The 1394T101 series Turn Coordinator is a panel-mounted instrument designed to display the combined rate of turn and rate of roll information as a rotating aircraft symbol, which aids in performing a standard-rate turn of 360 degrees in two minutes and aircraft control in partial panel instrument conditions. The instrument also includes an inclinometer which indicates slip or skid when not in a coordinated turn. The 1394T101 series does not contain any moving parts other than the displayed indication, and therefore does not make any audible sounds while powered on. Valid operation is confirmed by the absence of the red flag and/or by the optional “Tach” output signal.This 1394T101 series Turn Coordinator (EDMO# 1394T1017B) operates on 11-32V with a 3-pin connector, has a non-lighted bezel, black ball inclinometer indicator, and a brushless rotor.