Bridging the Supersonic-to-Hypersonic Gap, Scientists Reveal Scramjet Igniter That Maintains Combustion Below Mach 5

· Thedebrief · Aug. 19, 2026, 2:16 p.m.
Aerospace Breaking News engineering hypersonic Aerospace Engineering hypersonic flight scramjet combustion technology
Summary
Scientists have developed the 'RD torch' igniter, a breakthrough technology that enables stable combustion in scramjets at speeds below Mach 5, potentially advancing hypersonic flight.
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