The E3-standard was a durable, sophisticated lifeboat capable of seating three passengers for four weeks of travel. The hull was flanked by four reinforced legs, that deployed fully-extended upon landing. Advanced landing and telemetry processors ensured the lifeboat remained upright during takeoff, descent and even through the turbulence of re-entry. The pod carried no onboard hyperdrive, meaning the E3-standard was useful for one-way trips only.
Within a year, the lifeboat's sensitive electronic systems were ruined by the natural elements of the swamp world, grounding Yoda on Dagobah forever. Yoda salvaged what he could from the pod, using parts to fashion a simple hut in the swamps.
This pod is one of two used by Yoda in Revenge of the Sith, and the art department ensured the two were visually different from one another. One concept for the 'Dagobah pod' was a rounded pod dragged, Podracer-style, by a rocket. Ultimately, the shots of Yoda's landing on Dagobah were cut from the movie, but were completed for inclusion in the Deleted Scenes section of the DVD release.