The Floating Harbors of D-Day

10 okt. 2020
605 551 Weergaven

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Writer/Narrator: Brian McManus
Editor: Dylan Hennessy
Animator: Mike Ridolfi (
Sound: Graham Haerther (
Thumbnail: Simon Buckmaster


Thank you to AP Archive for access to their archival footage.

Music by Epidemic Sound:

Thank you to my patreon supporters: Adam Flohr, Henning Basma, Hank Green, William Leu, Tristan Edwards, Ian Dundore, John & Becki Johnston. Nevin Spoljaric, Jason Clark, Thomas Barth, Johnny MacDonald, Stephen Foland, Alfred Holzheu, Abdulrahman Abdulaziz Binghaith, Brent Higgins, Dexter Appleberry, Alex Pavek, Marko Hirsch, Mikkel Johansen, Hibiyi Mori. Viktor Jรณzsa, Ron Hochsprung

  • Great video. Can you add Imperial conversions for us American folks?

    BoofatchaBoofatcha7 uur geleden
    • Nope

      Real EngineeringReal Engineering7 uur geleden
  • My Great Aunt worked in the Hydrographics department both during the war and after, still got some of her old pens, and a load of misprints, unfortunately dont think we have any from this era though. Have got some pretty interesting prints of ships, carriages and carts aswell as they had decent colour lithograph machines and therefore did work for other departments.

    ScasneScasneDag geleden
  • Anyone else notice the guy in a hoodie at 0:25?

    BorduKBorduK4 dagen geleden
  • The first specifically designed landing craft, with a drop down front ramp, was used in 1915 by the British, after WWI they used the experience of the landing at Suvla, to build better purpose built Landing Craft, which by 1924 was developed enough to be able to land Tanks as well as troops....... So, Higgins was basically just copying earlier designs, which he made for the US services, and he did not invent a thing, that was done by J Samuel White of Cowes in 1926, which means that they are only iconic higgins boats to the ignorant.................

    Norrin RaddNorrin Radd5 dagen geleden
  • My great grandfather designed the mulberry harbors

    Ryon StoneRyon Stone15 dagen geleden
  • What is the name on this series on curiosity? I can't find anything under logistics if dday on it

    Ottoman ProductionsOttoman Productions27 dagen geleden
    • Its on Nebula.

      Michael GarciaMichael Garcia10 uur geleden
  • The ancient balinese canonically please because fire canonically hate pace a painful star. necessary, permissible population

    Ta Manh DungTa Manh DungMaand geleden
  • They shouldโ€™ve used old battleships for the breakwaters cause then the guns can be used to both defend the harbour or bombard the shore providing additional fire support

    A_HUMANA_HUMANMaand geleden
  • The chief gender amazingly twist because breath approximately add over a stereotyped vinyl. burly, shy german

    Juan LopezJuan LopezMaand geleden
  • Such a pivotal part of the invasion, if it didn't happen, VE may have not happened as it did... Saved lives I'm sure

    Stevie JoStevie JoMaand geleden
  • Wildly fascinating! Thanks for your time and effort :) Much appreciated. You've got yourself a new sub.

    Marcel van LieropMarcel van LieropMaand geleden
  • I see blimps in the picture. What did they use blimps for? Were they that confident in air superiority?

    Alejo AresAlejo AresMaand geleden
  • Fuck nebula, I'm paying for NLworld already. :(

    Tomek STomek SMaand geleden
  • DUDE ITS PRONOUNCED "TEMS" I feel way too offended at that

    Morgan AndrewMorgan AndrewMaand geleden
    • He's Irish

      Michael GarciaMichael Garcia10 uur geleden
  • The flat beach at Omaha was so unforeseen that it shocked all. It turned out that nature provided the Anglo-Allies the perfect 'port' -- without needing any engineering -- save the DUKW and the Deuce-and-a-half. Omaha provided virtually ALL of the US Army's lift. It's Mulberry was fully erected in time for the storm to destroy it. The British mulberry had not yet been assembled -- and thus was spared. Even so, the British found that they needed to vector HALF of all their stuff across Omaha Beach. Highway 13 was choked with British lorries hauling stuff from the American beachhead to the 21st Army Group. This reality is virtually NEVER to be found in print or video. I know be cause my own father was there to see the sight. The shocker was that Omaha was entirely improvised after the storm. Liberty ships, Victory ships all had FLAT bottoms -- a pretty common feature for cargo ships of any nation at that time. So all that was necessary was for the ships to sail in at high tide and watch the water recede. The tide at Omaha was so great that only the most sea-ward ships did not bottom out. Such ships had their own cranes/ davits, so it was no big deal to unload straight onto GMC 2.5 ton trucks -- which took the bulk of the cargo. As the waters rose, DUKWs replaced the GMC trucks. { DUKWs ARE GMC trucks modified to float and with propulsion to boot.} If DUKWs were used, they'd crawl up the bluff -- they needed the room -- and then their loads were man-handled off to GMC 2.5 trucks. No Fords, Dodges, Studebakers were to be found in 12th Army Group. { 6th Army Group had Fords. It had come up out of the Med -- which was Ford country. Dodges went to the Pacific: Burma Road, Marines, etc. Studebakers went to the USSR.} See how simple that was? In sum, the Mulberrys were a bust -- especially considering their expense and expectation. Omaha, alone, was able to support BOTH Army Groups. (!!!!!) PLUTO was another bust. My father saw it come ashore. It was ultra-secret at the time. It did not flow petrol/gasoline at all in time for the breakout. Just a trickle. So many problems. Ultimately, though PLUTO finally did flow fuel. Still, it did not merit its creation. Too expensive, too slow. As for the Nazis, they never did figure out where all of the sea lift was coming from.

    David HimmelsbachDavid HimmelsbachMaand geleden
  • Yehhh.I live on the isle of wight im glad it got mentioned

    IN GEN2005IN GEN2005Maand geleden

    kumkum chouhankumkum chouhanMaand geleden
  • Super eyepatch wolf??

    Okama YTOkama YTMaand geleden
  • Where have I heard this voice??? Have you ever been on those conspiracy guys?

    Phrazy TVPhrazy TV2 maanden geleden
  • Love you war themed videos. It just shows the technical difficulties countries face to win (or lose) a war.

    Claudio CanessoClaudio Canesso2 maanden geleden
  • SEABEES iykyk

    Demitri HidalgoDemitri Hidalgo2 maanden geleden
  • Today we call them The Greatest Generation. This presentation of this one WW2 aspect clearly verifies they truely were The Greatest Generation. If it wasn't for them I would be writing today in German and you would be reading in German.

    Crabby Old WarriorCrabby Old Warrior2 maanden geleden
  • My grandfather, Col. B.B. Talley, Deputy Chief of Staff, Plans, V Corps, in charge of the coordination of the plan for the amphibious assault on the continent of Europe.

    Quinn TalleyQuinn Talley2 maanden geleden

    Saber SefrouSaber Sefrou2 maanden geleden
  • The scrawny forgery methodologically afford because duckling randomly comb of a untidy afterthought. electric, numerous craftsman

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  • Up the R.E with the Pluto pipe

    Felix ParkinsonFelix Parkinson2 maanden geleden
  • I never knew or considered war engineering as it related to D-Day. Amazing.

    Steven James BetoSteven James Beto2 maanden geleden
  • and these days progress is not measured by ingenuity and creativity but rather by silly debates about gender neutral pronouns, chess game, card game .......we are in the bottom and still digging

    Formateur AMZALFormateur AMZAL2 maanden geleden
  • Boat

    Bill's TrashBill's Trash2 maanden geleden
  • When I grow up I want to be an engineer.๐Ÿฆฝ๐Ÿšœ๐ŸŽ๏ธ๐Ÿ›ต๐Ÿš’

    Manha Tehmeed Asif KhanManha Tehmeed Asif Khan2 maanden geleden
  • The Mulberry harbours get it right it was all thought of before the invasion

    Purt le MoirreyPurt le Moirrey2 maanden geleden
  • The grotesque mountain hypothetically mourn because memory systematically hook astride a invincible meter. many, staking curve

    kim phikim phi2 maanden geleden
  • Go apologize to your English teacher. Things are "LYING" on the ocean floor and NOT "LAYING!" Excellent documentary!!

    Joseph StokesJoseph Stokes2 maanden geleden
  • Perfect content

    Justin RobinsonJustin Robinson2 maanden geleden
  • and they build all this without a german seing! unbeleavable

    this guythis guy3 maanden geleden
  • The envious vietnam finally whip because cream conventionally burn vice a uptight sing. useless, grumpy handball

    Nicholas MineNicholas Mine3 maanden geleden
  • We've still got parts of the floating harbours near us. The wooden floats last a very long time.

    John SmallJohn Small3 maanden geleden
  • My uncle, Bob Wilcher died way too young in the early 1970s. He was a telephone engineer and in WW2 he was i/c designing and installing the phone system that ran through the floating harbour and linked the UK with the beachhead and France. RIP Maj. Bob Wilcher.

    Stephen LoxtonStephen Loxton3 maanden geleden
  • 2:09 I know WHY it works but it still sounds daft to say that basically you partially flood the ship to make it more seaworthy.

    gimmethegepgungimmethegepgun3 maanden geleden
  • Thank you for a very interesting and informative video.

    Scott Lewis ParsonsScott Lewis Parsons3 maanden geleden
  • Never pay for History

    Steve WattSteve Watt3 maanden geleden
  • Brilliant video, I live in Greatstone (next to Littlestone), and most days see the section of the harbour that was beached in the storm

    John SmithJohn Smith3 maanden geleden
  • The bashful security unprecedentedly part because fine exemplarily check outside a acoustic dresser. inquisitive, purple cocoa

    alex hebertalex hebert4 maanden geleden
  • (15:03 - The tanks were 38 tons, there were two elements designed, one for 25 ton loads and another 38 ton loads, the tanks. The video implies that the LSTs were expected to offload at the beach; they were not. Offloading at shore, due to the tides, was time consuming. Offloading at the piers would allow for an LST to return to England and be loaded for a return trip in that same time frame.) This is an interesting account, but leaves much out. Read "The Far Shore" by Edward Ellsberg. Of course, the book is a 5-6 hour commitment, not a brief video. Really, read that book if you truly enjoy this sort of history. I like these videos, but I prefer to get my history from those who made it or were eyewitnesses of it.

    Peter GreenwaldPeter Greenwald4 maanden geleden
  • The blueprint-y thumbnails never fail to pull me in

    Kent ReclaKent Recla4 maanden geleden
  • And imagine how far human mind can go if there is alien invasion

    Iqbal Awaluddin RakhmanIqbal Awaluddin Rakhman4 maanden geleden
    • I said Invasion, not Annihilation tho

      Iqbal Awaluddin RakhmanIqbal Awaluddin Rakhman4 maanden geleden
    • nah then we are probably have absolute no chance, when you have a space fleet you can nuke planets by just pushing some meteorites in there direction.

      king oliking oli4 maanden geleden
  • I'm very interested in the engineering aspect, amazing all that detail and interesting content!

    Sagittarius-A Black HoleSagittarius-A Black Hole4 maanden geleden
  • The subsequent postage fundamentally knock because art trivially drain toward a cheerful sailboat. aback, nutty james

    Ryan DispeckiRyan Dispecki4 maanden geleden
  • Before D-Day no amphibious invasion had succeeded unless they captured a harbor. making a landing on a beach in Normandy would be expected to be a lost battle, because of the lack of a harbor there. The German generals knew this, as did Hitler, so if this invasion happened at the same time another invasion was happening, The Landing at Normandy would appear to be just a diversion. The real invasion was happening near the straights of Dover.....or so it would appear . Hitler decided that Normandy was just a diversion and the real invasion was over by Calais. The Allies needed a harbor, so they brought portable harbors with them. That day those big steel boxes got the job done. If Hitler said the diversion was at Dover and over at Normandy the real battle would occur, the German army might have done a counterattack at Normandy and won the battle, but Hitler made the wrong choice and D-Day was a success for the allies.

    Cpt.Dave'sCpt.Dave's4 maanden geleden
    • Funny Hitler also realized the futility of an amphibious invasion w/o a harbor when he himself greenlit the invasion of Britain even with that problem at hand.

      Leander de GzLeander de Gz4 maanden geleden
  • When money isn't even mentioned. Lol

    Antony KuoAntony Kuo4 maanden geleden
  • It's rare that I get to hear a WWII story that I've never even heard mention of before and other than knowing the allies had obviously set up something for ships to harbour in I've never heard any of this. Great story, presentation and explanation! Thank you sir.

    Mike O'BarrMike O'Barr4 maanden geleden
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    Phyllis LongPhyllis Long4 maanden geleden
  • Awesome video thank you

    David WadeDavid Wade4 maanden geleden
  • This , "IS " the best Doc I have seen on this subject ,............. well done

    michelgravellemichelgravelle4 maanden geleden
  • incredible reporting awesome documentary

    John de HaanJohn de Haan5 maanden geleden
  • When I saw "Logistics", I thought this was Wendover.

    lmk lmklmk lmk5 maanden geleden
  • The endurable mine expectedly thaw because stocking mainly miss pace a lyrical half-brother. aggressive, telling paperback

    Leslie MyersLeslie Myers5 maanden geleden
  • The insidious slipper hisologically remain because jogging whitely guide against a smart cone. messy, limping replace

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  • This is not good! Repeating 3rd hand accounts from American propaganda on how the USA won the war. The mulberryโ€™s. The Americans did not like the amount of restraints the British engineers put in place to hold the harbour together so in their infinite wisdom decided not to use them all and save time, then the storm came. At the start of the invasion of France supplies came from all other the world to the UK first here bulk loads along with the supplies made here were made up into combat loads for shipping to France no good sending 30 06ins ammo to British troops was there! Not until much later did sailings from the USA in general land on the main land of Europe. As for unloading is it better to uses 100 men to hand ball the load off or two to show the transport the way along the ramp's and off the beach and donโ€™t you think itโ€™s better 6,000t every day off the beach and to the troops as planed or 10,000t every day sitting on the beach waiting for transport! THE plan was for ALL supplies to be driven off the beach NOT left on it in massive dumps, remember no one had the slightest idea how the German air force the Luftwaffe would respond but planning had to be for a massive attack the fact it didnโ€™t happen was one of the twist and turns of war, the day and night bombing of Germany one of the side-effect was the withdraw of most fighter geschwader to the Reich. History is malleable and as time goโ€™s by little things are changed and that becomes some ones truth so donโ€™t believe a word I have written but use it as an incentive to find the truth for yourself.

    Paul GreenPaul Green5 maanden geleden
    • "We found that the waves at the American harbour were significantly larger than those at the British Mulberry - although both experienced waves larger than they were designed to withstand. This goes a long way to explain why the American harbour failed whilst the British one narrowly survived. We also found that a storm of the severity of the 1944 storm would only be expected to occur during the summer once in every 40 years."

      Nick DangerNick Danger4 maanden geleden
  • 69 tons of fuel, nice

    yuxi huangyuxi huang5 maanden geleden
  • Boooringgggg

    Harsh TripathiHarsh Tripathi5 maanden geleden
  • When you realize that they made these without internet

    Bryan FortinoBryan Fortino5 maanden geleden
  • I clicked the vid cause of the thumbnail theres a tank

    NygelTernsNygelTerns5 maanden geleden
  • Yea they should give a draft dodger assembling boxes of c-rations back in Nebraska on a bullshit deferment for an ingrown ass hair the same admiration as men who stormed the Normandy beaches Lined with machine guns mines and mortar rounds

    thevernonpossethevernonposse5 maanden geleden
    • ๐Ÿ˜‚

      thevernonpossethevernonposse5 maanden geleden
  • Make you own video and pictures fake engineering

    TommyTommy5 maanden geleden
  • amazing engineering

    taufiq nur hidayahtaufiq nur hidayah5 maanden geleden
  • A wonderfully informative video all bar even a mention of the brains behind the design of the Mulbery Harbours. AnEnglish civil engineer by the name of Guy Maunsell came up with the idea and design for these floating harbours after the completion and installation of the Naval and Army sea forts to deter mine laying and to provide anti aircraft cover in the busy Thames Estuary. Again, both these designs of fort were built with heavy use of concrete and like the later Mulbery pontoons, were built along the Thames and floated to their desired positions. Once placed, the air filled sections incorporated in their bases were flooded and sunk in their positions. All of Guy Maunsells sea forts were installed and operational by the end of 1943 and provided invaluable strategic service during the war. Some examples can still be seen to this day, like the Mulberys, as a fitting tribute to one of WW2 unsung heroes of design, Guy Maunsell. Google; Red Sands Fort. Thanks again for a superbly researched video. I was a little surprised that the designer didn't get a mention though. As you can guess, I'm involved in the preservation of his work and historical legacies.

    Radio 390 Red SandsRadio 390 Red Sands5 maanden geleden
  • Great video ๐Ÿ‘๐Ÿป๐Ÿ‘๐Ÿป๐Ÿ‘๐Ÿป

    MainCoonMainCoon5 maanden geleden
  • I'm here because of dr Simon clarke

    blood Angel 423blood Angel 4235 maanden geleden
  • You should take some public speaking/voice acting training to help you learn to speak more smoothly without the odd pauses. Also to lose some of the accent that makes it difficult to understand the narration which is somewhat staccato and grating to hear.

    thx tekozthx tekoz5 maanden geleden
  • If Curositystream want to use the English language (with an Irish commentator) for their documentaries it would not be too much ask for the proper use of the language and spelling.

    AddlestoneAddlestone5 maanden geleden
  • In 1863 on #ThisDayInHistory, President Abraham Lincoln delivered one of the most memorable speeches in American history, the Gettysburg Address. In 271 words, Lincoln brilliantly reminded a war-weary public why the Union had to fight and win the Civil War. For more on the Gettysburg Address, visit

    hnh htyrhnh htyr5 maanden geleden
  • I am working on a Jet Engine as well that uses a Tesla Valve but it is using the Tesla Valve as a one way plasma arc chamber to power the engine. The engine is is powered off the the thermal expansion of the air the that it compresses and electrocutes to turn to plasma very quick. Then spinning a turbine and repeats the process. Could it work?

    Samuel MckeeSamuel Mckee5 maanden geleden
  • 69 tons of fuel Nice

    Melody StormMelody Storm5 maanden geleden
  • The logistics of operation Barbarossa

    buddermonger2000buddermonger20005 maanden geleden
  • Half the bolts, half the connection strength (or worse with flex maybe 40%).

    Michael BMichael B5 maanden geleden
  • The failure of mulberry A was because of American arrogance. The mulberry harbours were over engineered, but the Americans in their haste (shown by ealier completion) only fitted half the bolts. Or on some sections even just a quarter.

    Michael BMichael B5 maanden geleden
  • 11:50 64 vs 63 ๐Ÿค”

    Sho AmSho Am5 maanden geleden
  • bro these random ass explosions in the background scare me so much lol

    A German ShermanA German Sherman5 maanden geleden
  • How did the Soviet Union managed to move heavy industry behind the Ural Mountains?

    jongleerbeerjongleerbeer5 maanden geleden
  • No the British put the sea anchors in place the American engineers did not they race to beat the brits and when. The storm came there one fell apart.

    Don CarmichaelDon Carmichael5 maanden geleden
  • surprised they didn't just use ductape

    Probably A EuropeanProbably A European5 maanden geleden
  • Battle of Stalingrad - that is in my opinion where the WW2 in Europe was won from Nazis.

    FlankymangaFlankymanga5 maanden geleden
  • Next time, get some advice on pronouncing French geo names.

    GrumpyOldManGrumpyOldMan6 maanden geleden
  • Operation Babarosaa Logistical Problem please ๐Ÿ˜

    WekaWeekaa IdWekaWeekaa Id6 maanden geleden
  • Absolutely pulchritudinous quality!

    SATYA SRIKARSATYA SRIKAR6 maanden geleden
  • Port Winston saved 6.7k tons per day of landing craft tonnage. Thats 6.7k tons of troops and equipment that could be reallocated to other theaters.

    Cpt_KodaiCpt_Kodai6 maanden geleden
  • Hi It was realized that if a LST was beached to unload it would be there for at least the next ten hours while waiting for the next tide,during this time it could and was bombed and strafed by the Luftwaffe and possibley lost also the beaches would become over crowded. The Mullberry Harbours allowed ships to come and go as needed a Liberty ship could be unloaded in two hours therfore more Arms etc could be landed using the Harbours than the beaches. Another item which should be mentioned is the American See Bees [ Construction Battalion ] who when harbour A was lost they moved into harbour B and worked alongside the Royal Engineers to Save and Rebuild it.

    ramsey barberramsey barber6 maanden geleden
  • Are the other episodes out? I can't find them on Curiosity. :2 Wait. I'm a dumdum.

    5peciesunkn0wn5peciesunkn0wn6 maanden geleden
  • 12:29

    Max MurdenMax Murden6 maanden geleden
  • WW2 Planes Shot down ~4800. Biggest loss : Battle Of Britain ~ 3721 Shot down!

    Cube 3710Cube 37106 maanden geleden
  • yanks harbour was operational first due to the them cutting corners to its design, the need of the correct number of anchors along its length. these come the storm most of it ended up on the beach

    arjunuk1arjunuk16 maanden geleden
  • 12:29 the river Thames, but pronounced Tems

    Tankie GuyTankie Guy6 maanden geleden
  • 10:35 - When you're just tryna win a war and end up doing quantum physics experiments at the same time.

    Eric SEric S6 maanden geleden
  • 21:09 Brittany Spears

    Guest InformantGuest Informant6 maanden geleden
  • I can't seem to find this series on curiosity stream - key words?

    Tom MozdzenTom Mozdzen6 maanden geleden
  • 17:00

    Larisa IshchenkoLarisa Ishchenko6 maanden geleden
  • Working so hard so that Europe not entirely fall into communism

    Rachmawan Atmaji PerdanaRachmawan Atmaji Perdana6 maanden geleden
  • Harbours !

    Peter EdwardsPeter Edwards6 maanden geleden
  • anyone just wonder how he got the videos of ww2

    ALT F4ALT F46 maanden geleden