What is the order year of obi builder and 05.505 model that is 30 feet long?
CREATE TABLE "fleet_roster" (
  "order_year" text,
  "builder" text,
  "model" text,
  "length_ft" text,
  "engine_transmission" text
);
SELECT "order_year" FROM "fleet_roster" WHERE "builder"='obi' AND "length_ft"='30' AND "model"='05.505';