Crawling Down A Torpedo Tube -US NAVY Nuclear Submarine - Smarter Every Day 241
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Note: The US Navy put no restrictions on me about what I should say or how I should present what I learned on this trip. Other than making sure my footage was cleared for Operational Security, I am free to say whatever I want about this experience.

Another note: The Navy did not ask me to provide a link to their website (or do anything for that matter), but I’m going to provide a link because I want smart people to become submariners. The US Navy continues to provide stability and security in ways no other organization on earth does. If you are interested to find out how you can join the Navy you can visit the website here:

There are tons of interesting career opportunities out there that I never knew about:

The US Navy has several options such as engineer, pilot, submariner, logistics, accountant, medical doctor, and even Public Affairs specialist. I continue to be impressed by people that I meed who spent time in the Navy. I worked with various people during the course of filming this video and they were all top notch.

Here's a video about loading and firing a harpoon missile from the USS Olympia (I filmed the impact):

Read more about torpedo tubes here:

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❓Mystery Item (just for fun):

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My Multi-tool:
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  • SmarterEveryDay

    When I boarded the USS Toledo I did not know I was going to be given the opportunity to crawl down a torpedo tube. Honestly I was thinking I would have a conversation with someone about the periscope or something but it did not occur to me that when you are under the ice you cannot use the periscope. When they asked me if I wanted to see a torpedo tube I didn’t realized I had no clue how they worked. Most people overlook this seemingly simple system, but when you take a moment and analyze it you will realize it is quite complicated. I hope this is the level of detail you were hoping for in the submarine series, because this is what gets me excited. I haven’t decided which video is next but I’ll tell you this, I did not know one of the methods they use on board to make oxygen. Anyways, thank you for watching the series and please consider subscribing if you feel like this is worthy of your time. I don’t know if you’re the type of person that likes to share videos with other people, but I would appreciate it if you could pass the submarine series on to a friend or two. As always, I would like to express my gratitude to people who support Smarter every day on Patreon at . I am thankful for the support, and the next video has a special surprise for you, the Patrons.

    • robert ruchalski
      robert ruchalski


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      Thạnh Phạm

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      XD XD XD

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    • Peter Devereux
      Peter Devereux


  • Roca Hudson
    Roca Hudson

    14:46 when he actually does into the tube.

  • Joe Welnick
    Joe Welnick

    Cool idea here !!! They should put a camera in that torpedo tube so we can see the torpedo being fired :) if it's possible that would be pure amazing!

  • bladecup

    Are you sure you will not shoot me while im inside?

  • joselo 3112
    joselo 3112

    Can u imagine having to know this technology in the late eighteen century

  • Bodhi Porteous
    Bodhi Porteous

    Goes down torpedo tube Door shuta Yeetus Delleto

  • Luke Charters
    Luke Charters

    I got to climb into a torpedo tube... And Got fired out the other side xD

  • Fred Jones Johnson
    Fred Jones Johnson

    The first thing that anybody would do you did "now here's the Torpedo Room can I touch it"

  • Scoopy Doopy
    Scoopy Doopy

    Omg imagine ur in the torpedo tube and the guys decide they don’t like u so they shut the hatch , fill the tank with water and drown u , then open the other end of the hatch and dump ur body into the artic 😁👍

  • Charly Dat Duc Lai
    Charly Dat Duc Lai

    You do know that this is highly classified, right?

  • Simon Dasilva
    Simon Dasilva

    Nice torpedo Destin 👌.

  • Ivan Bustelo
    Ivan Bustelo

    But is the torpedo self propelled? Otherwise how does it maintain speed

  • John C
    John C

    Fascinating. Being prior AF, I find this very enlighting and worthwhile to view.

  • arbilois


  • Nick Georgie
    Nick Georgie

    Thank you very much indeed. Great experience.

  • Sa Bro
    Sa Bro

    Amazing channel, brilliant.

  • Stone Sanders | LLN
    Stone Sanders | LLN

    And I’ll sign my name there; yessir So I will go down the tube; yessir Ok and what does TM2 mean; yessir

  • Nathan Blad2
    Nathan Blad2

    POV you are a spy: Write it down write it down

  • Plague Birb
    Plague Birb

    id be scared of them just closing the hatch and letting the water come in.

  • Pék Backer
    Pék Backer

    14:58 i feel this at home ...

  • M W
    M W

    Whaat! I never would have thought to see an actual torpedo tube. This is so cool!

  • Matthew Newton
    Matthew Newton

    Destin : ‘can I touch it?’ Also Destin : ***already touching it as he asks***

  • aaaht

    I may have missed it, but can the torpedo tube breech door be unlocked manually if there is some sort of problem with the hydraulics on the door? I figured if the torpedo itself can be loaded manually and not hydraulically rammed, then does the same apply to the door?

  • Samuel Ray
    Samuel Ray

    Before I watch your explanation of how a torpedo launchs this is hoe I thought it would work when tge hatch is closed and opened air is propelled outwards making it start its propellant and shooting it out of the tube

  • bforkner1

    Plot twist: he gets fired out the torpedo tube

  • Macht

    Im claustrophobic for sure.. but I think I would be ok doing that, because I know the tube isn't going to collapse on me.. Though my type of claustrophobia is probably different than others.. I think mine originated from crawling around in snow forts as a kid and having them collapse on me lol.

  • micky wanderer
    micky wanderer

    Before lock out chambers that is how divers/SEALS got out of the sub.

  • Sam Re
    Sam Re

    Destin making recruitment ads for the us navy ... what a world we live in.

  • The Chosen of Mystra
    The Chosen of Mystra

    This guy is a genius

  • wazza33racer

    It was a common problem in some early submarines, that after firing a torpedo at periscope depth (which is rather shallow) that the submarine would accidentally broach the waves ;)

  • Lee Scales
    Lee Scales

    That ship didn't want no smoke with that torpedo

  • The Robison
    The Robison

    I didn’t know Devin had been in the military field before.

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    Lalita Tiwari

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  • Danstrumentals

    It’s awesome to learn about the submarines, I work on building them and we do install just about every part. Torpedo tubes are one of the things we install. Installed one tube my first day on the job !! Love your videos! AMERICA BABY!!!!!

  • jmalmsten

    Considering my main knowledge of subs come from Das Boot... This thing looks very clean, relatively silent and roomy :P

  • eircomkk

    I'm claustrophobic and watching this series makes me so uncomfortable, esp the torpedo tube but i cant stop watching cause its very entertaining.

  • K Kap
    K Kap

    i used to fall asleep to youtube like true crime shows, i should have never stumbled across this channel cause its so interesting im losing so much sleep


    I love the Mythbusters style intro drawing

  • Embedd


  • Waterhail77

    They then closed the door and shot me out

  • Eugene Elkin
    Eugene Elkin


  • Kyle Harvey
    Kyle Harvey

    2:38 that guys face is great

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    Katherine Montgomery

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  • Brian Nyamweya
    Brian Nyamweya

    Destin: where do i sign? Captain over the intercom: battle stations!! battle stations!!!

  • RobGcraft

    “I’m gonna touch it! :3” ^IMMEDIATELY CUTS TO NEXT SCENE* Lol I wonder wtf happened

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  • Mark A
    Mark A

    I can't think of anything worse than getting stuck at the end of a torpedo tube

    • Mark A
      Mark A

      There's at least 5 ways to be immediately doomed

  • Anon54387

    5:15 Admiral Rickover over to the right and (eek!) Jimmy Carter in the center.

  • E A
    E A

    I felt so claustrophobic

  • E A
    E A

    China taking notes

  • Neeraj CS
    Neeraj CS

    There's no difference between A Space station, a nuclear Submarine and a Nuclear reactor's control room that's all fascinating !

  • Salzaabi57

    lol what if this dude was an impostor and closed the torpedo tube on smartereveryday

  • robert reis
    robert reis

    The locking bolt after 9 months 🤰

  • Hunter Rivera
    Hunter Rivera

    I’d be so claustrophobic in the tube man it’s not even funny😂

  • Khel Venturi
    Khel Venturi

    new Mr. Beast challege idea 24hrs on a Torpedo tube

  • barnmaddo

    Google says they carry like 25 torpedo shaped things. I only see two in that room? With maybe room for another six, but the space is being used for storage instead? I wonder how many they can quickly launch. Some look like they are basically lined up to be quickly loaded and launched, but some they must have to move around laterally or something.

  • Rraptor1012

    The intros on these videos makes me think of Mythbusters

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    Lisa Resnick

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  • Xobra Den
    Xobra Den


  • superhack0_o

    Yes sir........

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    Nasarif Kongsin

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  • No

    Poor bender, forever lost in space.

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    Kristi Robertson

    The nauseating bladder locally weigh because drill incidentally live through a sophisticated panties. limping, snobbish belt

  • Doomkiller Gaming
    Doomkiller Gaming

    Me sees him(hopefully him) drawing Also me: how’s he good at everything

  • The Guitar Hobbyist - Stringed Theory Studios
    The Guitar Hobbyist - Stringed Theory Studios

    The part where he got into that torpedo tube. My worst nightmare!

  • kebman

    Another reason to not let out air: It creates bubbles. And bubbles create noise. And noise lets the enemy know where you are.......... xD


    I've been a submarine nut since I was a kid 50 years ago and first read "Up Periscope" and "Run Silent, Run Deep". Seeing the inner workings of this modern torpedo tube - probably not much different from those on the Gato and Balao Class Fleet boats of WWII - lets me see for myself what the narrative in those novels was referring to when describing the procedures for firing the Mk. XIV steam torpedo. I now exactly what the WRT tank is. Thank you so much, for posting this, and thank you to the officers and crew of USS Toledo for making it possible.

  • Matt Power
    Matt Power

    i am so enjoying your shows thankyou for posting

  • Moises Sequera
    Moises Sequera

    Wow as much as you never expected to crawl a torpedo tube, i never expected to see and understand so clearly how it all works and how it looks inside.

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  • Michael Horwitz
    Michael Horwitz

    Can anyone tell me what like you do on a daily basis say if you’re just like a weaponsloader I sawcalot of these people just standing around since there’s nothing we hear about what do they do all day

  • Lord Of The Rims official channel
    Lord Of The Rims official channel

    Is it just me or does Destin look like Dwight D Eisinhower who founded NASA

  • danteelite

    I'm excruciatingly claustrophobic, but this was so interesting I sat through it tapping and fidgeting and biting like weirdo anyway. Nothing like science to make you face your fears!

  • Digital Design and Innovation
    Digital Design and Innovation

    The amount they say sir sounds really sarcastic

  • Charles Soto
    Charles Soto

    @TuffGuyVladimirP has joined the channel...

  • NeonGreen19


  • Devin Gorham
    Devin Gorham

    The dysfunctional dill taxonomically fasten because lynx coherently obey unto a torpid michael. enormous, unique venezuela

  • Capitalist Warrior
    Capitalist Warrior

    Does the volume of the aux tank dictate the maximum number of torpedo launches?

  • Sam Miceli
    Sam Miceli

    I was claustophobic before you went in the tube... ⚓

  • Bennybull99

    Could totally close that door

  • kyle willis
    kyle willis

    I could not crawl in the torpedo tube id be to scared of what could happen

  • That utah girl
    That utah girl

    You would thing kids aren’t really interested in this stuff but I am

  • Brain Inavatnow
    Brain Inavatnow

    Torpedo tubes have always been a favorite place for man on man love making on US Navy submarines. I have many fond memories when I was a submariner.

  • IQ Ninja 02
    IQ Ninja 02

    'Yes sir' quote by torpedos man mate

  • Ovrsized

    Channel name:smarter everyday. Climbs into torpedo tube

  • Lighted Sky
    Lighted Sky

    Me searching for this exact video, on explaining how a torpedo is launched! Thank you!

  • gabbyllrocha

    Big NOPE on going into that tube

  • Alex Partridge
    Alex Partridge

    Generally a very good series and informative for those who’ve never been on a boat. If you do another series, you can leave of the “nuclear”…all of our boats are nukes now.

  • christopher garcia
    christopher garcia

    Scenario.....torpedo is in the tube but a command has been given not to fire it. Does the torpedo remain in the tube? If it is not, how is it extracted

  • Matt Braaten
    Matt Braaten


  • Ramona Hopewell
    Ramona Hopewell

    These are the best videos. I love it☺️

  • Hall Monitor of the day
    Hall Monitor of the day

    I love how Destin has to touch everything! He’s my spirit animal - touch 🤚

  • Toby Morse
    Toby Morse

    how many times has he said '' rock'n roll'' and respect in this series? haha

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  • Sappy Ser
    Sappy Ser

    you need a 360 camera destin.

  • Phoebe Jones
    Phoebe Jones

    It reminds me of when I have an MRI.