Submarine

/TL
†

DX/Average

Default: IQ-6.

This is the ability to operate a specific type of underwater vehicle. As with Piloting, the default is to IQ, but when you learn the skill, always base it on DX.

Roll against Submarine to dive or to surface, to maneuver in underwater combat, or to negotiate hazardous waters. Failure can mean anything from a slight drift off course to a collision; critical failure may strand the vessel underwater!

Make an IQ-based Submarine roll for basic chart reading or practical oceanography, or to recall nautical laws and regulations.

You must specialize:

Free-Flooding Sub: Any small, open submersible. The crew is exposed to the water, and must wear underwater breathing gear. Prerequisites: Diving Suit or Scuba Defaults: Large Sub-5 or Mini-Sub-4.

Large Sub: Any crewed, long-duration submersible, including attack subs and missile subs. Defaults: Free-Flooding Sub-5 or Mini-Sub-4.

Mini-Sub: Any small, closed, short-duration submersible, typical of those used for scientific research. Defaults: Free-Flooding Sub-4 or Large Sub-4.

Modifiers: -2 for an unfamiliar submarine within your specialty (e.g., a diesel attack sub when you are used to a nuclear missile sub); -4 or more for a vessel in bad repair; -1 to -10 for navigational hazards.