With the release of the 3rd edition D&D system, the rules covering a character's skills have been greatly updated. Below is a mapping of the Spelljammer proficiencies from 2nd edition mapped to their new counter-parts.
| Ambidexterity(CSH) | Two-Weapons Fighting feat (or Ambidexterity feat in 3e)[PHB] |
| Astronomy(WCC) | Knowledge (wildspace) skill[PHB] |
| Balance(WCC) | Freefall feat |
| Boarding Pike(SJR1) | Martial Weapon Proficiency feat[PHB] |
| Carpentry (Spelljamming)(WCC) | Craft (carpentry) skill[PHB] |
| Cartography(CSH) | Craft (cartography) skill[PHB] |
| Fast-Talking(CSH) | Bluff skill[PHB] |
| Fire Control(WCC) | Wildspace Survival skill[PHB] |
| Fortune Telling(CSH) | Bluff skill[PHB], Knowledge (arcana or religion) skill[PHB], and/or Perform (act) skills[PHB] |
| Freefall(WCC) | Freefall feat |
| Grappling Hook(SJR1) | Exotic Weapon Proficiency feat[PHB] |
| Heraldry (Space)(CSH) | Knowledge (nobility and royalty) skill[PHB] or Knowledge (local) skill[PHB] |
| Languages, Space(WCC) | Speak Language skill[PHB] |
| Large Weapons (Ship-Mounted)(CSH) | Profession (siege engineer)[DMG] |
| Leadership(WCC) | Despite the name, this isn't analogous to the Leadership feat from the Dungeon Master's Guide. Leave this one to prestige classes, like the Stellar Corsair's "Inspire the Crew" ability. |
| Looting(CSH) | Search skill[PHB] |
| Navigation, Celestial(WCC) | Profession (wildspace navigator) skill[PHB] |
| Navigation (Phlogiston)(CSH) | Phlogiston Sense feat |
| Navigation (Wildspace)(CSH) | Profession (wildspace navigator) skill[PHB] |
| Observation(CSH) | Listen skill[PHB], Spot skill[PHB], Alertness feat[PHB] |
| Planetology(CSH) | Knowledge (planetology) skill[PHB] |
| Planetology(WCC) | see Spelljamming History proficiency |
| Sail Manipulation(WCC) | Profession (spacehand) skill[PHB] |
| Semaphore(WCC) | Speak Language skill[PHB] |
| Shipwright(CSH) | Craft (shipwright, spelljammer) skill[PHB] |
| Signaling(CSH) | Speak Language skill[PHB] |
| Slow Breathing(WCC) | Wildspace Survival skill |
| Slow Respiration(CSH) | Slow Respiration feat |
| Spacefighting(SJR1) | Freefall feat |
| Spacemanship(CSH) | Profession (spacehand) skill[PHB] |
| Spelljamming(CSH) | This proficiency will be modeled by the ship to ship combat system. |
| Spelljamming History(WCC) | Knowledge (history) skill[PHB] or Knowledge (local) skill[PHB]; needs to specialize to particular world or time period |
| Survival (Wildspace)(WCC) | Wildspace Survival skill |
| Weapon Loader(WCC) | Profession (siege engineer)[DMG] |
| Wheel Lock Pistol(SJR1) | Exotic Weapon Proficiency (firearms) feat[PHB] |
| Zero-Gravity Combat(CSH) | Freefall feat |