I’ll start with a quote from 2023 at a ceremony to announce and celebrate the retirement of the jumbo jet: ""“It is the most well thought out and safest aircraft ever built. Even when you understand the science behind flight, there’s nothing like seeing a 747 take flight to remind you that there’s also magic here.” So spoke John Travolta, the actor and plane nut — he’s a licensed 747 pilot and a huge fan of the plane. He actually has a house with a runway, and his planes, which include a 707, are parked outside. You really have to Google this — it's pretty amazing.
But what I find even more fascinating than a 747 in flight or Travolta's home is how the 747 came into being: the agreement to build it was sealed with just a handshake on John Wayne's yacht, how Boeing overcame huge obstacles to build the biggest plane in the world in just 3 years — and to do this they had to build the biggest factory in the world, and it remains the biggest factory in the world — its construction almost brought down Boeing and its main partner Pan Am, and as you’d expect there are big personalities — it’s a thrilling story — enjoy.

In the mid-1960s, air travel was exploding. The jet age — led by aircraft like the Boeing 707 — had slashed journey times, costs were falling, and for the first time, millions of people could actually afford to fly — still expensive — NY-London $450 economy, equivalent of $5,200 — still a luxury, but prices were falling.

And the most powerful and influential figure in aviation over the previous 30 to 40 years was Juan Trippe, Pan Am's founder.

Born in 1899 into a wealthy New York banking family, Juan Trippe was Yale-educated, a former Navy pilot. In 1927, he founded Pan American Airways with a single mail route between Florida and Cuba. Because in the 1920s, the real money in aviation wasn't passengers. It was airmail.

And Trippe raised money from his network of the ultra-elite of Ivy League pilots — to buy up small airlines holding those mail routes. And because the money was raised from these rich families, he wasn’t under any pressure for fast returns, so he had time to build his business.

He also had time to spend in Washington because Trippe was also very adept at playing the political game.

He went to Washington and argued that competition would "weaken the American image abroad."

And essentially said: "I'll act as America's arm abroad. I'll build the airfields, the radio towers, the routes — and in return, I want exclusivity," and he got it.

Pan Am became, in effect, the unofficial flag carrier of the United States, with exclusive rights to international routes. And by the late 1930s, Pan American was the largest air transport network in the world.

As air travel opened up to passengers, it was Trippe who understood that the future of air travel was in making it cheaper, more affordable to the every man. In 1943 he told the National Institute of Social Sciences in New York that air transport had “a choice — a very clear choice — of becoming a luxury service to carry the well-to-do at high prices or to carry the average man at what he can afford to pay. Pan American has chosen the latter course.” He introduced a "tourist class" fare from New York to London. He cut the round-trip fare more than half — it caused such trouble with airports and other airlines, where prices were fixed cartel-like, that for a while Pan Am couldn’t fly into Britain.

From Time magazine: “Juan Trippe was not a model chief executive. He didn't delegate well. He made big deals without telling his top managers. He almost single-handedly built a world airline, Pan American, but often acted as if he owned the world.”

Trippe — you wouldn’t think he was a Navy pilot — he was no Maverick, definitely not Iceman. He was conservative, formal, wasn't charismatic. He was quiet, often mumbling, socially awkward, Machiavellian, and had zero loyalty to anyone — even his top managers at Pan Am. Despite being married with four children, Pan Am was his life. He was a workaholic.

He was also very good at playing the main manufacturers off each other — a ploy that Michael O'Leary, the head of Ryanair, is also brilliant at doing.

He would push manufacturers like Boeing and Douglas to build aircraft that didn't yet exist — larger, faster, more ambitious — and then back it up with massive orders. He would often order so many of a new aircraft that he would take up the factory's entire capacity for three years. This meant his competitors physically couldn't buy a modern plane, giving Pan Am a huge advantage.

But by 1965, Trippe's monopoly was cracking. The government was finally allowing other airlines — like TWA — to fly international routes. So he needed something new. Something big.

Which brings us to the summer of 1965, on board John Wayne's yacht, the Wild Goose — a 136-foot converted WWII minesweeper, with a saloon at its centre. U-shaped velvet sofa. A large fireplace. Think all thick wood, cigar smoke and bourbon, designed for long nights of conversation, where America's most powerful gathered. Wayne hated Hollywood parties and instead much preferred hosting get-togethers with the most powerful people in business and politics. And the man Trippe wanted to talk business with on that yacht was Bill Allen, Boeing's president.

Allen was another very interesting character. He wasn't a pilot. He wasn't an engineer. He was a Montana-born lawyer who'd spent 20 years as Boeing's legal counsel. So how did he get to be in charge?

In 1945, the war ended. Military orders collapsed overnight. Boeing went from 160,000 employees to 30,000 almost overnight. The company was bleeding cash. Boeing's president died suddenly and the board turned to Allen. He reportedly told them: "I'm not qualified." But they obviously thought he was — and they were right.

He was tall, lean, and had a slightly weathered, scholarly face. He was a man of high ethics, very honest and low ego. He was famous for saying, "I don't understand that, explain it to me like I’m a lawyer." This forced engineers to strip away the jargon. He established a culture at Boeing that lasted for decades, centred on the idea that the quality of the engineering was central. Build the best aircraft in the world, and the profits will follow.

But despite that cautious, meticulous legal background, Allen proved he was willing to bet the entire company.

Allen made his first "bet-the-company" move in 1952, when he authorised $16 million — virtually all the profit Boeing had made since the war — to build a prototype of what would become the Boeing 707, without a single order from an airline.

Why this was such a gamble: the airline business still relied on and trusted propeller planes. A British aviation company called de Havilland had built the first passenger jet, which launched in 1952, but it had proved a disaster — culminating in two crashes where all passengers were killed in 1954. Airline CEOs, including Juan Trippe at first, were terrified of jets. As well as the danger, they were loud, heavy on fuel, and required longer runways than most cities had.

But Allen and Boeing, with their emphasis on engineering excellence, got it right with the 707, which launched in 1957. And pretty quickly, Juan Trippe could see the potential — because up to this point, propeller planes carried 60 to 90 people, New York to London in 12 to 14 hours. The 707 could carry up to 180 people at twice the speed — New York to London in 6 to 7 hours. Trippe placed a massive order. Within a few years, the 707 had captured the majority of the world's long-haul market. Boeing became the king of commercial aviation.

So when we get to that meeting on John Wayne's yacht in 1965, Allen and Trippe know each other very well. Allen finds Trippe infuriating. Pushy. At times underhanded. But he also knows Trippe bets big and is willing to back his intuition with huge orders.

The pitch from Trippe to Allen was simple: build a jet that could carry 400-plus passengers.

The actual exchange became legend. "If you'll build it, I'll buy it," Trippe said. Allen replied: "If you buy it, I'll build it."

A handshake, that was it, and then a few months later in April 1966, Pan Am placed an order for 25 Boeing 747s, with options for 10 more. Roughly $20 million per aircraft. Total: $525 to $550 million — about $4 to $5 billion today. The largest single commercial aircraft order in history.

The delivery deadline? Three years. End of 1969. That schedule was 30% faster than any airliner development before.

This was a huge gamble by Trippe. But the pressure on Boeing was even bigger.

With a development budget estimated at around $700 million — $7 billion adjusted for inflation — it was seen by many analysts as a "spectacular gamble." Far above any previous commercial jet project. To fund it, Boeing took on the largest debt in its history. Under the standard model, airlines paid most of an aircraft's price upon delivery, not upfront. Boeing had to float the development costs for years, essentially out of pocket. Any misstep or delay could push Boeing to bankruptcy.

Both Allen and Trippe understood the stakes. Each was "placing his company, its employees and its shareholders at enormous risk."

Trippe had design requirements. He demanded a nose that could hinge open for cargo loading. And the reason for this is really interesting — everyone in the aviation business back then believed that supersonic airliners would eventually dominate passenger routes. Remember, this was the 1960s. NASA was putting men into orbit. The British and French had started work on Concorde in 1962. The Russians were working on their version. And Boeing itself was working with the US government on a supersonic project — a plane called the Boeing 2707, which would have been considerably faster than Concorde and much bigger, carrying 300 passengers against Concorde's 100.

So the 747 was seen as a stopgap. Once supersonic took over, you could convert your 747s into cargo planes — hence the nose that could hinge open. That gave the 747 its iconic upper bulge.

Trippe also insisted on a double-deck layout. Boeing pushed back. It would be too high, and too difficult to evacuate up to 500 people within the 90-second rule. Contentious meetings followed. The 747's head engineer was a man called Jim Sutter — a legend in Boeing history who led a team of engineers called "the Incredibles," a very tight and loyal group. Sutter was one of the very few men who could and would challenge Trippe.

He pushed back on the double deck. Sutter stretched a 20-foot rope across Pan Am's boardroom to illustrate the cabin width. They built full-size mockups. Eventually, Trippe relented. But he insisted the unused hump space become a swanky upper-deck lounge for premium passengers. Sutter hated the idea — but he relented too.

Now Boeing had to deliver.

And the first big obstacle was that they didn't have a facility large enough to build the 747. So not only did they have to build this brand new, unheard-of plane 30% faster than any other plane — they also had to build a whole new factory. The biggest factory in the world.

They chose a sprawling 780-acre site at Everett, Washington, about 25 miles north of Seattle. They aimed to have the factory ready in mere months. But there were huge challenges. The nearest rail line was five miles away and far below the new site. To get all of the huge parts, not just for the building but for the plane as well, they had to build one of the steepest railway lines in the US. Local homeowners had to be bought out. One stubborn holdout eventually extracted $50,000 for a property worth one-tenth of that.

Then there was the weather. As soon as construction began, 67 straight days of rain turned the site into a mud pit. Snowstorms followed in winter. When the first group of 747 assembly workers arrived in early 1967, the plant's walls and roof were still being finished around them.

When the Everett facility was completed, it was — and still is — the largest single building in the world in terms of volume. While its footprint is 4.3 million square feet, which isn’t the biggest, its overall volume is 472 million cubic feet. The building was so vast that in the early days, before the ventilation was properly figured out, condensation would build near the ceiling and literally fall back down. Light rain, inside the factory.

I mean just getting that factory built in a matter of months — it makes you wonder and admire the private sector. Can you imagine if government projects were approached with the same level of focus and intensity?

Internally, the pressure was enormous. There was the scheduling pressure and the financial risk already mentioned. And Boeing was stretched thin on top of all of it — they were simultaneously working on the smaller 737 jetliner, designed for shorter city-to-city flights, and also working on a government-funded supersonic prototype.

And on top of all of this, there was a huge amount of technical and engineering risk. Nothing of the 747's size and complexity had ever been built for commercial aviation. Boeing's teams were operating at the edge of known technology.

Every major component of the jet posed challenges. The unprecedented wingspan and weight required new structural designs. The landing gear needed to support over 700,000 pounds at takeoff — roughly double anything else out there. The electrical and hydraulic systems needed far more power. Even the simulators to practise flying a 747 had to be invented from scratch.

The company was obsessed with safety. Everyone knew that a 747 crash would be more catastrophic than any previous airliner accident. Boeing adopted an unprecedented fail-safe design philosophy: no single failure should doom the aircraft. So Boeing built in backups for every critical system, each ready to take over if the main one failed.

And central to the whole 747 were its turbofan engines — which didn't even exist yet. They had to be developed from scratch by a company called Pratt & Whitney, a US-based aerospace manufacturer still going strong today. And this was news to me — I don't know why, but I always thought Boeing made their own engines. They never have. They've always sourced them from companies like General Electric and Rolls-Royce. So this new engine, the JT9D, had to be designed in parallel with Boeing designing the airframe.

And as we move into 1968, the Everett factory was humming with activity, with roughly 20,000 people working on the 747 programme — this would eventually grow to about 50,000. That year, Bill Allen retired — staying on as chairman but handing leadership to T.A. Wilson, a Boeing lifer. A gruff, Missouri-born engineer who famously chewed on unlit cigars. Wilson was a realist who lacked Bill Allen's polished diplomacy, but made up for it in his engineering expertise — and was also a tough pragmatist.

On September 30, 1968, the first completed 747 was rolled out at Everett, with 26 uniformed flight attendants — one from each airline that had ordered the 747 — at the ceremony. Because by now, Boeing had orders for approximately 150 planes. It was rolled out, though — not ready for its first flight yet.

Five months later, on February 9, 1969, the 747 took to the air for the first time, under lead test pilot Jack Waddell. The maiden flight lasted about an hour and a half, with Waddell commenting afterwards: "It handled magnificently. It's a pilot's dream."

But as tests continued throughout the year, one big problem emerged: the Pratt & Whitney engines. They were powerful, but unpredictable. Some surged, some stalled. Pratt & Whitney kept insisting the problems were minor.

So Jack Waddell decided the Pratt & Whitney executives needed to experience this for themselves. He took them on a test flight and pushed it right to the edge. One of the four engines surged. There was a huge bang — like a cannon going off inside the cabin — the entire aircraft shuddering, and then a long sheet of flame blasting out of the engine. And in the back, these executives — who minutes earlier had been defending the design — just went quiet. White as a sheet. And Waddell, completely calm, turned back and said: "Is that minor enough for you?"

The 747 has four engines, so there were still three working — but still. That ended the debate.

Pratt & Whitney committed to a full fix, which resolved the worst problems but cost precious time. And this was costing Boeing big time — the project was burning through $5 million a day, and their funds were nearly exhausted. Initial deliveries, planned for late 1969, had to be pushed into the new year due to engine retrofits and remaining tests, because all of this hinged on getting FAA certification — that was the linchpin.

Then, in the final weeks before certification, disaster nearly struck when a test aircraft came in too low on approach and hit the ground short of the runway. The impact tore off part of the landing gear and damaged two engines, and the aircraft scraped along the runway before stopping — but there was no fire, no one was injured. Investigators ruled it pilot error, the aircraft was repaired, and the incident ultimately highlighted how strong the 747's structure was.

So finally, on December 30, 1969, the FAA granted the 747 its airworthiness certificate.

Pan Am took delivery of the first 747 in January 1970. It was christened "the Queen of the Skies."

In the early hours of January 22, 1970, the first 747 commercial passenger flight took off from New York, carrying 335 passengers and 20 crew — the world's first jumbo jet passenger flight. That first 747 landed in London to great fanfare.

Now, when I saw that figure I thought — why only 335 passengers? The plan for the 747 was 500 passengers. Well, these first models were built for luxury — there was a lot more legroom, and there was the VIP lounge in the upper deck where the hump was. The 747 was the ultimate in luxury travel — American Airlines 747s had a piano bar in economy class in the 1970s. Continental's models had a lounge with sofas.

Early 1970 saw a wave of prestige launches: TWA, Lufthansa, Japan Air Lines and others rushed their new 747s into service. Boeing delivered 92 jumbo jets in 1970 alone.

But the timing of the 747 couldn't have been worse. By the end of 1970, as a result of the cost of the Vietnam War, billions being spent on huge social programmes, and high interest rates, the US economy was plunged into a recession. Business travel and luxury holidaying — which would have been exactly what the 747 was designed for — plummeted. Boeing's sales pipeline dried up completely.

In 1971, Boeing received only seven new orders. Development costs had ballooned to over $1 billion, and Boeing's overall debt exceeded $2 billion. The company teetered on the verge of insolvency.

Then came another blow: as a result of the recession, the government-funded supersonic programme was completely cancelled.

What happened to supersonic travel — it disappeared because the economics and physics didn’t work. Sonic booms meant planes could only fly fast over oceans, and the fuel costs were enormous while carrying far fewer passengers, making tickets incredibly expensive. It was never mass travel. But now, with new technology and easing regulations, supersonic flight may finally be making a comeback.

Wilson had to go to New York and sit across from a syndicate of 20 banks. He famously told them that if they didn't keep lending Boeing money, they would own a giant, empty factory and a bunch of planes. Essentially, by this stage, the banks were as much prisoners of the 747 as Boeing was.

Wilson imposed pay cuts of as much as 25%. He slashed R&D spending. About 35,000 employees were laid off during 1970 alone. The impact on the Seattle region was devastating, as layoffs "rippled through machine shops and suppliers, stores and restaurants" and house prices collapsed.

Boeing avoided outright bankruptcy by diversifying into military and space contracts, and also by focusing on their short-haul jet sales. And it wasn't just Boeing who were affected — Lockheed almost went under. President Nixon had to ask Congress to approve $250 million in government loan guarantees to rescue Lockheed.

By the start of 1972, there were glimmers that Boeing had stabilised. But then, in October 1973, the Yom Kippur War sparked a geopolitical crisis. Oil prices quadrupled within months. Demand for air travel plummeted, especially on the long-haul international routes the 747 was built for.

Yet despite all of this, while 1973 and 1974 were challenging, they weren't catastrophic for Boeing. The company remained profitable, albeit marginally, thanks to prior belt-tightening and its diversification — by now, defence and space contracts accounted for nearly half of Boeing's business, providing a buffer. The company's strategy, in a quote from Wilson, was to "pour resources into stable government contracts while riding out the civilian drought."

By 1975, the global economy was stabilising, and air travel demand began a gradual uptick.

New 747 orders finally trickled in again. And as we move into the second half of the 70s and then into the 80s, Boeing dominated long-haul markets, revenues climbed back into the multi-billion-dollar range, and its debt load was reduced and refinanced. They had little to no competition, as Airbus didn't build a plane big enough to challenge the 747 until the 90s.

And what of Juan Trippe and Pan Am, Boeing's main partners throughout all of this?

Trippe stepped down in 1968, just a year into the start of the Boeing project — after nearly 40 years in absolute control. There was no real successor. No second-in-command who had ever truly been tested.

And what he left behind was a company loaded with debt from the 747, and then there was the recession followed by the oil crisis. Demand collapsing.

And unlike other major airlines, Pan Am had a fatal weakness. It didn't fly domestically. All its flights were international, so it was completely exposed.

By 1974, the situation was so bad that Pan Am went to the US government asking for a bailout just to survive. They were refused and were staring at collapse.

It was only a massive loan backed by the Shah of Iran, reportedly worth hundreds of millions, which helped keep the airline afloat.

But as a sign of how close its fortunes were tied to Boeing's, it also started to turn a corner in 1975. International traffic was rising again and Pan Am survived — but it never regained its place as the titan it had once been. Deregulation in 1978 opened the floodgates to competition, and Pan Am never recovered.

And in 2023, Boeing stopped production of the 747 — the reason was price. Engines became so powerful and reliable that twin-engine planes — like the Boeing 777 and 787 — could now fly across the ocean more cheaply than the four-engine 747.

And so that was the end of the 747 — and when we look at technology that changed the world — and we think of the steam engine, the telephone, the personal computer, the iPhone — the 747 is right up there.

The 747 democratised long-distance travel: by the 1980s, average transatlantic fares in real terms had fallen by more than 40% compared to the late 1960s. It enabled mass tourism on a scale that didn't exist before. And I love this line — it's been called the plane that shrank the world.

Over the five decades of its existence, it carried 5.6 billion passengers — 80% of the world's population.

And the story behind how it was built — the blood, sweat and tears, the extraordinary effort, the ingenuity, pushing boundaries, achieving what was once thought impossible — that’s what makes the story of the 747 such a good one, and that brings us to our listeners' emails, and this one comes from Mike who would love to hear the story of Kim Dotcom — remember him — he owned Megaupload and was arrested in New Zealand all the way back in 2012, tens of millions of dollars were seized and frozen, supposed to be extradited to the US, but he’s still living in New Zealand — and his story is an incredible one — so thanks so much for the suggestion, Mike, and for listening.

And remember, if you have any comments, any corrections or any story you'd like us to cover, email us at: info@gbspod.com

All the best, folks