#lner a4

The story begins well before July 3rd, 1938, of course - mechanical engineer Sir Nigel Gresley was well established in his position as the CME of the London and North Eastern Railway by that date. In 1923, his most famous creation, a 4-6-2 Pacific A1 numbered 4472, took to the rails for the first time. Originally numbered 1472, within a year of running between London to Edinburgh she received her more familiar 4472 after the LNER finally settled on a company-wide numbering scheme - and the name she’d be best known under, Flying Scotsman. She became the company’s flagship locomotive and solidified Gresley’s ability to design Pacifics in the mind of the public.

Her most important contribution to what I’m about to get into the meat of here, though, occurred on November 30th, 1934. On that date, pulling a light testing train behind her, Flying Scotsman hit 100 mph, becoming the first locomotive to hit that speed whilst being officially measured. Other locomotives may have reached 100 mph before, most notably GWR 3700 City of Truro and NYC 999, but this was the first time the speed was officially recorded, and so Scotsman got her name into the record books.

Dating back to the 19th century, railroads in Great Britain competed against each other in what was known as the Race to the North, in which they actively attempted to outdo each other and get passengers from the south, usually London, up to various destinations in Scotland. Nobody ever actually said they were racing, of course, but in retrospect it was pretty obvious what was going on as the railroads introduced faster and faster services. By the 1930s, the railroads had been consolidated into four companies - the Big Four (the Great Western, the Southern, the London, Midland and Scottish, and the heroes of this story, the London and North Eastern). The LMS controlled the West Coast Main Line, and the LNER controlled the East Coast Main Line. (This is important.) In 1927, the LNER started running the named train Flying Scotsman non-stop from London to Edinburgh, utilizing corridor tenders to perform crew changes at speed without stopping. Not to be outdone, the LMS beat them to the punch, running non-stop services between London and Glasgow and London and Edinburgh on their own, and it was officially on. Although speeds were still within a reasonable range at this point, both railroads knew they needed to go faster, and Sir Nigel Gresley looked to Germany.

In Germany, a new streamlined service called the Flying Hamburger had been introduced. This was a diesel train set that ran between Hamburg and Berlin at remarkably high speeds - it had an average speed of 77 mph and could hit around 99-100 mph at its maximum. For regular service, this was impressive, and Gresley wondered if the same could be done using steam power. He knew streamlining was the key, but the LNER knew that the diesels in Germany didn’t have the same passenger capacity as their steam locomotives could pull in carriages, so he needed to get creative. He looked to Bugatti for inspiration; their racecars, in their resplendent blue, were but one thing the car company was working on - they were making streamlined railcars, as well. Gresley took note of their designs, and his new locomotives would eventually pay homage by being colored Bugatti blue.

(Image: a Bugatti Type 54 racecar, painted in a vivid blue.)

By the time Flying Scotsman hit 100 mph in 1934 and another Gresley Pacific locomotive, A3 2750 Papyrus, managed to hit a whopping 108 mph without streamlining, the LNER knew that Gresley was capable of the task, and they allowed him to design a streamlined locomotive. Gresley set to work making improvements to his A3 design, and the first four A4s were born.

(Image: an unidentified A4 Pacific locomotive.)

The A4s were fast, hitting 112 mph on the inaugural run of the Silver Jubilee service between London and Newcastle in 1935. Gresley, of course, was not satisfied - he knew he could still improve his design, and at any rate, his competition over at the LMS was going to be trying to catch him. He went back to the drawing board to make the A4s even better.

As this was going on, the LMS was indeed playing catchup, and they introduced their beautiful Coronation class locomotives, designed to pull the Coronation Scot starting in 1937. The first several of them were streamlined in gorgeous, bright casings, and they caused a stir, taking the British speed record back at 114 mph in an attempt by 6220 Coronation that ended with a sudden braking and a whole lot of kitchenware being flung every which way in the dining car. Engineer/driver T.J. Clark and fireman C. Lewis kept her under control, but the passengers were not amused, and speed records were shelved for the time being...until, once again, Germany entered the fray.

Back in 1936, a German locomotive, the DRG Class 05, set a land speed record for steam, hitting 124.5 mph. Gresley was aware of this and had it in the back of his mind as he improved his A4s. He experimented with giving some of them a Kylchap exhaust system, an innovation developed by French locomotive designer André Chapelon after the work of Finnish engineer Kyösti Kylälä. Chapelon’s work went woefully under-acknowledged, but Gresley paid attention and appreciated his work, and it would pay off. Wind tunnel tests proved a bit frustrating at first until a fortuitous accidental thumbprint helped to move the smoke up and over the locomotive instead of in the crew’s faces, and the stage was set.

4468 Mallard rolled off the line at Doncaster Works on March 3rd, 1938, her name derived from Gresley’s love of breeding waterfowl. Indeed, many of her sibling locomotives were also named for birds, like 4464 Bittern, 4467 Wild Swan, 4902 Seagull, and 4903 Peregrine, but the duck was about to steal the show. Mallard spent the next few months getting used to working and being broken in so she wasn’t brand new, and on the day she turned four months old, it was time to make history.

Mallard’s driver that day was a 61-year-old grandfather named Joe Duddington. As a locomotive engineer, he was experienced and knew how to take calculated risks, and so he’d been assigned to pilot her. With him on the footplate was fireman Tommy Bray and his massive tattooed arms, ready to keep Mallard fed as they drove into the history books. They were performing a “brake test” that day, or so the LNER told most people, passengers included, but Joe and Tommy knew what was actually going on. In the cab with them was an LNER official, Inspector Jenkins, and attached to the train behind the tender was a dynamometer car, there to record Mallard’s speed throughout her run. Since this was an alleged “brake test” the dynamometer car didn’t raise any eyebrows right away. Gresley himself unfortunately wasn’t in the best health that day and was unable to be present himself, but there were enough LNER officials on hand to see to it that everything ran smoothly. Mallard was fitted with a stink bomb of sorts of aniseed in case the big end bearing for the middle of her three cylinders overheated, as the A4s had previously had difficulty with this, and she set out heading northwards. The return trip was where everything was going to get serious.

Upon turning around to return south to King’s Cross, passengers were finally informed of what was going to happen and were given the opportunity to disembark and take another train if they were worried, especially given what had happened during the LMS record attempt a year prior. Everyone agreed to stay on board. Joe Duddington turned his hat backwards, a reference to George Formby’s character in the film No Limit, and opened the throttle.

Mallard slid back onto the main line, headed towards Grantham, where the speed-up was to begin. Unfortunately, work on the track limited her to only 15 mph at this stage, and Joe Duddington got her through the Grantham station at only 24 mph instead of the 60-70 mph she should have been at. Nevertheless, she began to build up more and more speed as she climbed up Stoke Bank, and Duddington had her at a solid 85 mph at the summit.

“Once over the top, I gave Mallard her head, and she just jumped to it like a live thing,” Duddington recounted later in an interview. Her speed rapidly increased, and she was soon hitting 110 mph, at which point he told her, “Go on, old girl, we can do better than this!” Mallard responded, and by the time she was flying through a village called Little Bytham, a blur of blue paint and pumping rods and flying ash, she had well exceeded the LMS record and was even with the German DRG Class 05. The needle in the dynamometer car tipped up higher and higher and surpassed the Class 05 by slipping up to 125 mph...then, for about a quarter of a mile, reached even higher, at 126 mph. She’d done it.

Mallard had to slow down soon after because of a junction, but Joe Duddington and Tommy Bray were sure she could have gone faster had they not had to slow for construction - they believed she was capable of 130. The big end bearing did overheat, and Mallard was detached from the train at Peterborough and brought back to Doncaster to be fixed up, but not before one of the most famous photos in railroad history was taken:

(Image: the crew poses in front of Mallard, a 4-6-2 Pacific locomotive numbered 4468, immediately after setting the speed record. L-R: Tommy Bray [fireman], Joe Duddington [driver/engineer], Inspector Jenkins, Henry Croucher [guard/conductor]. Joe Duddington has turned his hat around to face the correct way again after having it on backwards during the record run. Photo credit: National Railway Museum.)

Joe Duddington actually stayed on a bit past his retirement age to help free up soldiers for the war effort. When he finally retired, on his final day of work, he drove Mallard one last time.

Sir Nigel Gresley himself never accepted the brief stint at 126 mph, instead saying his locomotive set the speed record at 125 mph. But history has accepted the 126 mph as the true top speed, given that Mallard was possibly capable of even more, and today she has plaques on her streamlined cladding to commemorate her feat. A second record attempt was planned to see if she could go even faster, but World War II broke out and the idea was scrapped.

Tommy Bray eventually got on the throttle himself, fulfilling his own dreams. Both men are honored in a cemetery in Doncaster with a new memorial headstone for Duddington featuring Mallard on it.

As for Mallard herself, she continued working until April 25th, 1963, at which point she’d clocked nearly a million and a half miles in service. She was pulled for preservation for obvious reasons, and today she lives at the National Railway Museum in York, along with her dynamometer car that recorded her history-setting run. Five of her A4 siblings also survive, and a few of them are operational to this day, including the one named for her designer, Sir Nigel Gresley. Of all of his ‘birds,’ the one that flew fastest was the humble duck.

For more on Mallard and her creator Gresley, here are a few resources:

Mallard: How the Blue Streak Broke the World Speed Record by Don Hale is a great book on the subject that I enjoyed thoroughly. It does have a Kindle edition if you’d prefer an ebook variation, as well, and most major book retailers carry it on their websites.

The National Railway Museum, Mallard’s retirement home, has a 3D experience/ride of sorts that simulates what it was like to be running with her that day, the video of which is online here. Note the music, which mirrors her three cylinders pumping away. The video isn’t able to be embedded, but you can watch it here. There’s also a child-friendly version, too.

Lastly, the appropriately named prog rock band Big Big Train did a song about Mallard called East Coast Racer, which regularly moves me to tears because this locomotive means so much to me and they tell her story so lovingly.

I actually recommend checking out the live version, too, because they show the photo of the crew at the end and every single time I start sobbing.

If you want to visit the old girl herself, she’s at the National Railway Museum in York in the UK, and they have a ton of amazing resources and incredible locomotives and rolling stock in their collection. I’d highly recommend checking them out if you can!