November 1941, Clumber Park, Nottinghamshire. Winston Churchill steps out of his car and walks nearly a mile through ankle-deep mud to reach a fenced-off test site hidden inside a former ducal estate. He has come to see something no one outside a tiny circle of engineers and military officers knows exists. It is 77 ft long.
It weighs 130 tons, and it is designed to do something no machine in history has ever done, carve a fully protected infantry trench across no-man’s-land while under fire. The Prime Minister watch as the machine lurches forward and bites into the earth. Soil erupts from conveyor belts on its back, piling into neat banks on either side.
Behind it, a clean trench stretches into the distance 7 ft 6 in wide, 5 ft deep, enough for soldiers to walk upright with full kit. Churchill later described the performance as having astonishing efficiency. He’d been waiting 25 years for this moment because this machine was not born from the Second World War. It was born from the first.
Churchill returned to the Admiralty on September 3, 1939 carrying a terror that had never left him. He had seen the Western Front. He knew what happened when armies dug in and faced each other across open ground. Hundreds of thousands dead for a few hundred yards of churned earth. Now, the Germans had built the Siegfried Line.
The French sheltered behind the Maginot Line. Every sign pointed toward another stalemate, another generation fed into the wire. During the First World War, Churchill had already imagined a mechanical trench digger, but he could not get the idea accepted. He had succeeded with a different radical concept instead. As First Lord in 1915, he established the Land Ships Committee and authorized £70,000 for armored tractors.
Those tractors became the first tanks deployed at the Battle of Flers-Courcelette on September the 15th, 1916. Now back in the same office 24 years later, he repeated the same institutional trick. He bypassed the army entirely and turned to the director of naval construction, Sir Stanley Goodall.
Churchill’s vision was enormous. He imagined 200 to 300 machines deployed along a 20 to 25-mi front, cutting communication trenches through the night. By dawn, an overwhelming force would be established inside German defenses with hundreds of protected approach routes stretching back behind them. Churchill delegated the project to J. H.
Hopkins, a distinguished ship designer. Hopkins put a young marine engineer named Frank Spanner in charge of the actual design work. The team set up in the Grand Pump Room Hotel in Bath, the wartime home of the Naval Construction Department, with some of the most sensitive work done secretly in the hotel cellars.
By late 1939, the model-making firm Bassett-Lowke of Northampton had built a 4-ft working scale model. On December 12, 1939, this model was demonstrated to Churchill at the Admiralty using simulated soil made from sawdust and plasticine. An observer noted that his smile of pleasure almost dislodged his cigar.
That same evening, Churchill arranged a second demonstration for Prime Minister Neville Chamberlain, the Chancellor Sir John Simon, and Chief of the Imperial General Staff Sir Edmund Ironside. According to Ironside’s diary, he found the concept compelling and thought it presented the first possible offensive idea.
The mahogany case used to carry the model to London resembled a small coffin. Legend has it that, as it was carried through Bath railway station, bystanders bowed their heads in respect, believing a child’s remains were being transported. Whether true or not, the story spread among the project team and became part of the machine’s mythology.
On January 22, 1940, an official order was placed with Ruston & Hornsby of Lincoln, a firm that specialized in heavy excavating equipment. On February 7, the Treasury approved production of 240 machines, 20 narrow infantry versions, and 40 wider officer versions designed to accommodate tanks. The production target was 20 machines per week.
The original design called for a single Rolls-Royce Merlin engine producing around 1,000 horsepower, but the Air Ministry reserved every Merlin for Spitfires and Hurricanes. The engine consultant Sir Harry Ricardo, recommended an alternative, two Paxman 12 TP diesel engines, each rated at 600 brake horsepower, manufactured by Davey Paxman and company of Colchester.
This forced a complete redesign that made the machine larger and heavier. The Paxman 12 TP was a V12 high-speed diesel running at 1,500 RPM with a bore of 7 in and a stroke of 7 and 3/4 in. Its innovative modular construction allowed components to be manufactured across more than 400 subcontractor firms. The finished machine was unlike anything ever built.
At the front, a large plow blade removed the upper 2 ft 6 in of soil. Behind and below it, a rotating cutting drum removed the lower 2 ft 6 in. Spinning perpendicular to the direction of travel, conveyors running along the top of the machine deposited excavated spoil in banks on both sides, while wings on the plow pushed debris clear of the trench edges.
The result was a fully formed trench with the spoil banks adding roughly 2 to 3 ft of additional effective depth above ground level. The machine ran on 2-ft wide tracks wrapping around its entire body in the style of a World War I rhomboid tank. A crew of three operated it from an armored conning tower, a driver, an engineer, and a navigator.
Digging speed was approximately half a mile per hour, shifting roughly 8,000 tons of soil. Surface speed without digging reached just over 3 mph forward and about 1 and 1/2 mph in reverse. The project cycled through several code names to conceal its purpose. It began as white rabbit number six, likely a nod to the Lewis Carroll character who disappears down a hole.
It became cultivator number six for better cover, then NLE tractors after the Department of Naval Land Equipment was established in February 1940. The workers and engineers simply called it Nellie. Now, before we get into what happened when they actually tested this thing at full scale, if you are enjoying this deep dive into one of Churchill’s maddest engineering projects, hit subscribe.
It takes a second, costs nothing, and helps the channel grow. Right, back to the trials. The prototype was completed at the Ruston-Bucyrus works in Lincoln at the beginning of May 1941. Shop trials began on May 4. By late June, the machine was transported in three sections to Clumber Park with 769 company Royal Engineers assembling and operating it.
On August 15th, a formal demonstration was held for the Army General Staff. On September 12th, the machine demonstrated an unexpected capability. It advanced through a minefield and unearthed 16 mines without detonating a single one. Personnel discovered it was safer to walk in the resulting trench than to climb over the spoil heaps, which might still contain unexploded ordnance.
Then came Churchill’s personal visit on November 6th, 1941. He watched the machine perform exactly as designed. The trench was clean, the depth was consistent, the engineering worked, but the military problems were devastating. The turning radius was approximately 1 mile, making the machine virtually unsteerable while digging.
General McCreedy, assistant chief of staff, ruled this unacceptable unless the machine could produce a perpendicular side trench every 100 yards, which was physically impossible. Conditions inside the machine were described as unbearable for even short periods, an inferno of heat, noise, and oil fumes. The long straight trench it produced created a perfect aiming line for dive bombers, essentially a guide rail for Stukas.
Small tree trunks could jam the cutting cylinders, rocky ground and heavy clay defeated the mechanism entirely, and if the machine broke down mid-trench, it trapped everything behind it with no way to reverse past a 130-ton obstruction. The project’s strategic premise had actually died more than a year before these trials even began.
On May 10, 1940, German panzer divisions bypassed the Maginot Line through Belgium and the Ardennes, overrunning France in 6 weeks. Mobile armored warfare had arrived. There would be no Western Front stalemate. Churchill recognized this immediately. In a memo to General Ismay, he acknowledged the machine could no longer be considered the sole method of breaking a fortified line.
He ordered production halved then quartered. By the end of July 1940, the original order of 240 machines have been slashed to just 33. It was eventually cut further to nine. Yet Churchill clung to the project with a stubbornness that historian John Turner attributes to his initial failure to get the mole accepted during the First World War.
When the war office tried to suspend production after the August 1941 demonstration, Churchill countermanded the order. Final cancellation came on May 1, 1943. Churchill agreed to wind up the project but added a characteristic instruction. Keep the four infantry type in good order, he wrote. Their turn may come. It never did.
On March 13, 1944, the surviving machines were moved to the Royal Engineer Stores Depot at Long Marston in Warwickshire. After the war ended, all but one were dismantled with the help of German prisoners of war, an ironic final detail. Churchill insisted one example be preserved, but once he left power, his directive was eventually dismissed.
The last was scrapped sometime in the mid-1950s. No surviving example exists anywhere in the world, but here is where the story takes an unexpected turn. The Paxman 12 TPD diesel engine, developed specifically for Cultivator number six, was adapted for marine use and went on to power virtually all British-built tank landing craft.
Over 3,500 of these engines were manufactured during the war, playing a critical role in the Normandy landings. The massive tracked trailers designed to transport Nelly sections were adapted into 45-ton tracked recovery vehicles and used extensively by the 79th Armoured Division on the Normandy beaches. Churchill’s folly indirectly helped win D-Day.
This is what separates Nelly from something like the Great Panjandrum, that rocket-powered explosive wheel that careened wildly in every test. The Panjandrum was a failure of engineering. Nelly was a failure of timing. The machine worked. The concept was simply overtaken by a revolution in warfare that no one predicted in September 1939.
No other nation attempted anything comparable during the war. The concept of an armored offensive trench digger appears to have been uniquely Churchillian. His same willingness to imagine radical solutions and force them through bureaucratic resistance had produced the tank in 1915 with Nelly. That same impulse collided with a war that moved too fast for a machine that moved at half a mile per hour.
Churchill’s own verdict on the entire affair remains the best epitaph for the 130-ton mole that burrowed through Nottinghamshire soil and into history. “I am responsible,” he wrote, “but impenitent. The engineering was sound.”
QQ4 Bob Dylan and Keith Richards have been close friends for nearly 40 years. The friendship began on a live television program in November of 1986 in the 11 seconds after Bob Dylan called Keith Richards music derivative on camera. Keith Richard’s response to that assessment, one sentence said without anger, without performance, with the specific directness of a man who has nothing to prove and knows it made Bob Dylan laugh.
Then made Bob Dylan go quiet. then made Bob Dylan say two words that people who know Bob Dylan say he almost never said to anyone. This is the story of those 11 seconds and the 40 years that followed them. The program was a live music interview special broadcast on an American network on the evening of November 3rd, 1986. The format was simple.
Two musicians, a host, an hour of conversation about music and the state of it. The producers had assembled the pairing of Bob Dylan and Keith Richards with the specific calculation of television producers who understand that two people with equally strong and potentially incompatible views about what music is and what it should do will produce better television than two people who agree about everything.
The calculation was correct, though not in the way the producers had anticipated. Bob Dylan was 45 years old in November of 1986. Bob Dylan had released Empire Burlesque the previous year and had been on the road for most of the intervening period as part of the True Confessions tour with Tom Petty and the Heartbreakers.
Bob Dylan was in November of 1986 in one of the most prolific and restless phases of a career that had consisted almost entirely of prolific and restless phases. A career that had moved through folk, rock, country, gospel, and back again, that had been declared finished at least six times by the music press, and at each time continued with the serene indifference of a river to the opinions of people standing on its banks.
Bob Dylan had been redefining what music could be. Since 1962, Bob Dylan had invented and reinvented himself so many times that reinvention had become his defining characteristic, not in the superficial sense of a performer changing costumes, but in the deeper sense of a musician who had never allowed his work to settle into a form that could be anticipated or categorized from the outside.
Bob Dylan understood influence and originality and the relationship between them better than almost anyone alive in 1986. Bob Dylan had spent 24 years thinking carefully and specifically about where music came from and where music was going and what it meant that those two things were always in constant conversation with each other.
Keith Richards was 42 years old in November of 1986. Keith Richards had been playing guitar professionally since 1962. Keith Richards had built a career on a foundation of American blues and rhythm and blues. A foundation that Keith Richards had studied with the systematic devotion of someone who understood that the tradition he was building on was not incidental to the music he was making, but essential to it.
that you could not understand what Keith Richards did without understanding where Keith Richards had come from and what Keith Richards had been listening to since he was a teenager in Dartford with American Import Records and a secondhand guitar and no teacher except the recordings themselves. Keith Richards had never pretended otherwise. Keith Richards had in fact spent considerable energy across his career making the lineage explicit, naming the artists, citing the recordings, insisting on the acknowledgement of influence that the mainstream music
industry had a long history of suppressing or ignoring or crediting to the wrong people. If anything, Keith Richards was more transparent about his sources than most musicians of his generation. Keith Richards had always said openly that the Rolling Stones came directly from the blues, that Muddy Waters and Robert Johnson and the specific tradition of the Mississippi Delta were not background influences, but foundational ones.
The music Keith Richards made was in direct and sustained conversation with that tradition, something Keith Richards considered not a limitation, but a responsibility and a form of respect. The interview had been running for 8 minutes when the host asked Bob Dylan about the current state of rock and roll.
Bob Dylan answered with the density and the indirection that characterized Bob Dylan’s responses to direct questions, turning the question over, approaching it from an unexpected angle, finding his way to what he actually thought through a series of observations that moved like a river rather than a road. Bob Dylan was not a straightforward interview subject.
Bob Dylan had been asked about rock and roll in hundreds of interviews across 24 years and had developed the habit of treating the question as an invitation to think out loud rather than a request for a prepared position. The producer Gerald Sherman said afterward that in the first 8 minutes of the interview, he had been slightly anxious, not because anything was going wrong, but because nothing was going anywhere in particular yet.
The interview had the feeling of two conversations happening simultaneously. Bob Dylan’s internal one and the external one visible to the cameras. And Gerald Sherman was not certain in those first eight minutes that the two conversations would converge into something. Bob Dylan talked about influence. Bob Dylan talked about originality.
Bob Dylan talked about the difference between music that absorbed a tradition and transformed it and music that absorbed a tradition and reproduced it. And then Bob Dylan made his assessment. And then Bob Dylan said with the precision of a man making a musical assessment rather than a personal judgment that the Rolling Stones work, and Bob Dylan was specific, naming Keith Richards as the guitarist whose approach he was discussing was derivative in a way that Bob Dylan found limiting.
Bob Dylan said it without hostility. Bob Dylan said it as a technical observation about the relationship between source material and the work that came from it. Bob Dylan said that Keith Richards played the blues the way the blues had already been played, rather than using the blues as a starting point for something that had not yet been played.
Keith Richards had been listening to this with the specific attention Keith Richards gave to things being said about music by people who knew music. Keith Richards did not interrupt. Keith Richards did not shift in his chair or display any of the visible signals of a person preparing a defensive response. Keith Richards listened to Bob Dylan’s complete observation all the way to its conclusion without interrupting and without displaying any visible signal of preparing a response.
Then Keith Richards said one sentence. The sentence was not a rebuttal. The sentence did not defend Keith Richards music or argue for its originality or challenge Bob Dylan’s characterization of what the blues meant in the context of rock and roll. The sentence was something else entirely, something that required a specific kind of confidence to say.
The confidence of a person who has spent long enough thinking about the same things as the person they are talking to that they can locate the exact point where their thinking diverges and say something useful about that point rather than simply defending their own position. The sentence acknowledged everything Bob Dylan had said, the assessment, the distinction Bob Dylan was drawing, the specific musical concern underlying the observation, and then turned it 90°.
Keith Richards took Bob Dylan’s own framework, the one Bob Dylan had used to analyze Keith Richards relationship to the blues tradition, and applied it back to Bob Dylan’s work with the same precision Bob Dylan had used to apply it to Keith Richards. Spare aimed. The sentence asked Bob Dylan something about Bob Dylan’s own music, about the relationship between Bob Dylan’s sources and Bob Dylan’s output that Bob Dylan had not been asked on television before.
The sentence did not attack. The sentence illuminated. Bob Dylan laughed. The laugh was not the polite laugh of someone responding to a joke. The laugh was the involuntary laugh of someone who has been genuinely surprised. The specific kind of surprise that a person of exceptional intelligence experiences when someone else’s intelligence exceeds their expectations.
Bob Dylan laughed for 4 seconds. Then Bob Dylan stopped laughing. Then Bob Dylan was quiet for 3 seconds in the way that Bob Dylan was quiet when Bob Dylan was thinking rather than performing thought. Then Bob Dylan said, “You’re right.” The producer in the booth, a man named Gerald Sherman, who had been working in television for 14 years, said afterward that in 14 years of live television production, he had never heard Bob Dylan say those two words in a public forum.
Gerald Sherman said he had worked with Bob Dylan on two previous occasions and had observed Bob Dylan in numerous other contexts and that you’re right was not a phrase that Bob Dylan deployed easily or often because Bob Dylan had spent 24 years being right about music in ways that other people eventually caught up with. And the experience of being right ahead of everyone else does not generally produce a man who says you’re right readily when someone else makes a point.
The host of the program, a journalist named Patricia Wells, who had been interviewing musicians for 12 years, said afterward that the 11 seconds between Bob Dylan’s assessment and Bob Dylan saying, “You’re right,” were the most extraordinary 11 seconds of television she had been present for. Patricia Wells said that what she witnessed in those 11 seconds was not a debate or a confrontation or a celebrity exchange of competing opinions.
Patricia Wells said what she witnessed was one musician recognizing another musician as an equal, which was in the specific context of Bob Dylan in 1986, not something that happened in public very often. The interview continued for another 42 minutes after those 11 seconds. The conversation between Bob Dylan and Keith Richards in the remaining 42 minutes was described by everyone who watched it as fundamentally different from the first 8 minutes.
The host, Patricia Wells, who had been conducting music interviews for 12 years and understood the difference between the performance of conversation and actual conversation, said that at approximately the 9-minute mark, something shifted in the studio. That the formal interview, architecture dissolved, and what replaced it was something less structured and more genuine.
Bob Dylan and Keith Richards talked about influence and originality and the blues and what it meant to build on a tradition without being consumed by it. They talked about specific recordings and specific musicians with the specificity of two people who had spent their entire adult lives thinking about these things and rarely found another person who had thought about them with equivalent care.
They talked about where music came from and where music was going and whether those two questions were actually one question or two. Patricia Wells said afterward that she had asked approximately four questions in the remaining 42 minutes because Bob Dylan and Keith Richards did not require questions. They required only a room and a camera and the shared understanding that what they were saying together was worth recording carefully.
She said it was the best interview she had ever conducted and that she had conducted the smallest part of it. After the program, Bob Dylan and Keith Richards were in the corridor outside the studio when the host Patricia Wells passed them. Patricia Wells said she did not stop because she did not want to interrupt.
She observed them for approximately 30 seconds from a distance. She said they were talking with the ease of people who had known each other for years rather than people who had met for the first time 2 hours earlier. She said that something had shifted between them during the broadcast that the broadcast had made permanent rather than temporary.
She continued down the corridor and did not look back. She said in her account of that evening that she had decided in that moment not to interrupt the conversation because some conversations are more valuable than any question a journalist might ask and that the conversation she had observed for 30 seconds in the corridor outside the studio was one of them.
She had been a music journalist for 12 years. She recognized the difference. Bob Dylan and Keith Richards have maintained their friendship across four decades. They have appeared together at various events, most significantly at the concert for the Rock and Roll Hall of Fame in 1995, where people who were present described them as inseparable for most of the evening, occupying the same corner of the backstage area and talking with the concentrated attention of people who only have a limited amount of time together and intend to use it
well. Bob Dylan has spoken about Keith Richards in interviews with the specific thoughtful care that Bob Dylan reserves for musicians whose work Bob Dylan considers genuinely important rather than merely culturally prominent. Keith Richards has spoken about Bob Dylan in similar terms with the specific respect of someone who recognizes in another person a commitment to music that goes deeper than career.
Neither Bob Dylan nor Keith Richards has made a public statement specifically about how the friendship began or about the November 1986 interview. Bob Dylan has not mentioned the 11 seconds. Keith Richards has not mentioned the sentence. The interview exists in the archive. The 11 seconds are there. The laugh is there. The two words are there.
What is also there for anyone who watches the interview from its beginning and pays attention to the shift that happens at the 9-minute mark is the specific moment when two people who thought they were appearing on a television program discovered they were actually talking to each other. What Keith Richards said in that one sentence has never been officially reported.
The people who were in the studio that evening, Gerald Sherman, Patricia Wells, the floor crew, the two camera operators, the makeup artist who was watching from the side of the set, have described the sentence in consistent terms. They have described its effect. They have described Bob Dylan’s laugh and Bob Dylan’s silence and Bob Dylan’s two words.
They have not repeated the sentence itself in the specific understanding that the sentence was said between two musicians on a television program and that its power resided in the specific context of that exchange and would not survive removal from it intact. What can be said is this. Keith Richards said something to Bob Dylan about Bob Dylan’s music that used Bob Dylan’s own observation about Keith Richards as its starting point and arrived somewhere that Bob Dylan had not anticipated.
Keith Richards turned Bob Dylan’s assessment 90° and showed Bob Dylan something about the music they had both spent their lives making that Bob Dylan recognized immediately as true. And Bob Dylan said, “You’re right.” Two words said by Bob Dylan in public on live television in 1986 to Keith Richards in response to a single sentence Keith Richards had said about music.
Two words that Gerald Sherman, who had worked with Bob Dylan on two previous occasions, said he had never heard Bob Dylan say in a public forum. Two words that Patricia Wells, who had been interviewing musicians for 12 years, said were the most significant two words she had heard in those 12 years. Not because of their content, but because of who said them and what it cost to say them and what it meant that Keith Richards had produced them in 11 seconds from a conversation that began with Bob Dylan calling Keith Richards’s music derivative. And Keith Richards and
Bob Dylan have been close friends for nearly 40 years. The sentence did its work in 11 seconds on the evening of November 3rd, 1986. The work has been ongoing ever since. If this story moved you, subscribe and leave a comment below. Have you ever said something to someone that turned a potential disagreement into an unexpected and lasting connection? Tell us about it in the comments below.
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Disclaimer : This content may be created by AI for entertainment purposes. Any resemblance to real persons, events, or places is coincidental.
