ARM NSWGR K and 55 Class to be released In 1916, Clyde Engineering were awarded a contract for the construction of 300 K class locomotives. Following experiments with Southern type valve gear on an earlier class, Chief Mechanical Engineer Edward Lucy proposed its installation on these locomotives. The use of Southern valve gear was rare on locomotives operating outside the United States of America. Its use in this instance signaled the first NSWGR main line design with outside valve gear. The wi