Boom Technology has formalised an until-now secret partnership with JAL, with the carrier putting US$10 million ($14.5m) into the company and ordering 20 of the faster-than-the-speed-of-sound aircraft.
The new-generation supersonic aircraft, scheduled to be launched in mid-2020s or later, has a maximum flying range of 8,334 kilometers at a speed of Mach 2.2 or 2,335 kilometres per hour.
While several other companies, including Boeing Co and Lockheed Martin Corp, are developing new supersonic jets, Scholl said his plan was likely to beat them to the market, as it does not require any new technology for regulator approval.
Boom Technology, seeking to build a supersonic jet for passenger travel, got a $10 million investment from Japan Airlines Co.as the USA start-up aims to revive ultra-fast travel that ended more than a decade back with the Concorde.
Boom founder and CEO Blake Scholl said his company has been "working with Japan Airlines behind the scenes" for more than a year.
"JAL is the first airline in history to make a material financial commitment to a faster future", Scholl said.
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According to Boom, a San Francisco to Tokyo flight would take only 5.5 hours, a huge chop off the current flight time of around nine hours.
As of March 2017, Boom had raised about $41 million in funding.
JAL is not the first business to back Boom. For obvious reasons, many of its global flights are long - Boom's jets could dramatically reduce that travel time for passengers willing to pay a premium.
Virgin entered into a $2 billion partnership with Boom past year, and at least five airlines have signed on to purchase a total of 76 supersonic jets. "Through this partnership, we hope to contribute to the future of supersonic travel with the intent of providing more time to our valued passengers while emphasizing flight safety", Yoshiharu Ueki, President of Japan Airlines, said in a press release.
JAL received a government bailout after a high-profile bankruptcy restructuring in 2010.