XB-1 on the runway, seen from above its nose

The world’s first independently developed supersonic jet

Proven at Mach 1

XB-1 is the demonstrator aircraft that proved the technology behind Boom’s supersonic programs — validating the aerodynamics, materials, and systems that now carry through to Symphony and Overture.

The first civil supersonic aircraft since Concorde

Breaking the sound barrier, privately funded

XB-1 became the first independently developed aircraft to fly faster than sound, proving that a small, focused team can achieve what previously required a national program.

XB-1 Flight Test

Inside the cockpit

Real supersonic flight tests, narrated by the people who flew them.

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The road to Mach 1

  1. Flight 1

    March 22, 2024

    XB-1 with its landing gear extended above the desert, over the words “XB-1 takes flight”
    Flight duration
    12 min
    Altitude
    7,120 ft
    Mach
    0.4

  2. Flight 2

    August 26, 2024

    XB-1 flying above the desert, seen from above its left side
    Flight duration
    15 min
    Altitude
    10,400 ft
    Mach
    0.41

  3. Flight 3

    September 13, 2024

    XB-1 lifting off over the desert in golden evening light
    Flight duration
    32 min
    Altitude
    15,000 ft
    Mach
    0.45

  4. Flight 4

    September 21, 2024

    XB-1 lifting off the runway, its nose high, with a hangar and mountains behind
    Flight duration
    48 min
    Altitude
    16,150 ft
    Mach
    0.617

  5. Flight 5

    October 7, 2024

    XB-1 climbing against a blue sky, seen from above its left side
    Flight duration
    50 min
    Altitude
    17,800 ft
    Mach
    0.69

  6. Flight 6

    October 25, 2024

    XB-1 climbing above the desert, seen from behind
    Flight duration
    38 min
    Altitude
    20,000 ft
    Mach
    0.67

  7. Flight 7

    November 5, 2024

    XB-1 banking above desert mountains, seen from below
    Flight duration
    55 min
    Altitude
    23,015 ft
    Mach
    0.82

  8. Flight 8

    November 16, 2024

    XB-1 in level flight above the mountains, seen from its left side
    Flight duration
    54 min
    Altitude
    25,040 ft
    Mach
    0.82

  9. Flight 9

    December 12, 2024

    XB-1 flying above desert mountains, seen from below its left side
    Flight duration
    56 min
    Altitude
    27,716 ft
    Mach
    0.87

  10. Flight 10

    December 19, 2024

    XB-1 over mountains, seen from above its right side
    Flight duration
    46 min
    Altitude
    32,417 ft
    Mach
    0.95

  11. Flight 11

    January 10, 2025

    XB-1 seen from below against a deep blue sky
    Flight duration
    44 min
    Altitude
    29,481 ft
    Mach
    0.95

  12. Flight 12

    January 28, 2025

    XB-1 climbing against grey cloud
    Flight duration
    34 min
    Altitude
    35,290 ft
    Mach
    1.122

  13. Flight 13

    February 10, 2025

    XB-1 in level flight over the desert, seen from its left side
    Flight duration
    41 min
    Altitude
    36,514 ft
    Mach
    1.18
XB-1 in flight above a layer of cloud Overture cruising high above the clouds

What XB-1 proved,
Overture will fly

From demonstrator to airliner

The aerodynamic design, materials, and systems validated on XB-1 directly inform the design of Overture, reducing technical risk on the path to commercial supersonic flight.

Learn about Overture