NOTTODAY

@SSN_685 It’s wild to me that the MM was bigger than a reduction gear.

I saw a discussion on turbo-electric drive on submarines today and I thought I’d address that. There were only two nuclear powered turbo-electric drive submarines in the Navy, Tullibee and Lipscomb. Tullibee was an early 60s boat and Lipscomb was commissioned in 1974, so we are talking a long time ago. I went to S1C prototype, which was the Tullibee reactor and steam plant (with some exceptions due to being land based), and my first boat was interestingly enough, Lipscomb. So my first exposure was all turbo-electric submarine propulsion plants. I didn’t even see a reduction gear in operation until I’d been in six years and was an MM1 🤣 anyway, the idea of electric drive was a measure to quiet the submarine, and believe me, we were quiet. We had two SSTGs (ships service turbine generators) like everyone else, and we had two Propulsion Turbine Generators. Difference was, the PTGs were much bigger and were connected to DC generators. These powered the Main Motor, which was huge. Much bigger than a reduction gear on a 726 class boat. The advantage was that the MM could be stopped immediately. No shaft coast down. And reversed just as fast. Here’s the kicker though. We could shutdown both PTGs, one SSTG and put the electric plant in a crazy battery charging lineup and drive the MM off the battery. One turbine operating at 1200 RPM. We also didn’t use air ejectors. They were a backup. Steam noises were minimal. We were the first boat to have reduced frequency MCPs. With all this, we could be quiet as a mouse. The rig for ultra quiet was amazing. Of course, we were limited in speed to about 12-18 knots like this. Because we were so heavy, our top speed using normal PTG propulsion was 23-24 knots tops. Because of this, we were involved in most fleet exercises as an aggressor boat. We would hang periscope shots of our “kills” in the Ops passageway. Knox class frigates, Spruance and CF Adam’s DD and DDGs, and even the Eisenhower. The stories of launching flares over the flight deck? Well, not that close but we were close 🤣 the idea of electric drive was great. The problem with both boats was the technology wasn’t where it needed to be to make them effective. We had carbon dust problems from the PTG brushes. The Navy spent millions in 87-88 installing a carbon removal system for both PTGs and the MM. It was basically a big separate ventilation system for the generators and motor to reduce dust. It actually worked too. But when they looked at the cost of putting a permanent system in, coupled with the refueling, the Navy decided to decommission Lipscomb in 1990. I had transferred in late 88. During my time, we deployed twice and I got two sea service ribbons, we were most definitely not tied to the pier as a lot of doomsayers state. So I’m very happy that they’ve decided to revisit turbo-electric drive with the technology we have now. The 826 class should be some of the quietest boats ever, if they resemble the propulsion systems of Tullibee and Lipscomb. The pictures are all of Lipscomb, taken by me. She was a good boat and was simply limited by the time she was designed.

@cansl3r @fasc1nate Have you been in his moonshine?

@fasc1nate He was from California not North Carolina!!!

Marvin “Popcorn” Sutton was a legendary Appalachian moonshiner from Maggie Valley, North Carolina, known for producing what many considered exceptional moonshine. His trademark overalls, fedora, and long beard made him a recognizable folk figure. Sutton openly shared his methods in books and videos, even as his work remained illegal. In 2008, authorities arrested him and seized more than 1,700 gallons of moonshine. The following year, he was sentenced to 18 months in prison. Rather than serve the sentence, Sutton ended his life, a choice many viewed as a final assertion of independence. His death only deepened his legend, inspiring documentaries, books, and a whiskey brand bearing his name. More iconic historical photos: bit.ly/44OpIzi

@SpaceNavyFan @USN_Submariner Dangit! Came here to do just this.

@USN_Submariner Someone is going to do it...might as well be me! 😁

OTD in 1979: USS Dallas (SSN 700) was launched at EB ˜”*BIG D ★ 𝘍𝘪𝘳𝘴𝘵 𝘪𝘯 𝘏𝘢𝘳𝘮'𝘴 𝘞𝘢𝘺*”˜

@SGTWipper1Each When I got out my job was mostly 6-10’s and 7-12’s and by the time it let up it had expired. Kick myself all the time for that.

As a Veteran, have you used your GI Bill? If not, what's stopping you?

@kaizen000000000 Alex is far too kind.

Is she schizophrenic?😅😅 Or she just don’t know the meaning of “evidence”

Using a photo or GIF, what’s your favorite Military weapon of all time? No matter the size or time period.

@oldGabePowers @goodbreffis I prefer my hotdogs and hamburgers on white bread.

@goodbreffis Can't people run to the dollar store for a pack of buns? People act like they are proud to be so poor or lazy that they use white bread slices for a hotdog bun.

Chili dawgz with Billy

@MbarkCherguia Heat via a pan and spices.

What are you adding to this?

I want to be an HOA president now 😂

@pureMetatron Lovell City. Iykyk

So what's gonna be the name of the first Lunar colony?

@3YearLetterman @greg16676935420 I think we should take these and fill them with oil and just transit submerged.

@greg16676935420 This kind of common sense thinking is why we need you in Washington, Greg

This might be a stupid question but why don’t they just dig a new route?

@ManifestHistory Start with reading Genesis 1 and 2 and contemplating them.

I’ve finally decided to read the entire bible. So far, I’ve read Genesis and Exodus. I’m obviously really interested in reading the Gospels and New Testament. I’m debating skipping ahead to the Gospels. What do you recommend I do: Read the bible from front to back or skip ahead and read the Gospels (or entire New Testament) and then go back to the Old Testament.

@ImKingGinger No we don’t.

Atheists really hate how distinctly Christian space travel is. Astronauts read Genesis orbiting the moon (Apollo 8) Took communion on the lunar surface (Aldrin) Psalms from the moon (Irwin) Bibles to the ISS (Glover) Now Artemis II We are so back

@KnappJW @SGTWipper1Each It ended on tube day 1.

@SGTWipper1Each BOCOD. Figure that one out

Do you still use any of these on a daily basis? FUBAR SNAFU BOHICA WILCO Ate Up Good To Go High Speed Pop Smoke Squared Away Voluntold

@Templarpilled @MikeyDiMercurio Is the moon newly discovered?

Furthermore, the Moon is Catholic

@Aspirant_Riker @theoldworldshow @Will_Tanner_1 Correct.

John Brown was a murderous terrorist who tried to inflict the white genocide in Haiti upon Virginians, who had the mildest form of slavery in the United States The only thing to learn from John Brown is that these people can’t be reasoned with. They must be crushed, or they will do to us what they did to Haiti and what John Brown tried to do to Virginia

@mwickstrom40 @wil_da_beast630 And also had agendas.

@wil_da_beast630 The primary sources would be battlefield reports, which were usually a compilation of report summaries from many different commanders, and which were summarized by secretaries, who also weren't there lol

I like Matt, but "Most of what you know about the Civil War came from people who weren't there is an all-time line. Take THAT, KSU History Department! Not ONE of you mfs is a vampire!

@williewired * Morse

Note the exhaust from the diesel emergency generator. You do not enter a drydock running the reactor critical. Oh, no, sir, you do not. And all that exhaust makes for such a fine day of conning the boat, lemme tellya. (cough cough)