Combined Cycles

A Rendering of a Combined Cycle EngineOur TriJet Turbine/Rocket-based Combined Cycle Engine is configured to bridge the Turbine-Scramjet Thrust Gap.

Click the image to enlarge the diagram of theTrijet Turbine/Rocket-based Combined Cycle Engine.

TriJet Facts:

  • The TriJet closes the SoA TE – SoA Scramjet Engine Thrust Gap with an Ejector Ramjet
  • Ejector Ramjets Have Components at a TRL of 5-6
  • TriJet Capabilities are Beneficial For High Speed ISR/Strike Platforms
    • Powered Take-off & Landing
    • Significant Thrust Margins Throughout Operating Range, Mach 0 - 6+
    • Sustained Cruise Capability at Three Speed Regimes:
      • Subsonic - Refueling
      • Mach 3 to 4 - Turning Maneuvers & Optimal Range
      • Mach 6+ - Enemy Territory Over-Flight & Optimal Sortie Frequency
    • Mach 6+ Low Dynamic Pressure Operation - Munitions Dispense
    • Predictable Development Path w/o New Innovations - Manageable Risk Mitigation
  • The TriJet has the unique capability to also use smaller and lower Mach TE for subscale demonstrators because of the Ejector Ramjet’s ability to bridge the thrust gap all the way down to the subsonic speed regime. Smaller demonstrators will be faster to develop and will cost substantially less.

Our TriJet Engine configuration addressed high speed platform issues.

Our TriJet Engine configuration addressed today's high speed platform issues.
Click the image to read how the issues are addressed.

Studies have shown that the penalty of using a SoA TriJet vs. a TBCC system with an unavailable Mach 4 TE is less than 10% in achievable range.
This result does not justify to develop a very costly Mach 4 capable TE unless other needs arise.

We are ready now to develop the TriJet engine.