Wanna drive a specific boat of a class?

[LTJGBeam]

Originally Posted by Carthaginian

From a 95B :P not exhaustive by any means.
688 - standard boat, 4 tubed amidships, fiberglass sail.
688 II - VLS tubes, otherwise similar
688 III/'688i' - VLS tubes, bowplains instead of fairwater planes, under-ice capable

Incremental quietening and fire control improvements made throughout the classes and flights.

Originally Posted by Zinmar

I was Army so what is the difference between the Flt's?

A little more detail added to Carthaginain's post:

688 - Original LA Class, standard boat, 4 tubes amidships, fiberglass sail, AN/BQQ-5 SONAR Suite and TB-16 Towed Array.

688 Flt II - adds VLS tubes, TB-23 Towed Array, Anechoic Tile, otherwise similar

688 Flt III/688(i) - VLS tubes, AN/BQQ-10 SONAR and TB-29 Towed Array, Anechoic Tile, External 6" Countermeasures pods in addition to the internal 3" countermeasures, bow planes instead of fairwater planes, under-ice capable.

Incremental quieting and fire control improvements made throughout the classes and flights. Biggest improvement in the Flt III is the AN/BQQ-10 which is a significant improvement of the AN/BQQ-5. How much I can't say, as I signed an NDA when working at SUBSCHOL, New London. Don't want to pay the 2.5 Million Dollar fine and spend up to 25 years in prison.