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| 14/05/2024 | Press Release: | Hermeus begins precooler testing with Pratt & Whitney F100 engine |
| 01/06/2023 | Press Release: | Hermeus receives first Pratt & Whitney F100 engine |
| 22/12/2022 | News: | Hermeus builds F100 into hypersonic engine Chimera II is a hypersonic turbine-based combined cycle engine - a hybrid between a turbine engine and a ramjet. This allows for both low-speed and high-speed operation. |
