a core engine including a core flow path where air is compressed in a compressor section, communicated to a combustor section, mixed with a hydrogen based fuel and ignited to generate a high energy gas flow that is expanded through a turbine section;

a hydrogen fuel system configured to supply hydrogen fuel to the combustor through a fuel flow path;

a condenser arranged along the core flow path and configured to extract water from the high energy gas flow;

an evaporator arranged along the core flow path and configured to receive a portion of the water extracted by the condenser to generate a steam flow, wherein the steam flow is injected into the core flow path upstream of the turbine section; and

an intercooling system configured to inject water into the compressor section to reduce a temperature of a core airflow within the core flow path, wherein an overall pressure ratio of the compressor section is split between a first pressure ratio before injection of water and a second pressure ration after injection of water and a split pressure ratio of the first pressure ratio relative to the second pressure ratio is between 2 and 15.