The intermediate (30 min. rating) is referred to as 'Military Power' in the reference

Overview

Data on manufacture and type

Manufacturer: General Electric Company

Powerplant type: Turbine

Normal Ratings

Uninstalled, ISA sea level, static

Max continuous power: 933 kW (1250 hp)

Take-off / rated power: 1119 kW (1500 hp)

Intermediate power: 1044 kW (1400 hp)

One Engine Inoperable (OEI) Ratings

Uninstalled, ISA sea level, static

Aircraft using the GE T58-GE-5