2 Fixed some typos
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The main reason for this is the temperature. Depending on the actual fuel the temperature in the main combustion chamber can be above 3000K. However, in the gas generator the temperature is kept below 1400-1600K. These lower gas tem- peraturestemperatures allow uncooled chamber construction and prevent melting or limit the erosion orof turbine blades.

Source: Sutton - Rocket Propulsion Elements

The main reason for this is the temperature. Depending on the actual fuel the temperature in the main combustion chamber can be above 3000K. However, in the gas generator the temperature is kept below 1400-1600K. These lower gas tem- peratures allow uncooled chamber construction and prevent melting or limit the erosion or turbine blades.

Source: Sutton - Rocket Propulsion Elements

The main reason for this is the temperature. Depending on the actual fuel the temperature in the main combustion chamber can be above 3000K. However, in the gas generator the temperature is kept below 1400-1600K. These lower gas temperatures allow uncooled chamber construction and prevent melting or limit the erosion of turbine blades.

Source: Sutton - Rocket Propulsion Elements

1
source | link

The main reason for this is the temperature. Depending on the actual fuel the temperature in the main combustion chamber can be above 3000K. However, in the gas generator the temperature is kept below 1400-1600K. These lower gas tem- peratures allow uncooled chamber construction and prevent melting or limit the erosion or turbine blades.

Source: Sutton - Rocket Propulsion Elements