Pumpjet on 688(I)?

[Avatar]

Hello, this may be classified, inwhich case, don't reply to this.
Do the later subs in the 688(I) have the pumpjet propulsion gear? I saw a picture of the USS Columbia SSN-771 while she was being commissioned, and it looked as though she had the shroud.
thanks

[sonar732]

Hello, this may be classified, inwhich case, don't reply to this.
Do the later subs in the 688(I) have the pumpjet propulsion gear? I saw a picture of the USS Columbia SSN-771 while she was being commissioned, and it looked as though she had the shroud.
thanks

It is common knowledge that the newer 688's were used as test beds for systems to be utilized on future submarines.

[Oberon]

I'm pretty sure that the Cheyenne has a propulsor, she was the testbed for a lot of the system upgrades for the Third stage 688s and for the Seawolf.

[Linton]

The first submarine pumpjet that I am aware of was on a Valiant class SSN.