CREATE TABLE table_5009 ("Designation" TEXT, "Type" TEXT, "Length overall" TEXT, "Launch weight" TEXT, "Warhead weight" TEXT, "Range" TEXT)

What type has an overall length of 1.605 m?
SELECT "Type" FROM table_5009 WHERE "Length overall" = '1.605 m'
SELECT "Type" FROM "table_5009" WHERE "Length overall" = '1.605 m'