I'm not sure about when you would go to SWO school cuz I chose subs. What happens is this: -1st DIVO tour: conventional smallboy (DDG, FFG, CG). Qualify for pin. -Nuke School (1 year) -2nd DIVO tour: engine room of CV -Shore duty Stick SWO school somewhere in there. Probably before the first DIVO tour. If you stay on, you do a DH tour on a smallboy, then a DH tour in the engine room of a CV, etc, etc. So yes, SWO/N do conventional surface stuff. The annoying thing is that it's split, so by the time you make it to your DH tour on a smallboy, you haven't done a damn thing regarding SWO duties in a few years.