Lieutenant Commander

From The Great Machine

Lieutenant Commander is a commissioned officer rank used in the navy. The corresponding rank in most armies, marine corps and air forces is Major, and in the Royal Air Force and other Commonwealth air forces is Squadron Leader.

A Lieutenant Commander is a senior department officer on a large ship or space installation. They may also be commanding officer or executive officer (second-in-command) of a smaller ship or installation.

The rank of Lieutenant Commander is the third most senior line officer rank, subordinate to Commander which is suboordinate to Captain. Below this rank is the subordinate rank of Lieutenant.

See: Earthforce ranks, Alien ranks