"TRAINING PHASE,TO TEACH MAINTENANCE TECHNIQUES AND PRINCIPLES OF OPERATION; POWER REQUIREMENTS,AC, 110/220 VOLTS,60 CYCLE,3 PHASE; DIM, 132 IN L; 36 IN W; 58 IN H; THE TRAINER WILL CONTAIN THE F-111 AIRCRAFT SURFACE CONTROL SYSTEM ON A BENCH TYPE PANEL,ITEM HAS BEEN DESIGNATED THE F-111-1 MOBILE TRAINING UNIT(MTU)"