Spike S-512 Supersonic Business Jet Targets NY–Paris in 4 Hours

Boston-based Spike Aerospace has advanced development of its S-512 Diplomat, a supersonic business jet designed to connect New York and Paris in under four hours while meeting noise standards for overland flight.

The 18-passenger jet is being engineered for speed, fuel efficiency, and low-noise operation, using “low-boom” aerodynamic shaping to minimize the disruptive sonic boom that led to a U.S. ban on supersonic flights over land in 1973. The company says achieving these noise targets could open new overland routes, reducing long-haul travel times by up to 50 percent.

“Our goal is to redefine long-distance travel for business and government leaders, offering the speed of supersonic with the comfort and discretion of a private jet,” said Spike Aerospace CEO Vik Kachoria.

The S-512 aims to reach speeds of Mach 1.6 (approximately 1,200 mph), cutting travel times in half. For example, flights from New York to Paris could take under four hours, and accommodate up to 18 passengers in a windowless cabin featuring high-definition digital screens that display panoramic views from external cameras.

The current design phase focuses on refining aerodynamics, cabin configuration, and noise reduction technology. The S-512 will offer a cabin tailored for productivity and relaxation, catering to high-end business and government travelers.

Spike Aerospace is collaborating with aerospace experts, suppliers, and academic partners to accelerate development, certification planning, and market entry. The company is also launching a refreshed brand and updated website to highlight the jet’s technological milestones.

Supersonic passenger service has been absent since Concorde’s 2003 retirement, due to noise, cost, and environmental concerns. Projects like the S-512 aim to overcome these hurdles with advanced materials, efficient engines, and reduced noise footprints.

While performance figures and an entry-into-service date remain undisclosed, Spike envisions the S-512 Diplomat as a quiet, sustainable aircraft capable of operating on routes once thought impossible for supersonic travel.


Related News: https://airguide.info/?s=supersonic, https://airguide.info/?s=Spike+Aerospace

Sources: AirGuide Business airguide.info, bing.com, interestingengineering.com