Hermeus Corp. said last week that it has demonstrated turbojet to ramjet transition for its Chimera turbine-based combined cycle engine (TBCC)--a cross between a turbojet and ramjet engine--to allow reusable hypersonic planes to take off from regular runways. "This is one of the most important technological feats to making operational hypersonic flight a reality," Hermeus said. "The cost and speed at which the Hermeus team achieved this milestone is notable. Hermeus designed, built, and tested Chimera in 21 months for…
