The return of supersonic flight, this time sustainable. Overture cuts long-haul travel in half.
Series D · 2026ConfidentialBlake Scholl, Founder & CEO
Boom
02 / PROBLEM
The last 50 years of aviation
Since Concorde retired, long-haul has gotten slower. Every step forward in aviation has come at the cost of speed — and humans have paid with their time.
Aviation has quietly gone backwards.
Your grandparents could fly New York to London in 3 hours and 15 minutes. Today, you need 7. The math of an entire profession — travel — has regressed.
Meanwhile, every other mode of transport has gotten faster: EVs outrun ICE cars, China's high-speed rail hit 350 mph, and commercial rockets now put people in orbit. Only aviation has slowed.
7 hours to London. Our grandparents did it in 3.
1976
JFK → LHR · Concorde
3h 15m
1985
JFK → LHR · 747
6h 45m
2003
JFK → LHR · Concorde retires
3h 15m
2025
JFK → LHR · 787 Dreamliner
7h 05m
2030
JFK → LHR · Overture
3h 45m
Boom
03 / WHY NOW
Three things that didn't exist for Concorde
Three curves have converged to make economical supersonic flight possible for the first time in history. None of them existed when Concorde was designed in the 1960s.
01
Advanced composites
Carbon-fiber composites and new aluminum-lithium alloys are 40% lighter than Concorde's aluminum skin, letting the airframe fly further on less fuel at Mach 1.7.
40% lighter airframe
02
Modern aerodynamics
Decades of CFD and wind-tunnel data — plus millions of compute hours — have yielded delta-wing configurations that beat Concorde's drag profile by 30%, flying more efficiently.
30% lower drag
03
Sustainable fuel
Sustainable aviation fuel (SAF) hit $4/gal in 2025 at scale, from $25/gal in 2015. Overture is SAF-ready on day one — net-carbon-neutral from first commercial flight.
SAF at scale · 100% compatible
Boom
04 / SOLUTION
Overture · the airliner built for mach 1.7
Purpose-built, net-zero, and economically profitable at airline scale. Overture is the first supersonic jet engineered for routine commercial service.
Overture is a 64-80 passenger airliner cruising at Mach 1.7 — twice the speed of any airliner flying today. It's designed for the long-haul business-class market where time is the only thing customers actually can't buy back.
Unlike Concorde, Overture operates profitably on business-class fares, not first-class. It's SAF-ready from day one. And its delta-wing configuration eliminates sonic booms over land via mach cutoff — letting it fly supersonic over oceans and subsonic over populated areas without routing penalties.
Final assembly at Boom's Greensboro, NC Superfactory — 400,000 sq ft, rolling out 33 aircraft per year at full capacity by 2029.
Performance
Cruise speed
Mach 1.7
Range
4,888 nm
Ceiling
60,000 ft
Capacity
Passengers
64 – 80
Configuration
Business · all-seat
Cabin pitch
58 in
Powerplant
Engine
Symphony
Count
4 × medium-bypass
Fuel
100% SAF compatible
Boom
05 / PRODUCT
Program milestones
XB-1 validated the physics. Overture is engineered. Symphony is in test. Every gate on the critical path has either closed or is within 24 months.
2025 · COMPLETED
XB-1 Demonstrator
CREW1SPEEDMach 1.1PURPOSEflight-test
1st flight · Jan 2025
2026 · IN BUILD
Symphony Engine
THRUST35,000 lbfBYPASSmediumSAF100%
Test cell · 2026
2029 · FIRST DELIVERY
Overture
PAX64-80SPEEDMach 1.7RANGE4,888 nm
Superfactory build
Boom
06 / DEMO · ROUTE PLANNER
Time saved is the product
Pick a city pair. Watch Overture cross the Atlantic in the time it takes a subsonic jet to load catering.
Route Planner · New York · London
ALTITUDE 60,000 FT · MACH 1.7
JFK → LHR
SFO → NRT
LAX → SYD
MIA → GRU
Overture flight time
3h 45m
AT MACH 1.7
3h 20m saved
VS SUBSONIC BASELINE
Distance
3,459 nm
Subsonic
7h 05m
Fuel · SAF
26.4k kg
CO₂ offset
100%
Boom
07 / MARKET
Where supersonic makes sense
500+ viable supersonic routes globally. A $90B annual long-haul business-class segment already paying a premium for time — with no product serving them at speed.
A segment hiding in plain sight.
The top 500 long-haul routes — NYC-London, SF-Tokyo, LA-Sydney, Dubai-NYC — represent $90B in annual business-class revenue. Every passenger in that seat today is paying a premium for something Overture actually delivers: their time back.
At $200 of revenue per seat-hour saved, a single Overture generates $4B of lifetime willingness-to-pay across its 30-year service life.
1,000 aircraft in service globally over 20 years is a $1T+ production opportunity — one Boeing and Airbus will not touch until the market is proven.
Boom
08 / UNIT ECONOMICS
The airline math is fine
Overture earns positive unit economics on business-class fares alone. No subsidy, no luxury premium required. The math closes on ticketed seats at airline-normal yields.
List price per aircraft$200M
Annual utilization (hours)3,400 hr
Avg block speedMach 1.6 effective
Seats per flight64 avg
Load factor76%
Avg yield per seat-mile$0.46
Fuel cost share (SAF)34%
Operator ROI · 10 yr22% IRR
Two revenue streams for Boom.
Aircraft sales · $200M list per Overture, delivered to airline customers. 30% gross margin at steady state. First 130 aircraft already under firm and pre-order agreements.
Symphony & aftermarket · engine MRO, spares, software-defined avionics updates, training — a recurring revenue stream that scales with the fleet and runs 35% gross margin.
The airline customer earns a superior ROI compared to a widebody, because time elasticity is real: a 3h 45m Atlantic crossing commands 2.4× the yield of a 7-hour 787 flight.
Boom
09 / TRACTION
130 aircraft on order · $26B backlog
Three major airlines have placed firm orders and pre-orders for Overture. The backlog already clears the build capacity for the first five years of production.
130
Aircraft on order
$26B
Backlog
2029
First delivery
5 yr
Build capacity sold
AIRLINE ORDERS · CURRENT
United Airlines
Firm order · 2021. Option to purchase additional 35.
15 firm · 35 opt
firm
American Airlines
Non-refundable deposit · 2022. Largest US supersonic order.
20 firm · 40 opt
firm
Japan Airlines
Partnership + pre-order. Strategic capital.
20 pre-order
pre-order
Undisclosed Mid-East carrier
LOI · announced 2025. Definitive agreement in Q4 2026.
10 LOI
LOI
Boom
10 / COMPETITION
Boom vs the two primes
Boeing and Airbus will not build a Mach-1.7 airliner before 2040. Boom is the only company building commercial supersonic — at all.
OVERTURE · 2029
Boom Supersonic
Cruise speedMach 1.7
JFK → LHR3h 45m
Range4,888 nm
Passengers64 – 80
SAF compatible100%, day one
Order book130 aircraft
787 DREAMLINER · 2011
Boeing / Airbus widebody
Cruise speedMach 0.85
JFK → LHR7h 05m
Range7,635 nm
Passengers242 – 335
SAF compatibleblends only
Supersonic programnone announced
Boom
11 / MOAT
Why this is defensible
A decade of engineering, two billion dollars deployed, a flown demonstrator, and a purpose-built factory — all under one roof before any legacy prime commits to supersonic.
01
Flight-proven physics
XB-1 broke the sound barrier in January 2025 — the only privately-designed, non-military supersonic aircraft to do so. Every aerodynamic assumption is now data.
02
Symphony engine IP
Boom is the first new commercial engine program in 50 years. Symphony is owned, not leased — the whole profit stack is captured in-house.
03
Superfactory
400,000 sq ft purpose-built in Greensboro, NC. 33 aircraft/year at full capacity. Competitors would need 5 years minimum to build equivalent capacity.
04
Certification pathway
Active Type Inspection Authorization with the FAA. The longest single-unit item on a competitor's critical path — and we've been working on it for 8 years.
Boom
12 / GO-TO-MARKET
From first delivery to fleet-scale
Launch on the Atlantic with three flag carriers, scale to Pacific long-haul, and layer on charter, government, and executive-lift as the fleet compounds.
01
Atlantic launch
NYC-LHR, NYC-FRA, BOS-LHR · United, American, JAL delivery.
State Department, head-of-state transport, DARPA strategic lift.
2033+
Why airlines, not a Boom airline.
Boom is an aircraft OEM. Airlines are our customers. We sell Overture to the people who already know how to run an airline.
This is the Boeing 707 playbook, not the Tesla playbook: sell the aircraft, stay out of the route economics, capture the manufacturing and aftermarket margin.
Meanwhile, the installed base earns Boom a 30-year aftermarket tail — Symphony overhauls, avionics updates, training — at 35%+ gross margin.
Boom
13 / TEAM
Aerospace engineering, startup discipline
The team that has already flown a private supersonic aircraft, built the first new commercial engine program in 50 years, and signed contracts with three airline primes.
BS
Blake Scholl
FOUNDER & CEO
Founded Boom in 2014 after selling Kima Labs (acq. Groupon). Pilot. Former Amazon engineer. Spent a decade proving skeptics wrong; XB-1's first flight closed the argument.
Dr. Bill James
CTO · AERO
ex-Lockheed Skunk Works
Kathy Savitt
CCO
ex-Boeing Global Services
Dr. Ben Murphy
VP ENG · SYMPHONY
ex-GE Aviation
Col. Jim Peitz (Ret.)
Chief Test Pilot
USAF F-22 · F-35 test wing
Mike Jagemann
Superfactory GM
ex-Tesla Giga Nevada
Hannah Walker
Head of Certification
ex-Boeing 787 cert lead
David Richardson
Head of Commercial
ex-Airbus A350 program
Boom
14 / THE ASK
Series D · to first delivery
To complete Symphony engine certification, accelerate Superfactory ramp, and deliver the first commercial Overture to United Airlines in 2029.
$800M
SERIES D · $6.5B POST · Q2 2026
42%
ENGINE · SYMPHONY
Test cell to type certification; engine MRO network buildout.
36%
SUPERFACTORY
Greensboro ramp to 33 aircraft/year. Tooling, production line scaling.
22%
CERT & DELIVERY
FAA Type Certification, airline integration, first-delivery support.