Device for indicating a residual power margin of aircraft turbine engines

A device for indicating a residual power margin of aircraft turbine engines includes a measuring stage (7) associated with at least one turbine engine (2a, 2b) of an aircraft to measure a number of first parameters (TQ, NG, ITT) related to a power output of the engine (2a, 2b); a calculating unit (3) associated with the measuring unit to calculate at least one second parameter (PI, PIa, PIb) indicating the power output of the engine (2a, 2b) on the basis of the first parameters (TQ, NG, ITT); and a display (4). The display (4) includes a power scale (20) having at least one reference indicator (23, 24, 25) indicating an operating limit (PL1, PL2, PL3) of the engine (2a, 2b); and at least one cursor (21a, 21b) cooperating with the power scale (20) and the reference indicator (23, 24, 25) to simultaneously display a current value of the second parameter (PI, PIa, PIb) and an available power margin (M1, M2, M3) of the engine (2a, 2b).