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GCAPエンジンに関する英国防省による説明:
GCAP will position the UK, Italy and Japan at the forefront of next-generation combat aircraft development. (BAE Systems)
Joe Coles spoke to Simon Godwin, Press Secretary and Senior Communications Officer at UK Ministry of Defence.
"What is unusual about the powerplant?"
"The propulsion design will be highly integrated in the air platform, optimising overall performance, range and payload capability.
Through an innovative approach to Thermal Management System integration, utilising the gas-turbine as a heat ‘sink’ to recycle
thermal energy around the platform, removing the need for overboard venting and improves overall system efficiency.
Increased electrical power generation capability coupled with an intelligent power management system will meet the growing
demand for electrical power. This integrated power approach reduces the number of energy exchanges, maximising the potential
of the gas-turbine as the primary power source. Tempest is expected to begin its life as a crewed combat aircraft."

RRのテンペスト用エンジンAdvanced power and propulsion systemの説明:
The propulsion design will be aerodynamically matched to the air platform, optimising overall performance, range and payload capability.
Our optimised Thermal Management System will utilise the gas-turbine as a heat 'sink' to recycle thermal energy around the platform.
This removes the need for overboard venting and improves overall system efficiency.
Increased electrical power generation capability coupled with an intelligent power management system will meet the growing demand
for air vehicle electrical power. This integrated power approach reduces the number of energy exchanges, maximising the potential of
the gas-turbine as the primary power source.

両者は同じもの。