This is one more example of this channel giving me information that I didn't even realize I wanted to know, but did. And also, as soon as that doggie door was opened, I knew Ryan had to crawl through it. It just had to happen.
Every merchant ship I worked on (20yrs ago now) had some interior doors that had a section that was lightly held in place so it could be kicked/bashed/removed in a pinch. It was usually spaces that only had one way in/out like staterooms. Had to use it once to get into a stateroom when a crew member suffered a medical emergency in their room and the door was locked!
Came down here to say this. Still true today, and like you, the only time I've ever seen it used was to break into a stateroom for a medical situation.
Question for both you guys: During the medical situation, was it pretty instinctual to bash through? Or were there a few seconds trying the door and thinking how to get through? Probably a pretty dumb question. I just have no idea if you’d go through some sort of practice/training exercise per new ship, similar to life raft exercises.
Also, it's easier to crawl through something low rather than try to jump through something located at chest height and fall onto the ground on the other side.
their position has nothing to do with smoke. that might be a coincidental benefit but how on earth would you kick out a "kick-out" panel much less climb through it unless it was located low? its not called a "headbutt-out panel"
The bigger question would be why make them so small, but the answer to that much the same, it keeps sailors from needing to stand up into the smoke to unfasten dogs on the top of the door, and minimizes how much smoke would follow the sailers through.
@@GremlinSciences if they were larger the door would lose rigidity and could warp along with the doorframe and jam the doggie door. which is the entire problem the doggie door is there to solve. and the larger the doggie door is the further it has to swing in order to open, making it more likely to be blocked by something in the way. they dont need to be any bigger than they are because theyre already large enough for a person to fit through easily.
@@Hephera It's not actually an issue of bulkhead integrity. There's plenty of space available for them to thicken and reinforce the door panels before they start hitting the flange during operation, so they could easily reinforce the doors to make the emergency hatch wider, and making the hatch taller wouldn't need much of any reinforcement until they almost double its height. No, the bigger issues are with safety and survivability. Making the hatch larger means more airflow while hatch is open, not only feeding the flames more but also letting more smoke through into the rest of the ship and increasing the chance that embers make it through to spread the fire into other compartments. In the event of flooding the issue is even worse, the larger hatch means more weight that needs to be lifted to reseal the bulkhead and the larger the volume of water that can pass through if the hatch remains open.
I heard about the torpedo thing. British merchant seamen would go to sea with coconut fiber mats which they would drape over the cabin doorstep before going to bed so they wouldn't be trapped if the ship was hit. The strange thing is, many of them continued to do this long after the war was over. I spoke to a guy who was a kid on board a ship in the 1950s. He couldn't understand what was going on with the old guys and their coconut mats. (They only talked about it when they got drunk, and he found out later when he was old enough to drink with them.)
Interesting. I honestly didn't expect that to be reason, but it makes perfect sense. The door frame can bend, and lock the door shut, but that wouldn't happen to the smaller hatch, which is not part of the structure. In architecture there's similar things like that where you isolate certain features for similar reasons, but for earthquakes. Neat stuff.
Why do people write their name at the bottom of a comment? Its isn't a letter, it's strange. First, I don't know why anyone is using their real name unless they are a public figure or aspiring to be or want every stranger in the world to know who they are and be able to find out everything about them. Second, Why is a comment being signed like a formal email or letter?
on modern merchant ships, we don't have those on the exteriour doors anymore, but we do have them on the interiour doors. usually disguised as ventilation grills for the circulation of the AC air. but they can be popped out to be used as emergency escape hatch to get out of your cabin incase the door is jammed or blocked or what ever.
I miss the Dutch doors (two part) we had them on the old tug that got taken out of service a few years ago sadly. Those things were great you could get some ventilation and still keep out most of the water. Seriously let’s bring those Dutch doors back they were great!
More than one sailor has died, though, because he had to be locked into a quickly flooding compartment on a warship in extremis. Escape, though obviously desirable, can be rendered impossible if it jeopardizes ship watertight integrity. Then it becomes a matter of saving the many at the cost of the few.
@@nathanfisher6925 On the door shown here, there were normal dogs, with handles on both sides, as you want the doors to open outwards, otherwise, you may have a death trap, where everyone is struggling to get to the door, and it prevent the door from being pulled inward. Also, in water tight areas, they may build up enough air pressure, that would hold an emergency door closed, so the door is located on the low pressure side, which would require the dogs to work from both sides of the door, in an emergency.
I also think it has something to do with fire safety as well. Smoke Rises and being able to get under it as much as you can to a safety area would or a safe exit I should say. Probably not such a bad idea.
I think escape trunks/doggy doors are necessary because in a combat zone, and sometimes even in training, the most unexpected things can happen. Especially considering the basic goal of modern militaries is to “kill people and break stuff” as one of my mentors used to phrase it.
Spruance Class Destroyers like mine had small doors in large hatches below water level. They would allow you to maintain high levels of water tightness and still allow you to get to lower levels. The large hatches would closed when all the time in unfriendly waters. The small door would be a scuttle hatch. Again all over modern ships.
I really appreciate all you and everyone else do on this channel. While I'm too far away from Battleship New Jersey to stop by at the moment, some of your videos were interesting enough to my wife that we both went up to Battleship Cove to see the ships there.
its exceptionally good design to have a way to make an opening u can open by pushing in the lower part of a door. Not just for evacuation, it also makes fire fighting much easier and inhibits the spreading of smoke. Modern ships might not have them because other firefighting measures than firefighters in a ship have come into fashion (for good reason). So while i can see getting trapped sailors out as the main reason, in a modern ship with automatic fire suppression a trapped sailor is in a lot less danger than in times past. Im also pretty sure than most areas that are crewed at all times in modern ships have some sort of fire hatch as well.
Reminds me of 9/11 where the same problem was encountered in both the towers where doors either couldn't be opened or wouldn't properly close. Warping also caused problems for the elevators and the hvac systems as well.
Makes sense for the battleship not to have them. If it got hit with something powerful enough to both penetrate the armor and warp the bulkheads, the sailors are probably dead already.
I imagine some retired sailor watching this video, one eye twitching slightly every time Ryan refers to one of the ship's _hatches_ as 'doors'. I'm a filthy civvie though, if I saw Red Oak Victory or New Jersey in the flesh I'd likely exclaim something to the effect of "That's a big-ass boat!". Especially New Jersey, what a monster!
As a Navy Retiree, I have too many Sea Stories... but one, getting woken up by people franticly trying to escape the space and finding the main hatch and emergency scuttle both locked with padlocks on the outside and the OOD ordering ALL hatches to below the waterline being closed, dogged and locked .... because some idiot shot off a War Shot Torpedo and the only ship it had to lock onto was ours... I got one damn rule, if I'm asleep and we're all about to die? Let me sleep thru that experience .... so far, I have given that rule numerous times, no one honors it. So I got woke up by a bunch of jibbering idiots "WE'RE ALL GONNA DIEEEEeee! They shot off a War Shot and its locked onto the ship!" and all you could hear was the torpedo seeker head locked on and then.... ZZZZZTTTTTT *THUNK* ZZZzzzzzzz *CLICK*. It wasn't a War Shot, it was a RexTorp Runner, an exercise torpedo with a seeker head and an operating engine. I am still P***ED about that. They had screwed up the paperwork on the torpedos and had loaded my RexTorp in their tubes and given me a 'RexTorp LOG' (no seeker, no motor, just a sea dye marker and enough buoyancy for it to bob) and the scored Trop Drop for my Det's Torp Drop was scored a ZERO.... so, a ZERO score after working nonstop for nearly 20 hours to get the helo up to drop it, finally get some sleep only to be woken up by stupid..... OHP Class Frigate escape trunk from the lower berthing is actually nicer than the berthing.
Frames on watertight doors in warships are very strong and made of steel as is the rest of the ship which has many compartments adding to the total robustness of the ship. Warships also have very strong round escape hatches in the deck head just big enough for normal weight crew to go through, or at least they did during my time at sea. In the 70s and 80s a lot of warships were built with aluminium superstructure to reduce top weight but sanity has since prevailed and they reverted to steel which is much harder to bend. Though bending was not the reason they reverted to steel. It was because during the Falkland war the RN had a lot of problems extinguishing fires on ships with aluminium superstructure.
Should emergency escape doors be included in ships today? I think the answer must necessarily be "that depends on the ship type." Ships that might sustain or experience deformation of bulkheads that could jam doors closed YES. LCS types come to mind as well as naval auxiliaries built to commercial vessel standards.
Fast sinking ships go vertical and the main hatches can be hundreds of pounds, escape scuttles are lighter and easier to open if the ship is vertical. Most modern ships have a main hatch and an escape hatch somewhere in the space.
My brother helped with some restoration work on the Red Oak before taking a job in Kings Bay. He use to have some radios from Liberty Ships... Not sure if he took them, they were pretty huge.
My thought had been it would be because of the potential of water pressure pinning the large door closed versus the smaller one in the case of a flooded section, rather than frame warping.
The problem is there are just so many compartments on most modern warships, period, let alone a mammoth like the NJ, as vs seven on the ROV. Building an emergency hatch into hundreds of doors would add a huge amount of weight, add a point of failure that could compromise the watertight integrity of that door and be a PITA to inspect since it's so low down on the door. I'd argue the risk of a hatch failing and possibly dooming a ship with thousands of crew far outweighs its utility.
@@alphax4785 This is true But the prospect of condemning hundreds of men and women to die is just as bad I understand the necessity of sacrificing some crew to save the rest but shouldn't some of them be given a fighting chance to survive if possible?
@@dragonweyr44 Again though, the considerations for a merchant marine ship with splinter and small arms protection around the important spaces for armor at most, a crew of around 99 men and massive cargo holds where a torpedo hit is probably a death sentence for the ship at least is utterly different from an Iowa class BB with a crew compliment of over 2000 men in WW2 in a ship that is a beehive of compartments. I've visited the NJ and trying to count the number of doors would be a several day job... now add a hundred pounds or more for a warship grade (the doors on the NJ are far more solid than the ones on the ROV since ROV is not supposed to be in combat while combat is what the NJ's made for) 'escape hatch' for each one... you'd probably have to sacrifice an inch of armor off the main belt to compensate for the weight gain... not a good trade off.
They are useful , especially if you end up locked into a compartment . Major bulkheads don't have them of course . New Jersey is pretty robust and probably built before the idea took hold .
I think compromises are in order here. All watertight doors on lightly-built ships (supply ships, corvettes, destroyers, light cruisers) should have an escape trunk or doggy door while on heavier ships (heavy cruisers, battlecruisers, battleships, aircraft carriers) they're unnecessary.
Older cruise ships that I've been on such as premier Cruise lines oceanic (sadly both the cruise line and the ship are both no more) Had the kickout panels in many of the doors
In the WWII movie Action in the North Atlantic there is a scene early movie where one of the crew tells another of the crew to not close the door to the berthing room for the reason that they could be trapped. Later when the ship is torpedoed one of the crew is trapped.
I would say the Iowa class ships have something similiar. In some watertight hatches there is a round scuttle that you can open and pass through without opening the entire hatch.
Very informative video. One suggestion: don't turn your head from side to side so much while you speak, it makes the volume go up and down as you face towards and then away from your microphone
HI RYAN,, VERY INTERESTING ,,!!!! THIS ISNT THE FIRST TIME I SAW THESE DOORS.. ON THE MOVIE ,,, POSIDON ADVENTURE THEY SHOWED THESE DOORS ... TRYING TO GET TO ONE COMPARMENT FLOOR TO ANOTHER ,, GOING TO SHAFT ALLEY.. BUT WITH THE SHIP UPSIDE DOWN ,, BEATING THE SHIP BEFORE IT SANK GETTING TO THE ENGINE ROOM TO THE 1 INCH STEEL DRIVE SHAFT ROOM PEPPLER ROOM TO GET OUT,,, ,, CHECK IT OUT!!! YOUR NEVER TO OLD TO GET THREW THEM RYAN.. THANK YOU RYAN!!!! LET ME KNOW ,, WHAT YOU THINK,, VERY COOL....
Within the limits of needing to contain flood / fire damage, yes, secondary means of egress should be part of any design, be it a warship, submarine, aircraft, or one's own home.
Yes I think they still should have the doggie doors it's a way for people to get out all right this is Bob from Vero Beach Florida God bless and stay safe and have a great week
This is an issue on airplanes as well, a hard landing could distort the frame, jamming doors. There's a similar escape opening on the cockpit door. Otherwise they take measures like using curtains, requiring doors be open or compartments be vacant during landing, and leaving a gap between the door and ceiling so they can displace upwards.
Hey Ryan, your videos are great, but I see you're not using the mic correctly, you can hear at the end of the video when you turn your head towards the microphone how the sound gets better. You need to point the microphone towards your mouth, bot away from it. If it has a wire, that will usually mean that the wire is hanging downwards. Also try to move the microphone closer to the neck V-line.
Not sure the exact model mic that Ryan is using (looks like the DJI wireless)...but many of those type mics are omni-directional (does not matter where you aim it). I think the issue we are hearing is just that the mic is way off center line--this can make head turning change the sound dramatically.
@@KnaufLn this case, the (marginal) directionality of the clip on mic is vastly outweighed by the inverse square law and acoustic shadowing from his face. Given this, he actually wants to move the mic /away/ from the neck, towards the middle of his chest. Either that, or opt for a forehead, over-ear, or headset mounting (not really possible with the clip on type he has) As for omni mic directionality, it entirely depends on the size of the mic and the frequency of the sound.
Actually, the sign does say 'restrooms', is pointing at the hatch, and that hatch opening is about the right height? Probably just give a courtesy knock to make sure no one is standing on the other side and you're good to go. 😛
Battleship New Jersey is a heavy armor chip though right? I do definitely think all of the lightly armored the ships should have doggie doors like that
I'm surprised such hard earned information isn't put to use on modern warships. Warping due to damage is still a threat and failing to have a fail-safe like this for crew just sounds negligent.
"Dogs notorious have a hard time operating... these are also called dogs..." I knew that was coming, and it still caught me by surprise. Well done! :)
This is one more example of this channel giving me information that I didn't even realize I wanted to know, but did. And also, as soon as that doggie door was opened, I knew Ryan had to crawl through it. It just had to happen.
That door is one curator wide ☺️
It may have been one of those things, okay we will try filming it bit edit it out if it looks silly or awkward.
"Oh bugger, the Victory ship is on fire."
Every merchant ship I worked on (20yrs ago now) had some interior doors that had a section that was lightly held in place so it could be kicked/bashed/removed in a pinch. It was usually spaces that only had one way in/out like staterooms. Had to use it once to get into a stateroom when a crew member suffered a medical emergency in their room and the door was locked!
Came down here to say this. Still true today, and like you, the only time I've ever seen it used was to break into a stateroom for a medical situation.
Question for both you guys: During the medical situation, was it pretty instinctual to bash through?
Or were there a few seconds trying the door and thinking how to get through?
Probably a pretty dumb question. I just have no idea if you’d go through some sort of practice/training exercise per new ship, similar to life raft exercises.
The "doggie doors" and "kick out" panels were located low because smoke rises and sailors would be crawling anyway.
Also, it's easier to crawl through something low rather than try to jump through something located at chest height and fall onto the ground on the other side.
their position has nothing to do with smoke. that might be a coincidental benefit but how on earth would you kick out a "kick-out" panel much less climb through it unless it was located low? its not called a "headbutt-out panel"
The bigger question would be why make them so small, but the answer to that much the same, it keeps sailors from needing to stand up into the smoke to unfasten dogs on the top of the door, and minimizes how much smoke would follow the sailers through.
@@GremlinSciences if they were larger the door would lose rigidity and could warp along with the doorframe and jam the doggie door. which is the entire problem the doggie door is there to solve. and the larger the doggie door is the further it has to swing in order to open, making it more likely to be blocked by something in the way. they dont need to be any bigger than they are because theyre already large enough for a person to fit through easily.
@@Hephera It's not actually an issue of bulkhead integrity. There's plenty of space available for them to thicken and reinforce the door panels before they start hitting the flange during operation, so they could easily reinforce the doors to make the emergency hatch wider, and making the hatch taller wouldn't need much of any reinforcement until they almost double its height.
No, the bigger issues are with safety and survivability. Making the hatch larger means more airflow while hatch is open, not only feeding the flames more but also letting more smoke through into the rest of the ship and increasing the chance that embers make it through to spread the fire into other compartments. In the event of flooding the issue is even worse, the larger hatch means more weight that needs to be lifted to reseal the bulkhead and the larger the volume of water that can pass through if the hatch remains open.
I heard about the torpedo thing. British merchant seamen would go to sea with coconut fiber mats which they would drape over the cabin doorstep before going to bed so they wouldn't be trapped if the ship was hit. The strange thing is, many of them continued to do this long after the war was over. I spoke to a guy who was a kid on board a ship in the 1950s. He couldn't understand what was going on with the old guys and their coconut mats. (They only talked about it when they got drunk, and he found out later when he was old enough to drink with them.)
Interesting. I honestly didn't expect that to be reason, but it makes perfect sense. The door frame can bend, and lock the door shut, but that wouldn't happen to the smaller hatch, which is not part of the structure. In architecture there's similar things like that where you isolate certain features for similar reasons, but for earthquakes. Neat stuff.
This triggered a memory... from the WW 2 movie Mr Roberts. Officers stateroom doors had "kick out panel" stencilled on them.
If you get a chance to watch "Mister Roberts"' the non-watertight doors in the officers staterooms have these kick-out panels on the bottom.
And is also a fantastic movie 😊
"These are also called..." Is Ryan going to say
"dogs?"
YES!
steve
My favorite moment as well.
I saw it coming and actually started laughing when he realized how he had trapped himself in that sentence.
That was such an easy layup for an actual joke that I'm a little worried. Ryan, you okay buddy?
Why do people write their name at the bottom of a comment? Its isn't a letter, it's strange. First, I don't know why anyone is using their real name unless they are a public figure or aspiring to be or want every stranger in the world to know who they are and be able to find out everything about them. Second, Why is a comment being signed like a formal email or letter?
@@dickJohnsonpeterno clue.
Rusty
Now I understand the labels stenciled on the officers’ stateroom door in the move “Mr. Roberts”! Thank you!
Snafu is a fantastic name for a dog. I'm actually looking for a new dog, I may need to keep that in mind
I wonder how many dogs in the armed services were named Snafu or Fubar. I'll bet it's quite high, lol...
Situation Normal, All Fetched Up
Merchant ship: Survivability < Cargo capacity _(less WT bulkheads)_
Naval ship: Survivability > Cargo capacity _(more WT bulkheads)_
Gave me a smile to see the restroom sign at the same level as the “doggy” door in door
Someone might need to use the restroom in an emergency!
Good for you, Ryan, for never fearing to demonstrate what you are talking about. 😉
on modern merchant ships, we don't have those on the exteriour doors anymore, but we do have them on the interiour doors. usually disguised as ventilation grills for the circulation of the AC air. but they can be popped out to be used as emergency escape hatch to get out of your cabin incase the door is jammed or blocked or what ever.
I like how the restroom sign's pointing right at the doggie door. Just pop it open and deliver your business!
🤣👍
The moment I saw that door open, I knew Ryan had to crawl through it. Curator habits?!
funny i just watched Mr. Roberts, and his door had a kick panel labeled.
Ryan painting himself into a corner of seriousness but making a joke will never get old ‘’… these are called dogs too"
I'd donate a dollar if Ryan would slightly open a doggy door, press his face up to the opening and say, with an insane look, "Heeeeeere's _Ryan_ !"
Interesting! I will be visiting the New Jersey soon and will definitely be making a donation.
I miss the Dutch doors (two part) we had them on the old tug that got taken out of service a few years ago sadly. Those things were great you could get some ventilation and still keep out most of the water. Seriously let’s bring those Dutch doors back they were great!
Mann !!!
Its just hard to fathom, the hard times in the past !
God bless you
More than one sailor has died, though, because he had to be locked into a quickly flooding compartment on a warship in extremis. Escape, though obviously desirable, can be rendered impossible if it jeopardizes ship watertight integrity. Then it becomes a matter of saving the many at the cost of the few.
and that's why those dogs are on the *outside* side of the door only, with no matching dog handles on the inside.
@@nathanfisher6925 On the door shown here, there were normal dogs, with handles on both sides, as you want the doors to open outwards, otherwise, you may have a death trap, where everyone is struggling to get to the door, and it prevent the door from being pulled inward.
Also, in water tight areas, they may build up enough air pressure, that would hold an emergency door closed, so the door is located on the low pressure side, which would require the dogs to work from both sides of the door, in an emergency.
I also think it has something to do with fire safety as well. Smoke Rises and being able to get under it as much as you can to a safety area would or a safe exit I should say. Probably not such a bad idea.
I think escape trunks/doggy doors are necessary because in a combat zone, and sometimes even in training, the most unexpected things can happen. Especially considering the basic goal of modern militaries is to “kill people and break stuff” as one of my mentors used to phrase it.
Spruance Class Destroyers like mine had small doors in large hatches below water level. They would allow you to maintain high levels of water tightness and still allow you to get to lower levels. The large hatches would closed when all the time in unfriendly waters. The small door would be a scuttle hatch. Again all over modern ships.
So the doggy doors are 1 curator wide
I square curator of area
I really appreciate all you and everyone else do on this channel. While I'm too far away from Battleship New Jersey to stop by at the moment, some of your videos were interesting enough to my wife that we both went up to Battleship Cove to see the ships there.
its exceptionally good design to have a way to make an opening u can open by pushing in the lower part of a door. Not just for evacuation, it also makes fire fighting much easier and inhibits the spreading of smoke. Modern ships might not have them because other firefighting measures than firefighters in a ship have come into fashion (for good reason). So while i can see getting trapped sailors out as the main reason, in a modern ship with automatic fire suppression a trapped sailor is in a lot less danger than in times past. Im also pretty sure than most areas that are crewed at all times in modern ships have some sort of fire hatch as well.
If I’m not mistaken, in the movie Mister Roberts, in the stateroom scenes, the door has a “emergency escape - kick panel” sign on the stateroom door.
This is something I’ve always noticed when I watch the movie Mr Roberts. The door to Henry Fonda’s and Jack Lemon’s quarters has a doggy door
On. Lightly built ships for sure need ex doors on them . They need them more than a battle ship like new jersey
So Wise , Thank You . Having an Emergency Exit is Always a good idea
I appreciate the solution!
Reminds me of 9/11 where the same problem was encountered in both the towers where doors either couldn't be opened or wouldn't properly close. Warping also caused problems for the elevators and the hvac systems as well.
Learned something new. Thanks. (fyi- in case u were unaware, as your head turns side to side the volume is low/loud/low/loud…. Rinse and repeat……
Makes sense for the battleship not to have them. If it got hit with something powerful enough to both penetrate the armor and warp the bulkheads, the sailors are probably dead already.
Doggy door appears to double as a urinal.
I would have never know that. Very interesting. Awsome channel.
On the first door. Shouldn't the dogs be on the inside?
They're double-sided.
I imagine some retired sailor watching this video, one eye twitching slightly every time Ryan refers to one of the ship's _hatches_ as 'doors'. I'm a filthy civvie though, if I saw Red Oak Victory or New Jersey in the flesh I'd likely exclaim something to the effect of "That's a big-ass boat!". Especially New Jersey, what a monster!
My dogs are pleased that they could escape a sinking ship, They vote 4 paws up,
Thanks for the video.
I served on a Knox class frigate and we had metal doors that had kick panels in them, the doors into the crews lounge was one example.
As a Navy Retiree, I have too many Sea Stories... but one, getting woken up by people franticly trying to escape the space and finding the main hatch and emergency scuttle both locked with padlocks on the outside and the OOD ordering ALL hatches to below the waterline being closed, dogged and locked .... because some idiot shot off a War Shot Torpedo and the only ship it had to lock onto was ours... I got one damn rule, if I'm asleep and we're all about to die? Let me sleep thru that experience .... so far, I have given that rule numerous times, no one honors it. So I got woke up by a bunch of jibbering idiots "WE'RE ALL GONNA DIEEEEeee! They shot off a War Shot and its locked onto the ship!" and all you could hear was the torpedo seeker head locked on and then.... ZZZZZTTTTTT *THUNK* ZZZzzzzzzz *CLICK*. It wasn't a War Shot, it was a RexTorp Runner, an exercise torpedo with a seeker head and an operating engine. I am still P***ED about that. They had screwed up the paperwork on the torpedos and had loaded my RexTorp in their tubes and given me a 'RexTorp LOG' (no seeker, no motor, just a sea dye marker and enough buoyancy for it to bob) and the scored Trop Drop for my Det's Torp Drop was scored a ZERO.... so, a ZERO score after working nonstop for nearly 20 hours to get the helo up to drop it, finally get some sleep only to be woken up by stupid..... OHP Class Frigate escape trunk from the lower berthing is actually nicer than the berthing.
Frames on watertight doors in warships are very strong and made of steel as is the rest of the ship which has many compartments adding to the total robustness of the ship. Warships also have very strong round escape hatches in the deck head just big enough for normal weight crew to go through, or at least they did during my time at sea. In the 70s and 80s a lot of warships were built with aluminium superstructure to reduce top weight but sanity has since prevailed and they reverted to steel which is much harder to bend. Though bending was not the reason they reverted to steel. It was because during the Falkland war the RN had a lot of problems extinguishing fires on ships with aluminium superstructure.
Very interesting and cool!
Another great one Rtan, I learn so much from your videos.
I don't know why, but that bathroom sign pointing to the doggy door cracked me up.
Should emergency escape doors be included in ships today? I think the answer must necessarily be "that depends on the ship type." Ships that might sustain or experience deformation of bulkheads that could jam doors closed YES. LCS types come to mind as well as naval auxiliaries built to commercial vessel standards.
I do think there should be a backup escape system when possible.
Fast sinking ships go vertical and the main hatches can be hundreds of pounds, escape scuttles are lighter and easier to open if the ship is vertical. Most modern ships have a main hatch and an escape hatch somewhere in the space.
They stored reefer man! Cool! LOL Great video!
My brother helped with some restoration work on the Red Oak before taking a job in Kings Bay. He use to have some radios from Liberty Ships... Not sure if he took them, they were pretty huge.
You can get hose through them too for de flooding or fire too
My thought had been it would be because of the potential of water pressure pinning the large door closed versus the smaller one in the case of a flooded section, rather than frame warping.
At Pearl Harbor, hundreds of men died when the ships capsized
As long as the doors are watertight when they need to be, they should have them
The problem is there are just so many compartments on most modern warships, period, let alone a mammoth like the NJ, as vs seven on the ROV. Building an emergency hatch into hundreds of doors would add a huge amount of weight, add a point of failure that could compromise the watertight integrity of that door and be a PITA to inspect since it's so low down on the door.
I'd argue the risk of a hatch failing and possibly dooming a ship with thousands of crew far outweighs its utility.
@@alphax4785 This is true
But the prospect of condemning hundreds of men and women to die is just as bad
I understand the necessity of sacrificing some crew to save the rest but shouldn't some of them be given a fighting chance to survive if possible?
@@dragonweyr44 Again though, the considerations for a merchant marine ship with splinter and small arms protection around the important spaces for armor at most, a crew of around 99 men and massive cargo holds where a torpedo hit is probably a death sentence for the ship at least is utterly different from an Iowa class BB with a crew compliment of over 2000 men in WW2 in a ship that is a beehive of compartments. I've visited the NJ and trying to count the number of doors would be a several day job... now add a hundred pounds or more for a warship grade (the doors on the NJ are far more solid than the ones on the ROV since ROV is not supposed to be in combat while combat is what the NJ's made for) 'escape hatch' for each one... you'd probably have to sacrifice an inch of armor off the main belt to compensate for the weight gain... not a good trade off.
They are useful , especially if you end up locked into a compartment . Major bulkheads don't have them of course . New Jersey is pretty robust and probably built before the idea took hold .
Later ships don't have them either. More likely that Liberty/Victory ships are disposable, whereas combat vessels are not.
Definitely! Put doggy doors back on Navy ships. I think damage control details would like the idea.
I think compromises are in order here. All watertight doors on lightly-built ships (supply ships, corvettes, destroyers, light cruisers) should have an escape trunk or doggy door while on heavier ships (heavy cruisers, battlecruisers, battleships, aircraft carriers) they're unnecessary.
Once again BNJ teaching about some little tiny fact we never knew we wanted to know. Never change, y'all :)
Older cruise ships that I've been on such as premier Cruise lines oceanic (sadly both the cruise line and the ship are both no more)
Had the kickout panels in many of the doors
In the WWII movie Action in the North Atlantic there is a scene early movie where one of the crew tells another of the crew to not close the door to the berthing room for the reason that they could be trapped. Later when the ship is torpedoed one of the crew is trapped.
I think most people would assume it's for airing out or passing toilet paper to the bathroom with that sign placed there lol!
I would say the Iowa class ships have something similiar. In some watertight hatches there is a round scuttle that you can open and pass through without opening the entire hatch.
"We heard you like watertight doors dawg, so we dogged your doors with dogs, dawg"
Interesting, nice!
Those are handles. The dogs are on the other side holding the hatch closed ;)
not all watertight doors need an escape hatch, but it's just another facet of naval engineering that seems to have been forgotten.
with the sign for restrooms right next to the doggie door, I was initially a bit worried ...
Very informative video. One suggestion: don't turn your head from side to side so much while you speak, it makes the volume go up and down as you face towards and then away from your microphone
HI RYAN,, VERY INTERESTING ,,!!!! THIS ISNT THE FIRST TIME I SAW THESE DOORS.. ON THE MOVIE ,,, POSIDON ADVENTURE THEY SHOWED THESE DOORS ... TRYING TO GET TO ONE COMPARMENT FLOOR TO ANOTHER ,, GOING TO SHAFT ALLEY.. BUT WITH THE SHIP UPSIDE DOWN ,, BEATING THE SHIP BEFORE IT SANK GETTING TO THE ENGINE ROOM TO THE 1 INCH STEEL DRIVE SHAFT ROOM PEPPLER ROOM TO GET OUT,,, ,, CHECK IT OUT!!! YOUR NEVER TO OLD TO GET THREW THEM RYAN.. THANK YOU RYAN!!!! LET ME KNOW ,, WHAT YOU THINK,, VERY COOL....
Within the limits of needing to contain flood / fire damage, yes, secondary means of egress should be part of any design, be it a warship, submarine, aircraft, or one's own home.
1:10 dogs have notoriously hard time operating. Well these are also called dogs had me dying.
Yes I think they still should have the doggie doors it's a way for people to get out all right this is Bob from Vero Beach Florida God bless and stay safe and have a great week
These videos are so informative.
This is an issue on airplanes as well, a hard landing could distort the frame, jamming doors. There's a similar escape opening on the cockpit door. Otherwise they take measures like using curtains, requiring doors be open or compartments be vacant during landing, and leaving a gap between the door and ceiling so they can displace upwards.
Hey Ryan, your videos are great, but I see you're not using the mic correctly, you can hear at the end of the video when you turn your head towards the microphone how the sound gets better. You need to point the microphone towards your mouth, bot away from it. If it has a wire, that will usually mean that the wire is hanging downwards. Also try to move the microphone closer to the neck V-line.
Not sure the exact model mic that Ryan is using (looks like the DJI wireless)...but many of those type mics are omni-directional (does not matter where you aim it).
I think the issue we are hearing is just that the mic is way off center line--this can make head turning change the sound dramatically.
@@kevinhoober1863 yes but omni mic does not really catch stuff behind it, only about 120° to each side
@@KnaufLn this case, the (marginal) directionality of the clip on mic is vastly outweighed by the inverse square law and acoustic shadowing from his face. Given this, he actually wants to move the mic /away/ from the neck, towards the middle of his chest. Either that, or opt for a forehead, over-ear, or headset mounting (not really possible with the clip on type he has)
As for omni mic directionality, it entirely depends on the size of the mic and the frequency of the sound.
@@KnaufL Leon, looks like you are confused on your mic patterns, you seem to be describing a cardioid pattern
You gotta do something with that belt.
kick out panels are common on interior doors on most commercial ships today.
I read "dodgy door." Thinking why are the British so worried about the Battleship doors.
Actually, the sign does say 'restrooms', is pointing at the hatch, and that hatch opening is about the right height? Probably just give a courtesy knock to make sure no one is standing on the other side and you're good to go. 😛
Honestly i think the doggy doors is a good idea, wich can be even better with other safety tricks
Always knew about kick out panels but I never heard the term doggie door. . . .
I hate to be blunt, but the sign pointing to the hatch clearly tells you what to use it for.
Even a heavier ship could be warped by torpedo hits. Hence the desire to entirely eliminate doors through bulkheads on lower levels.
Dogs have a hard time operating [points to dog, realizes what he is about to say].
I think it makes sense though it is not a door that could cause leaks harder to do condition zebra
Battleship New Jersey is a heavy armor chip though right? I do definitely think all of the lightly armored the ships should have doggie doors like that
When I was in the Navy. We would do blindfold egress from our berthing and work spaces.
SNAFU would have been a such fitting name for my sister's dog
I misread it as "dodgy door", and concluded it must've been due to a dodgy builder.
3:52 "Reefer stores"
>_>
Yes, I know reefer refers to refrigeration, but still..
"Gift Shop Museum" sign. Is this a museum on the history of gift shops, or is the gift shop of the museum?
I need those on my office door. I locked my keys in the other day. It took a while to figure out how to get in to get them.
I'm surprised such hard earned information isn't put to use on modern warships. Warping due to damage is still a threat and failing to have a fail-safe like this for crew just sounds negligent.
Dogs have a hard time operating uh....dogs 😂
seems inexpensive enough to put in kick out plates and "doggy" doors. Old school is sometimes good schooling!
Reefer Stores? They’ll fund the restoration in no time!