Boom's XB-1 Supersonic Demonstrator Makes First Flight

Boom Supersonic's first aircraft, the XB-1, completed its first flight today and met 'all of its test objectives.' From a report: This initial test only saw the aircraft 7,120 feet above sea level and fly at a top speed of 238 knots (274 mph) -- far from Mach 1, the speed of sound. The first flight of XB-1 took place at the Mojave Air & Space Port in California, in the same airspace where the X-1 broke the sound barrier, the X-15 conducted test flights for altitude and speed records, and the SR-71 Blackbird was also tested. According to Boom, the XB-1 will be testing, among other things:

Augmented reality vision system: Two nose-mounted cameras, digitally augmented with attitude and flight path indications, feed a high-resolution pilot display enabling excellent runway visibility. This system allows for improved aerodynamic efficiency without the weight and complexity of a movable nose.
Digitally-optimized aerodynamics: Engineers used computational fluid dynamics simulations to explore thousands of designs for XB-1. The result is an optimized design that combines safe and stable operation at takeoff and landing with efficiency at supersonic speeds.
Carbon fiber composites: XB-1 is almost entirely made from carbon fiber composite materials, enabling it to realize a sophisticated aerodynamic design in a strong, lightweight structure.
Supersonic intakes: XB-1's engine intakes slow supersonic air to subsonic speeds, efficiently converting kinetic energy into pressure energy and allowing conventional jet engines to power XB-1 from takeoff through supersonic flight. Another thing being tested by XB-1 is the construction of a safety culture.

With XB-1 now a flying test vehicle, there are many flights ahead before we get to Overture One's first flight, much less dramatically expanding access to supersonic flight. This work will require much engineering and a resilient safety culture. But the first flight of the first step was carried out by Boom Supersonic today, March 22, 2024.

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