2011 Keystone RV Passport East Coast 2590BH, 2011 Keystone RV Passport East Coast 2590BH Go Anywhere. With customer demand for lightweight, fuel-efficient travel trailers at an all-time high, the Passport ultra-lite finds favor with families who want to maximize fuel efficiency but maintain all of the conveniences of a well appointed, feature-packed RV. You'll never want to travel without your Passport.