital ones and noughts are like the text on this page. They can be rearranged in all manner of diverse ways. The combinations and permutations are almost infinite.

Tim Wu argues that we should look to the way transport systems developed as an analogy to the electronic communications infrastructure we use.

Roads developed in the era of the horse. More than 200-years ago, before the time of the railroad. In fact, they go back a lot longer than a few hundred years ago. The Romans were particularly good road builders. However, that was a state enterprise aimed at getting armies around a sprawling empire.

The condition of roads in Britain took a leap forward when commercial enterprise found a way of getting an income from the primary land transport system of the day. Road tolls were a way of building and maintaining a network of highways. This network was physical. Fixed in place.

Digital infrastructure is more than cables, wireless systems, and databanks. Without the human interface all that extensive structure is unusable. That’s were a small number of US companies dominate the marketplace. This complete extra territorial dominance is, like my comment about Word above, taken for granted.

Tim Wu’s analogy doesn’t cut the mustard. It does illuminate an inconvenient truth. The reason the big US companies are driving the future of communication and technology is because they have captured a massive global income stream. However, much of that position depends on the laws that prevail in each nation. That prevail at a time when globalisation was seen as almost unquestionable. Now, the question arises has national sovereignty been sacrificed on the alter of progress? If so, what next?

There’s often been a hard kick-back against anticompetitive behaviour. Monopolies are not considered the best way to serve the public interest. Nevertheless, throughout history they have been pivotal in our story. Like it or not, that’s how the elegant country houses and castles of Britain were paid for and furnished. The same experience can be witnessed at the Newport Mansions[1] in the US.

How do we democratise rapidly advancing technology? There’s a mighty big question.

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

Navigating Aviation

Each profession has a way of speaking. This is not usual. Just try reading a long-winded contact on any subject. There are lots of references to a “third party” and more than one. Copious uses of the word “herein”. A good sprinkling of “hereby” and “foregoing”.

I don’t speak those words. If I used them in everyday conversation, I’d get locked-up. Nevertheless, these English words are universally applied to common legal documentation. The hundreds of End User License Agreement (EULA) that we all sign up to, whether we know it or not, apply legalese language liberally [love the alliteration].

Aeronautical people are no different. I could have said aviation people or professional flying people. There’s the rub. Even to say the same thing, there are a myriad ways of saying it.

One major problem that we all encounter, now and then, is having to work with a community that uses language in a different way from ourselves. I’m not talking about language as per dictionary definitions of words and standard English grammar. For good or ill, English opens the door to a numerous of ways of saying basically the same thing.

Professional English users, as I have alluded to above, choose their own pathway through the possibilities. English is not alone in facilitating this variability of expression.

I once worked in Bristol. A Filton. A large aircraft factory with an immense heritage. That included the Concorde project. Here both British and French engineers had to work closely together on a huge joint venture. It succeeded. Supersonic flight was commercialised.

One of the delightful little books I picked up from that time was a handy English/French dictionary of aeronautical terms. Those in common usage at an aircraft factory of the 1970s. To communicate effectively it was recognised that technical words needed to be explained.

What I’m noting now is this reality hasn’t gone away. For all the imaginative language Apps that might grace my mobile phone, there’s still a need to explain. This gets even more important when it’s a specific aviation community that is being discussed.

How do people from other communities get what regulatory people are saying when it’s perfectly obvious to them what they are saying? Take a banker or financier that wants to invest in electric aviation because they believe the future points that way. They come across bundles of jargon and precise terms that are not found in everyday conversations. Not to say that the world of money doesn’t have its own langauage.

In aviation there’s not only particular words with detailed meanings but a raft of acronyms. Combinations of words that are easily expressed as a package of letters. Then the short, sweet acronym surpasses the original text.

SMS, POA, DOA, ODA, OEM, TSO, TC, ICA, CofA, SUP, FDM, FAR, CS, NPRM, NPA, AC, AMJ, ACJ, GM and I can go on and on.

Maybe we need a Sub Part – better understanding.