Ctrip and Japan Airlines-backed supersonic aircraft developer Boom has completed a $100m series B round that brought its total funding to more than $140m.

Boom Supersonic, a US-based supersonic aviation developer backed by air carrier Japan Airlines and travel agency Ctrip, closed a $100m series B round on Friday led by impact investment firm Emerson Collective. Y Combinator Continuity, the mid-stage venture capital fund operated by accelerator Y Combinator, also took part in the round alongside venture capital firms…

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