Great channel. Subscribed. Could you make a video about the history of the German WWII torpedos, including the acoustic torps?

14:00 Interesting that there are more than twice as many "ober-" machinengefreiter as ordinary ranks. Why the doubling of the higher ranks?

7:05 So this is the minimum number of crew to operate the boat? Anyone else onboard was in a sense optional?

Where was depth measured? If at the center of the boat parts of the bow or stern could be considerably deeper if diving or ascending and thus experiencing different depths. How was this factored in?

"Diving depth would be verified at the dock." How would it be verified? It obviously couldn't be tested to this depth at the dock. Would the captain sign off on this number before departing? What exactly is meant by this?

Whats with the edelweiss logo no time 4 U

Apparently the workers welding the hull sections together had to keep working even during air raids.

I love that you post your references! Makes reading to understand your perspective so much easier.

I would love to know how the aip with system worked on those boats even if it was never produced

I think you will find that the end of the 2nd "Happy Time" corresponds with the introduction of 3 cm wavelength "H2S " radar on allied aircraft searching the mid-Atlantic gap. The Type XXI U-boat never got used in any quantity, because British Bomber Command made sure that the Mitteland and Dortmund-Ems canals were bombed whenever they contained enough water for the pre-fabricated components of the U-boats to be shipped to the coast for assembly; also the Baltic Sea was so thoroughly mined that it could not be used to train U-boat crews.

Raeder needed radar on his raiders😊

I’m convinced mis-management of the BF-109 fleet led to this and lost the war.

The only real outcome from the Fairlie ASW trials of Sept 1944 was the recomendation by the RN for the Allies to immediately bomb the type XXI assembly yards as at that stage there was no other effective means to counter the threat. The type XXI was the first modern attack submarine and Cold War SSK combining sophisticated sensors, weapons and an enhanced underwater performance. HMS Seraph was the very same submarine as per Operation Mincemeat and portrayed in the movie "The Man That Never Was."

Is it Electro-boot month already? I've watched an Electro-baby-boot (type xxiii) video barely a few days ago, and while I was watching this video a notification of a Drachinifel video about Walter- and Electro-boots popped up. Why the sudden Electro-boot-tsunami? (Not that I mind)

You can only use the Type XXI class sub in Silent Hunter II & III afaik.

Why dont we see "Walter Drives" get prevalent development post-war by the allies? Is it due to the volatile nature of the fuel, akin to Me163 Komets? Ive only done bare surface research, but they just feel like October caterpillar-drive levels of quandary. Where/how does the turbine exhaust exit if its a sub-surface drive..

I approve of this. 😁

This sounds like a great idea. I’m on board with this. Also, I am gay

Us submarines could dive just as deep as any German U-boat. Germans just had a higher risk tolerance as compared to safety policy with us submarines. The USS Tang proved this by diving so deep it went over the 600 ft depth gauge.

A note. The surviving crew of U 64 formed the core crew of the later (in)famous U-505.

Apparently bigger boats had actual physicians assigned as crew. I found this out in reading the book on U-505 (A type IX) written by one of the crew. This is the sub that ended up captured and is now at the Chicago Museum of Science.

I only want to know one thing. Type 9 Uboat, what is inside the conning tower or sail. I have watched May videos and not one shows what is inside the conning tower.

Hello! I'm wondering if you know about the land-based DF's used in China during WWII. My grandpa was an operator at Yunnanyi, and I'm trying to get a sense for what exactly he did when planes were lost. I.e., did planes call in when they were in trouble? Or would he have just been monitoring airwaves? Is the oscilloscope where you actually see the bearing? Apologies if these are stupid questions! The War Department book / manual I have about it is for Radio Set SCR-291-A if that helps.

I was an item manager for communication systems for several years. As someone pointed out “AN/XX” the AN is for ArmyNavy. During the R&D for the new survival radio, the Navy kept hammering that the radios must be waterproofed to 2Atm, 66ft. I was tired of this as it was YEARS to the procurement. One “all users” conference at the Boeing HQ in Anaheim. I was really frustrated and did some math, I came up with the figure of 550,250,333. My higher HQ Rep asked what that was, I told him that was how many heavy duty ziplock bags we could buy each year to put the SEALs radios in to waterproof them to 66 ft. I asked “are they going to try to use their radios under water?” If not, they didn’t need to be $8,000-22,000 MORE PER RADIO to meet that 2atmosphere “requirement”. I was reassigned from that program soon after. AN/PRC112’s.

Communication plans are tough, I will give away my job with the following two RULES. 2 is 1 1 is none. Why? Shit happens. All good common sense plans follow this acronym. PACE. Primary Alternate Contingency Emergency It is CRITICAL to always rehearse “Actions at the Objective.” Writ Loud Market Garden.

Thanks!

My deepest respect to and for the Navajo Code Talkers. One of my father’s brothers serviced with the Army in the South Pacific. So many times he would tell us kids about the code talkers and the lives that were saved because of them.

It really shows the challenges of requirements development and acquisition, especially when operating jointly. I had forgotten that the “AN/…” stood for Army/Navy, which is still applied to equipment today.

Very interesting aspect of the "difficult" operation at Betio. Well done.

@11:30 on the LEFT you see the original walky-talky. You could walk around and talk on the two-way radio with the SCR-300. The SCR-536 radio set on the right was called the HANDY-TALKY, a phrase that never really caught on. It is however the prototype of what would in popular parlance become the "walky-talky."

Thank you for a most interesting video. I am a communications guy and I lived on Tarawa for three years 1992-1995. Unfortunately this lesson in pre-battle planning probably came at a high cost for the men who had to do the fighting. Even during my time on the island there was still a lot of military scrap metal littering the lagoon side beaches down at the Betio end of the island.

That firing the guns would knock out the vacuum tube radio equipment doesn't surprise me, it (I believe) happened on the Bismark too. The specialty tubes constructed for the proximity fuse (5 in) AA were not used on the general communication gear.

Excellent video. Can you recommend anyone from the list who is a skilled researcher in WW2 Navy/ Marine Corps record groups?

Thank you for this awesome video…what a great topic!...as a radio hobbyist, I have often wondered how the WW2 era radio technology fared in combat realizing that specifics on failures would likely be difficult or impossible to find…your video does a great job of pulling together scenarios which certainly could have occurred on other battlefronts!!...motivated me to search for other examples and did find interesting info on Battle of Arnhem!!!...BTW…love your submarine content too!!!!

well done Haiku...i was on a geekiness low. i sure needed this. Mahalo Braddah

Thanks for mentioning the notable submarine escapes. Looked them up and are extremely interesting cases.

Cool and informative video! I've collected a few WW2 relics over the years, and I've got a U boat emblem pin, of U201, the Snowman. Some of the paint has flaked off but I believe the pin dates back to WW2. Would you know the purpose of these pins? Souvenirs maybe? I've always been kinda curious. Thanks for any info. Ryan H.

As simulations become more ‘real’ our realizations become more false. We end up in fantasyland which we believe is reality.

موضوع جميل جدا كنت اتسأل دائما ماهي التقنية المتطورة في البطاريات المستعمله للوحوش الالمانيه التي ارعبت السفن في الاطلسي

Metros.. Biscayne cross..

wwII Bombers youtube channel , you will find there tons of statistics

Very relevant to this issue was the mid-1943 withdrawal of U-boats from Atlantic patrols. Flak and other 'improvements' were precursors to the re-introduction; the narrative ignores this policy.

Please control your sniffing . . . . thanx

Two and a half minutes of wittering before it really begins.

here life ended so sad