Thread by @Saturnax1

#SubSunday #Submarines #Technology
1. Russian government considering several options how to lift the sunken Project 645/November-class SSN K-27, that was scuttled in 1982 in the Kara Sea off the northeast coast of the Novaya Zemlya archipelago at a depth of 30m.
Short🧵:

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews 2. Project 645/November-class SSN K-27 was the first Soviet submarine to use lead/bismuth liquid metal-cooled reactor (LMR). K-27 was written off in 1979 after suffering a major radiological accident in 1968, full story here:

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews 3. First plan to recover the K-27 resting at depth of approx. 30m utilizes foreign heavy-lift floating crane to recover the hull from the seafloor and then transport it using a semi-submersible vessel👇

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews 4. Second option uses lifting & transport vessel (TSPT) designed to lower a grappling device to grab & lift the wreck from the seafloor.
Project Azorian vibes are strong with this one.

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews 5. Third option is to use a catamaran lift/transport vessel equipped with a series of mechanical claws that grip & lift the hull to transport it away👇

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews 6. Fourth option is to weld several pontoons on the hull of K-27, refloat the hull so that it can be loaded onto the semi-submersible vessel and transported away👇

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews 7. Worth noting is that the recovery operation of the K-27 hull is 10 behind the original schedule already & is questionable whether any of these plans will be eventually carried out.
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FYI @AlexLuck9 @MT_Anderson @ThingsNavy @FauteuilColbert @COUPSURE @BuchananLiz… twitter.com/i/web/status/1…

@CovertShores @Capt_Navy @The_Lookout_N @TayfunOzberk @FORONAVAL @IBallantyn @Aviation_Intel @USN_Submariner @R_P_one @BarentsNews @AlexLuck9 @MT_Anderson @ThingsNavy @FauteuilColbert @COUPSURE @BuchananLiz *10 years behind the schedule...