Why Is Iran Regretting Using The Metric System?

Because they've lost a Kilo. 

TWZ.Com: One Of Iran’s Most Advanced Wacky Catamaran Warships Sunk In Epic Fury 

The single Kilo class submarine, Iran’s most advanced, which was docked at the base, also appears to have been sunk, and a large scorch mark sits next to where it was tied-up pier-side. U.S. Central Command confirmed it had targeted the “most operational Iranian submarine” in ongoing strikes last night.

In addition to the sinking of the Kilo, the other historic news, also submarine related, is that we now have an active-in-service US Navy Warship, other than the USS Constitution, that has destroyed an enemy warship:

FoxNews: US submarine sinks Iranian warship by torpedo in a first since World War II.

In addition to that milestone, the submarine successfully sinking the Iranian frigate marks the first time since the Falklands War, when the HMS Conqueror sank the ARA General Belgrano, that a nuclear submarine has torpedoed and sank an enemy vessel. 

Patriot's Point - USS Clamagore

From the Flight deck of the USS Yorktown one could get some photos of the USS Clamagore, SS-343,  a Balao-class (and later GUPPY-class) submarine.  She served in the Navy from September 1945 until June 1975, a solid 30 years in service.

 Clamagore is the last surviving GUPPY class submarine. The sharkfins you can see on the bow were added for the GUPPY III sonar sensor upgrades.

Looking back from the sensors on the bow to the stern, she's certainly seen better days.

The USS Clamagore as you can see is looking pretty darn rough.

Due to Covid, the sub was sadly not open to visitors. 

I would have gladly signed a waiver to be able to get on board and see her, but that was not an option.

As a result, I will probably never have the opportunity to tour the inside of Clamagore.  

This will likely be the last year for anyone  to see the Clamagore above the waves, as she is now scheduled to be taken out and sunk as an artificial reef  sometime later this year.   

I'm not sure if this will be the first US designated National Historic Landmark to be deliberately sunk or not.  Once sunk, does that make it a National Historic Seamark? 

Once she is sunk, there will be no more surviving GUPPY class submarines left above the waves.

It Looks Like The P-8 Poseidons Are Going To Be Busy

The Detroit News: N. Korea appears to fire submarine-launched missile

Submarine ballistic missile launching capability in the hands of a nuclear-capable rogue state that has threatened to nuke the US and South Korea, what could possibly go wrong?

Assuming this isn't more communist make-believe theater, Noirth korea just got a whole lot more dangerous to areas outside its immediate neighborhood.

We're gonna need more P-8s.

SFO Day 2 Tour 1 - USS Pampanito SS-383

The USS Pampanito, SS-383, a Balao class World War 2 submarine is now moored as a museum and memorial submarine in San Francisco Harbor.

Built in 1943, she had 6 successful war patrols, including a patrol where she sank a Japanese prisoner of war ship and then subsequently rescued 73 British and Australian survivors.

Beside the USS Pampanito is a granite memorial to the 52 United States World War 2 submarines that are, even now, "still on patrol".

Here's a view of the front and rear of the conning tower. The 4-inch deck gun still has nice crisp rifling after all these years. Note the broom hanging from the conning tower indicating a clean sweep - a successful patrol.

The tour begins from the aft of the boat and makes its way forward. We begin in the aft torpedo room.

Torpedos still sleep in their racks in the room.

Note the bunks where crewmen slept above the sleeping fish, and right in front of the stern torpedo tubes.

Immediately past the aft torpedo room, in the maneuvering room is the crew toilet.

Note the valve above the door for air circulation:

The aft maneuvering room is pretty crowded

Each engine had its own control lever.

The washing machine and sink was a highlight for the kids to see.

The main crew bunkroom really gave them idea of how close the quarters were, and they were further impressed when told that each bunk was shared by the crew that slept in shifts, and aside from stuffing their uniforms in the mattresses, their entire storage area for personal items consisted of this locker.

The crew mess area included a table with a checker board.

The galley kitchen was also a tight space for prepping meals for feeding 83 crewmen.

Next was the Pompanito's radio room.

The typewriter you see center right isn't a typewriter. It's a code machine for encrypting and decrypting communications to and from the submarine.

Then on to the control room, where the Christmas-tree panel indicates the status of every opening in the ship's hull.

The lights were kept red in this room to preserve the deck crew's night vision. Interestingly enough, the current bulbs are red compact CFLs - yes, you're definitely in California.

Unfortunately, access to the conning tower is blocked off.

The tour continues through the submarine, letting you view the wardroom and officer's quarters and ending in the forward torpedo room, where you exit out the forward torpedo loading hatch.

The USS Pampanito is a well-preserved piece of American World War Two naval history and deserves a visit if you're ever in San Francisco.