Diamond Hull Patent: Dolphin 3 & 212CD Submerged Tonnages?

Following the February 2, 2022 article Oleg7700, from Israel, provided very interesting information, dated February 3, 2022 on Dakar-class/Dolphin 3s, Type 212CDs and other large TKMS future design displacements.

Oleg has used German language websites [1] and [2]. 

Dutch [3] and English [4] (the last on TKMS’ US Patent for the "Diamond hull".)

[1] Oleg pointed to Germany’s https://www.ndr.de/nachrichten/schleswig-holstein/Drei-U-Boote-fuer-drei-Milliarden-Euro-TKMS-in-Kiel-baut-fuer-Israel,uboot838.html  . When translated to English, here is part of it “With a length of more than 80 meters, the new boats of the so-called Dakar class will be the largest submarines ever built in Germany.”

[2] If everything goes according to plan, the first submarine should be handed over to the Israeli Navy as early as 2029.” https://www.militaeraktuell.at/drei-neue-deutsche-u-boote-fuer-israel/  [ “.at” means an Austrian website]. 

“With a length of more than 80 meters, the new [Dakar/Dolphin 3s] will be the largest submarines ever built in Germany. Although also equipped with air-independent fuel cell propulsion, they will differ significantly from the boats of the Dolphin II class previously delivered to Israel by TKMS and will be specially tailored to the requirements of the Israeli Navy. Based on a computer graphic published by the manufacturer, the boats appear to have a greatly extended tower [aka fin or sail], which may indicate a vertical missile launch system (VLS) up to and including ballistic missiles. This feature is still extremely rare in conventionally powered submarines - even in the [fin/sail] - and would be a new capability for the Israeli Navy, which would thereby receive a considerable additional attack capacity.”

“...Possibly, the larger space inside the tower (English "Sail") could also offer the Israeli Navy more capacity with a view to special operations. This could, for example, enlarge the mission room for special operations teams and their equipment. The integration of a wet and dry room for the deployment of the teams and their equipment is conceivable. Alternatively, the additional space could also be used for deploying unmanned underwater vehicles (UUVs) or launching unmanned aerial vehicles, which are becoming standard in submarine operations. The purpose of submarines has long since gone far beyond sinking enemy ships.

“...In any case, the trend is towards larger submarines like these,” explained Rolf Wirtz as shipyard director to THB [ http://www.thb.at/ ] (Daily Port Report). In the meantime, subs with a displacement of 2,800 tonnes and more than 3,000 tonnes are being planned in the [TKMS] project department.”

[3]  https://marineschepen.nl/  "Type 212CD displacement is 2,500 tonnes (surfaced), and 2,800 tonnes (submerged). The submerged displacement of the Type 212CD E [enlarged or extended range?] (оffer for the Netherlands) is 3,200 tonnes.

Displacement of the 'Dolphin 3' / Dakar may be “3,400 tonnes. (minimum)." Rendering simplified, but - "Common Design" TKMS! Including sail/fin size...

[4]  TKMS’ 7 page Diamond shaped hull Patent to be used for the Type 212CD and other future TKMS designs see https://www.freepatentsonline.com/20190315445.pdf  

Shalom from Israel!”