CREATE TABLE table_71833 ("Park" TEXT, "Tower height" TEXT, "Drop height*" TEXT, "Speed" TEXT, "Model" TEXT, "Opened" TEXT, "Height requirement" TEXT)

What opened with a drop height of 272feet?
SELECT "Opened" FROM table_71833 WHERE "Drop height*" = '272feet'
SELECT "Opened" FROM "table_71833" WHERE "Drop height*" = '272feet'