Inside a Submarine Torpedo Tube: USS Cod Demonstrates How We Fired Fish During WWII

[@USSCod]

You can see part one here! kzbin.info/www/bejne/e6KzeYGbjb10aLssi=mfsuJb8t_4Gyn2zd

[@BB12659]

Like this Paul, from loading (Part I) to the demonstrated run of a fish (Part II). All boats entering COD's area of patrol should be aware, she is prepared.

[@lexington476]

Amazing all this still works. A testament to the Cod's caretakers.

[@brealistic3542]

Hay with a pillow and a blanket a torpedo tube is a very comfy place to get a quiet snooze ! Think about this. They can't give you chores if they can't find you.🤗

[@peckelhaze6934]

Well, that surprised me. Far more physical than I thought. Fantastic explanation.

[@emmabird9745]

Hi Paul and the gang. Your videos are gold dust, I'm learning so much of the details of submarining from them. Thanks. Great to see Evan on the other side of the camera for once. Great hello to Evan.

[@Johnjordan-p9g]

Thanks to the current Cod crew. I enjoy learning the details of operating the sub. It's more than a Hollywood picture show. Thanks.

[@mineown1861]

So that's what opening outer doors looks like . Very interesting video , thank you.

[@klsc8510]

Paul: "Now with Evan we will demonstrate this with tube 6." Evan: "I QUIT!"

[@tomswisher5305]

Evan has got serious cojones! Wouldn’t catch me anywhere near getting in there, especially with the hatches closed.

[@glennkleiber5799]

"we Sunk a Truck!!"

[@studinthemaking]

I get this reference!

[@Ghauster]

Sherman's march to the sea.

[@georgesaliba7463]

The movie Operation Petticoat.

[@Ghauster]

@@georgesaliba7463 A great movie that shows the dedication of service members with a large dose of humor.

[@donaldparlett7708]

Surprising how noticeable the ratchet is on the outside .

[@paulfarace9595]

Yes! We need to compare time and loudness with the standard wrench!

[@Fearls1]

The ratcheting action sound was louder than one would think. Could a Destroyer hear that clanking from the men opening the tube?

[@tomtrenter3208]

Not really unless the WW2 sonar was trained directly at the sub and at close range. The clanking and banging of the wrench makes more noise.

[@paulfarace9595]

If everyone was absolutely silent and no other machinery noises were present the answer might be yes. But that situation never occurred ... but later subs did get hydraulic power upgrade.

[@paulenterline3107]

It seems like the officers have to give serious thought and attention to the timing of the opening of the tubes. You wouldn't want them open if you're about to be depth charged, right?

[@kolt4d559]

Great shot Evan, interesting the numbers on the screws at the end of the tube

[@paulfarace9595]

Numbers and EBCo logo!

[@lexington476]

I was waiting for Paul to yell 'Torpedo...Los!' 🙂.

[@taofledermaus]

Now I'm curious how they dealt with the tube full of water before opening the breach door.

[@Melanie16040]

There were valves to flood the tube with water and equalize it's pressure with the exterior water before the outer door could be opened. Also, valves and an internal tank to dump a tube full of water into to empty the tube and allow for reloading while submerged.

[@DrSchor]

excellent and unique. cant see this anywhere else. learned something new about no doors in the rear.

[@andrewd.1113]

Paul, if you are going to do Outer Door openings in the future, you might want to make a Mock-up of a Torpedo nose, having it just sticking out, so people could get the full effect of their size. I was amazed to see the Serial numbers (?) on the Screw heads. Thank you and your crew for another Great Video!!

[@paulfarace9595]

Evan gets the credit for becoming a human torpedo to get the shot!😅

[@guidor.4161]

Definitely one of the coolest videos so far

[@tomtrenter3208]

The torpedo tube opening linkage is connected to the outer door and the shutter is linked to the outer door.

[@randyogburn2498]

Tube 2 fired electrically. Running hot, straight & normal.

[@Fred_Raimer]

I see that I'm not the only person here who watches "The Silent Service!" LOL

[@donaldhill3823]

I used the number 3 TT as a short cut between the Torpedo Room & Dry Dock basin during maintenance periods. It was a bit greasy but saved time. Normally both hatches can’t be opened at same time unless interlocks are removed.

[@ruikazane5123]

Battleship NJ got a mock main gun shell, Cod got a dummy torpedo...what time are we in!

[@craigbathurst1185]

Sounds like a Three Stooges movie

[@nickgriffin5835]

Reminds me of Ryan going through the 16 inch barrel!

[@Fred_Raimer]

You guys are awesome!! What wonderful cinematography - it was super interesting and fun! Thanks

[@Russojap2]

Wow, very interesting! Thanks for the video!👍

[@chrismaverick9828]

Excellent video. I had forgotten that the Gatos were manual only on the tube doors. I'm sure the torpedo-men got insanely fast at turning that Y-bar.

[@kirktrof]

Thank you. I always wondered about the fine details

[@Ronaldl2350]

Very cool. I have seen a couple of WW2 subs and wondered how that was all done.

[@panachevitz]

You know, after seeing Ryan Szmanski from Battleship New Jersey wiggle through the entirety of a 16" barrel, I bet a 21" torpedo tube would be child's play for him! 😉

[@1boortzfan]

Another great video Paul. Thank you for showing all the details.

[@king_br0k]

U 505 in chicago is on display with a torpedo exiting the tube

[@paulenterline3107]

All my life watching WWII submarine movies I've wondered how the outer tube doors work. Are the sliding doors? Are they flaps? Outstanding content. Thanks.

[@kevinkoepke8311]

Thanks, Paul and Crew!

[@Chilly_Billy]

A-Gang must be an abbreviation for Attitude-Gang. 😉

[@paulfarace9595]

He's very camera shy...😅

[@barryolson3998]

Nice work, Evan!

[@TX-biker]

After launch- When outer door closes- How is the water removed for the inner doors to be re-opened?

[@paulfarace9595]

Drained to the WRT tank... which means the sub doesn't get lighter as you shoot fish.

[@dominicwroblewski5832]

The shots in the tube gave me MRI flashbacks. I am extremely claustrophobic, and those scenes drove me crazy. Why didn't the brave fellow in the tube just crawl out the front instead of back crawling through the tube ? I've gotten so bad in my old age that I can visit the U-505 no problem but no way in hell I could go below on the Cod.

[@chrismaverick9828]

Few hand-holds and the risk of falling into Lake Erie. It'd be like crawling out from under a porch, over the railing and onto it, using only your arms and not touching the ground.

[@alangobel8513]

That was a Great Video!

[@timjjeurink217]

Paul, thank you for taking the time to show the doors opening and closing, is it the same process on the stern tubes? I’m only asking because I know you have those longer than normal tubes in the back?

[@paulfarace9595]

Yes it's the same for the aft tubes. But even easier because you're not moving heavy shutters.

[@pilotdane]

We can hear the sound of the ratchet opening and closing the door. Was the sound detectable in the water with WWII technology?

[@markrhoades3421]

Incredibly interesting. I always thought that the shutter door and the muzzle door opened separately.

[@lexington476]

Any idea when Cod fired her last torpedo?

[@jrmotorsports55]

Very cool, thank you for showing this. Planning on coming up in a few weeks to see her in person. Looking forward to it!

[@nigelterry9299]

Cor! You're braver than me going in there......

[@craigbathurst1185]

If the boat got into trouble and got stuck on the bottom and could not surface, could the torpedo tubes he used as a war of escape?

[@paulfarace9595]

Yes they could but we have real escape trunks (air locks) for that purpose 😮

[@anthonylowder6687]

Just curious with both the outer doors open and the boat moving forward at a good interception speed how much pressure is the inner door on a torpedo tube experiencing with all that water being forced down the tube?

[@paulfarace9595]

Depth pressure is the only real issue. Forward momentum for a fleet sub is at best 9 knots and doesn't pise an additional amount of stress.

[@johnslaughter5475]

Great video, Paul. Great conclusion on how the fish were loaded aboard the sub. BZ to Evan for crawling the length of the tube, both fore and aft. It seems the manual system would be a liability in a combat situation, especially if a destroyer is coming right down your throat. Two questions, Paul. How was the water drained from the tube after firing? What was the maximum depth from which a torpedo could be fired? I know that some were fired using sound bearings while below periscope death. Thanks.

[@paulfarace9595]

We need to see if the Y Wrench is faster. The tubes are drained to the WRT tank.

[@johnslaughter5475]

@@paulfarace9595 Thanks. What is the maximum depth from which a torpedo could be fired?

[@tonydeleo3642]

Is there an indicator in the torpedo room to indicate outer door fully shut?

[@paulfarace9595]

YES there is an indicator @

[@charinabarcillo9160]

Always enjoy your post Rtd USAFR Sr Flight Nurse from Philippines Did the Cod ever deploy out of Subic

[@Elcicikos]

How is the connection between the torpedo tubes and the bulkhead sealed? The torpedo tube is screwed in like a screw?

[@jphil-mk8bw]

Weird that Gatos and equivalents were cranked open

[@chrismaverick9828]

Designed in the late 30's so was likely considered an unnecessary extravagance for a boat that was supposed to be very deliberate in its sneak attacks that were in support of a nearby fleet. Had they known that it would literally be a boat alone against heavily escorted small convoys and the rapid pace of the action it entails they likely would have taken the extra effort. There is also the additional load and complexity on the hydraulic plants to consider. Given that the torpedoes were prone to flooding if left in a flooded tube for too long, it's amazing that they were able to wait as long as they did to open the doors and still have them ready.

[@garyhock2043]

You said Electric boat & Manitowoc stopped putting shutters doors on stern tubes. Does that mean Portsmouth & Mare Island Government Yards still had Shutters on Stern tubes?

[@paulfarace9595]

Yes. Pampanito has video of their aft tubes cycling !

[@Wvanbramer]

How does the torpedo seal in the tube? Or it doesn't and enough air is injected to push it out with a loose fit?

[@dennisverhaaf2872]

Would have like to see how to flood the tube and how to empty it again is there a safety so both can't be opened at the same time?

[@paulfarace9595]

The WRT tank is worthy of its own program.

[@xstarwolfx]

Curious, what about safeties when the doors aren't fully open or closed?

[@paulfarace9595]

Only one door can be opened at a time. The opposite door can't move until the other is locked closed.

[@stever4181]

After the fish was fired I imagine the tube was full of water. What happens to the water in the tube when reloading another fish?

[@tomswisher5305]

After a shot is fired, the muzzle door and shutter are closed, and the water is pumped out before opening the breech door.

[@Ganiscol]

Evan the pipe cleaner 😅 Is there any relation to Paul? Evan sounds a lot like Paul - it may have been the confined space of a torpedo tube, though.

[@JVoltCUAF]

during the war how fast did they open the tube for firing it seems to have taken that kid a while to get it open.....id imagine in wartime it was faster?

[@paulfarace9595]

That kid is the same age as enlisted men in WWII submarines. It was that fast/slow.

[@TwentytenS4B8]

Weren't the tubes flooded before opening/firing?

[@jrbship]

Poor Evan lol

[@rogervincent8314]

how much air pressure is used to eject a fish?

[@paulfarace9595]

Up to 600 psi. Allows for a depth of about 100 feet.

[@rogervincent8314]

@@paulfarace9595 with 600psi per tube, and with 4 fish being discharged at one time that's 2400 psi, is pressure being compressed at that time or is there a high capacity pressure tank and what is the max pressure capacity of that tank? are the compressors always electrically operated or when surfaced do the engines run the compressors? since compressed air is also used to surface how much air pressure is need for a boat to surface.

[@paulfarace9595]

There are impulse storage bottles (in the ​superstructure) that provide the compressed air to eject fish. Six forward and four aft. Only one fish is fired at a time. Never simultaneously. @rogervincent8314

[@Melanie16040]

@@rogervincent8314 Usually submarines use their dive planes to drive to the surface at which point ballast tanks are cleared of water. Blowing ballast at depth is an emergency procedure.

[@tomtrenter3208]

​@@rogervincent8314you are confusing pressure with volume.

[@bigsarge2085]

⚓

[@TonyGilbert1]

A sub sunk a train anything can happen

[@tomhenry897]

Interesting

[@rickchapman9232]

If the torpedo is fired by compressed air then when you open the tube how does the air stay inside?

[@exsubmariner]

When the torpedo tube is loaded with a weapon ready to fire first you had to flood the tube with sea water once the pressure is equalised you open the bow cap. the tubes is fired by an air reservoir pushing compressed air into an operating tank filled with sea water. this inturn pushes sea water into the rear end of the torpedo tube at 2500 PSI which pushes the torpedo out of the tube . This water RAM system prevents bubbles from reaching the surface The bowcap is then shut and the torpedo tube is drained down when empty the rear door can be then opened to reload

[@scottgrimwood8868]

Thank you. I thought that was the process but it wasn't mentioned in the video.

[@exsubmariner]

@@scottgrimwood8868 these lads do a great job on the cod but they can be a bit Troy tempest when it comes to technical data retired Royal navy submariner

[@paulfarace9595]

We're not qualifying new rates.. We're having fun and illuminating unseen aspects of fleet subs for the masses....​@exsubmariner

[@tomtrenter3208]

@@exsubmariner Close, but the US boats in WW2 tubed use 600PSI air.

[@exsubmariner]

I can safely say no submariners were used in the making of this video any submariner worth his salt would refer to a torpedo as a weapon or a fish as a sonar rating myself you would only use the word torpedo if it was coming towards you

[@tomtrenter3208]

As an old Coast Guard ST we would refer to a torpedo as "hydrophone effect, bearing 045°" followed by !@#$

[@paulfarace9595]

Thank you for your service... And bless your heart ❤️ 😅

[@JoshuaTootell]

We didn't even have ST's 25 years ago ​@tomtrenter3208 😂

[@tomtrenter3208]

@@JoshuaTootell Coast Guard did away with sonar/ASW in 1991 or 92. The navy subsidized us because it was a cheap way to have more ears listening. When the Berlin wall fell everybody wanted to cash in on the so called "peace dividend" so we lost a rate. Funny thing is nowadays chasing those damn semi submersibles hauling dope we could use the help finding them. They must make one hell of a racket!

[@exsubmariner]

@@JoshuaTootell hi Joshua does st stand for sonar technician. I'm a britt so I wouldn't know

[@michael-dm2bv]

🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@ericsimons4976]

Ok, so once the fish is launched, the tube will be full of water. How do you get the water out of the tube so you can load another fish? Also, Paul, man you're hard on Evan. Dummy for a torpedo? Cmon.

[@paulfarace9595]

Evan is still in tube 2 crying ... 😢 If he weren't there we could show you how the tubes are drained to the WRT tank. 😂

[@PaulMSabol]

OOPS your fired torpedo 2 out of tube 1

[@paulfarace9595]

How so?😮

[@daffyduk77]

Closing the tube outer door & "cover" seems horrendous, were all nations' subs like this in WW2 ? I know brute-force manhandling were very much the norm back in the day

[@flotterotto4491]

Woundering, how many fishes were sent out by Codd in her lifetime....

[@paulfarace9595]

It's in our website!