CEO of failed supersonic plane startup on what went wrong — and how other companies might find success
Supersonic startup Exosonic closed its doors on Friday following low customer interest and difficulty raising funds. Exosonic Supersonic aviation startup Exosonic shut down in November after five years in business. The California-based startup was working on faster-than-sound jets for commercial and military use. Funding, low customer interest, and a preference for hypersonic flight negatively affected business, its CEO said. A handful of startups are vying to revive supersonic flight, but one contender just dropped out of the race. Exosonic, which had been working for five years to build faster-than-sound jets for commercial and military use, announced its shutdown on Friday, citing a lack of continued funding and low customer interest. The company had two main projects: a quiet passenger plane capable of Mach 1.8 speed and an uncrewed supersonic aircraft for fighter jet target practice. It had backing from private equity investors, a contract from the US Air Force , and a