Talk:AFOH/@comment-14850713-20140210122458

The Ardent guide in the BSC wiki is helpful, although I never used it since it was posted after I built my subs.

My old subs (since decommissioned) used props to submerge but they were very slow (one could go 40 knots in spurts). In my frustration to build subs that use pure hydrodynamics, I bought a Soryu (modified with top-mounted torpedoes and renamed Invincible). Then I modeled a bigger, faster and heavier sub after it (Triomphant, which has a speed of 80 knots). For the sub-carrier Pluton, I installed some props as I got impatient (the covered flight deck may be the culprit that it wouldn't submerge) so she is as slow as the old subs.