---
title: "Boom Supersonic Shares One Engine Core Between Jets and Turbines, Loses $1.25B"
description: "One core is meant to power a 2029 supersonic jet and a gas-turbine business; Crusoe walked from $1.25bn, and United doubts the 2029 date too."
author: "Luis Goa"
published: 2026-10-30T21:41:54Z
modified: 2026-10-31T05:10:03Z
url: https://rews.cc/a/boom-supersonic-shares-one-engine-core-between-jets-and-turb-4d23ea
language: en
tags: ["transport", "ai", "power", "tech", "business"]
publisher: "Rews (https://rews.cc)"
---

# Boom Supersonic Shares One Engine Core Between Jets and Turbines, Loses $1.25B

*One core is meant to power a 2029 supersonic jet and a gas-turbine business; Crusoe walked from $1.25bn, and United doubts the 2029 date too.*

By Luis Goa · October 30, 2026 · https://rews.cc/a/boom-supersonic-shares-one-engine-core-between-jets-and-turb-4d23ea

## In brief

- Boom Supersonic’s Sprint Core will power both its Overture jet engine and its data-center gas turbine
- Crusoe cancelled a $1.25bn, 1.21GW order for 29 Boom turbines in September; Crusoe disputes Boom’s account of why
- United CEO Scott Kirby says Boom’s 2029 Overture delivery date “is not going to happen”
- FAA’s proposed rule (docket FAA-2026-6935) would cap sonic boom overpressure at 0.11 psf to allow overland supersonic flight
- Boom’s Greensboro, NC airliner factory has sat idle since 2024; its lease can be voided if headcount is under 500 by Dec 31, 2026

Boom Supersonic’s business plan runs on one piece of hardware doing two jobs. The Sprint Core is a 14,000-pound assembly of compressor, combustor and high-pressure turbine that the company shipped out of its research shop in under a year. Boom plans to fire it for the first time before Thanksgiving, at a test site at the Colorado Air & Space Port. One branch of that core becomes Symphony, the engine meant to push the Overture supersonic airliner to Mach 1.3 by 2029. The other becomes Superpower, a 42-megawatt natural gas turbine sold to AI data centers. The logic is that a turbine business subsidizes an airliner that has yet to fly, or that an airliner engine programme de-risks a turbine business entering a crowded market. As [Ars Technica reported](https://arstechnica.com/gadgets/2026/10/united-airlines-ceo-doubts-supersonic-airliner-from-boom-will-be-ready-by-2029/), CEO Blake Scholl framed the pairing as “a renaissance in energy and in supersonic flight” when he unveiled the turbine factory on October 22. Nine days earlier, the larger of Boom’s two energy bets had already collapsed: a $1.25 billion turbine order, cancelled by its buyer.

**One core, two products, two customers** How Boom's turbine core splits between the airliner and the data-center business

| From | To | How |
| --- | --- | --- |
| Sprint Core *(compressor, combustor, turbine; first fire due before Thanksgiving 2026)* | Superpower turbine *(42 MW gas turbine)* |  |
| Sprint Core *(compressor, combustor, turbine; first fire due before Thanksgiving 2026)* | Symphony engine *(shares design with Superpower)* |  |
| Superpower turbine *(42 MW gas turbine)* | AI data centers | ~250 MW in 2027 |
| Symphony engine *(shares design with Superpower)* | Overture airliner *(targeted 2029 entry into service)* | certification pending |

Based on [Boom Supersonic press materials](https://boomsupersonic.com/press-release/superpower-superfactory)

The factory Boom unveiled on October 22 is in Centennial, Colorado, not Greensboro, North Carolina, where the airliner is supposed to be built. It cost $150 million, covers close to 200,000 square feet across two buildings, and is meant to employ up to 500 people once running, according to [Boom’s press release](https://boomsupersonic.com/press-release/superpower-superfactory). The company says it will deliver its first Superpower turbines to data-center customers in mid-2027, scale to 25 units a year — 1 gigawatt of nameplate capacity — by 2028, and to 50 units a year, 2 gigawatts, by 2029. US Secretary of Energy Chris Wright and Colorado Governor Jared Polis both attended the unveiling, the kind of federal and state presence Boom has drawn throughout its supersonic-flight push as well.

[![Boom Unveils Sprint Core & the $150M Superpower Superfactory](https://i.ytimg.com/vi/3u1JBjashfc/hqdefault.jpg)](https://www.youtube.com/watch?v=3u1JBjashfc)

Boom’s October 22 unveiling of the Sprint Core and the Centennial, Colorado turbine factory, published by Boom Supersonic. Video: Boom Supersonic · YouTube

Those ramp numbers were supposed to start with Crusoe, the AI data-center developer that had agreed in December 2025 to buy 29 Superpower units — 1.21 gigawatts, at $1.25 billion, or about $1.03 million per megawatt of contracted capacity. The order was bundled with a $300 million Series B round for Boom led by Darsana Capital Partners, and Crusoe was billed as the turbine line’s launch customer. On September 25, Scholl announced on [X](https://x.com/bscholl/status/2103614826862010443) that the partnership was over, writing that turbines were “no longer part of Crusoe’s near term primary power mix at Abilene/etc., so a launch partnership just didn’t make sense.” Crusoe had just closed a $3.9 billion Series F at a $30.9 billion valuation, as [TechCrunch reported](https://techcrunch.com/2026/09/25/crusoe-abandons-1-25b-plan-to-use-boom-turbines-at-ai-data-centers/). A Crusoe spokesperson, Andrew Schmitt, disputed Scholl’s framing afterward, saying the company’s energy plans “haven’t changed” and that it still intends to deploy gas turbines — “just not Boom’s.” Scholl says Boom will still deliver about 250 megawatts of Superpower turbines to unnamed sites next year, which is roughly a fifth of the capacity the Crusoe deal alone would have represented by 2028.

## Whether the jet still flies in 2029

The turbine business was supposed to be the side bet. The airliner is the one with 130 conditional orders from American, Japan Airlines and United, each backed by a non-refundable deposit of undisclosed size. United CEO Scott Kirby, interviewed on the Office Hours: Business Edition podcast published October 28, put Boom’s official 2029 delivery date in plain terms: “It’s not going to happen in ’29 — it’s going to take longer.” Kirby had already set the odds of Overture entering service at 50-50 back in March; this is a downgrade from a maybe to a no, on the date at least, from one of the three airlines whose money is on the table. Kirby still called United the likely launch airline “if it happens,” but flagged that Boom has “a lot of hurdles to overcome” in certification, and that clearing them “is not a guarantee.”

Regulation is one of those hurdles, and it has moved in Boom’s favor. On June 30, the FAA issued a [proposed rule](https://www.federalregister.gov/documents/2026/07/02/2026-13440/enabling-supersonic-overland-flight), docket FAA-2026-6935, that would replace the 1973 ban on civilian supersonic flight over US land with a noise limit: a sonic boom overpressure at the ground of no more than 0.11 pounds per square foot, following a June 2025 executive order from President Trump. The agency is targeting a final rule by mid-2027. Boom’s case that it can meet that threshold rests on two flights of its XB-1 demonstrator in January and February 2025, which the company says broke the sound barrier a combined six times at speeds up to Mach 1.18 without an audible boom reaching the ground, using the Mach cutoff effect in which a shockwave refracts upward above roughly 30,000 feet. That data covers a single-seat testbed, not a 60-to-80-passenger airliner; whether Symphony-powered Overture reproduces the same acoustic footprint at production scale is still unmeasured.

## The factory that isn’t building anything yet

While the Colorado turbine plant was being toured by a cabinet secretary and a governor, Boom’s actual airliner factory, in Greensboro, North Carolina, sat idle, as it has since construction finished in 2024. North Carolina earmarked roughly $106.75 million for the site, including $56.75 million to reimburse Boom’s construction costs and $15 million for grading and site prep, according to [Hoodline](https://hoodline.com/2026/03/greensboro-s-50-million-supersonic-ghost-hangar-puts-state-on-the-clock/), which reports Boom has already drawn down the bulk of the construction-reimbursement money. In exchange, Boom committed to hire 1,761 workers at the 179,000-square-foot hangar at Piedmont Triad International Airport. The lease lets the airport authority terminate if Boom employs fewer than 500 people there by December 31, 2026 — two months from now. Boom has not disclosed its current Greensboro headcount.

Boom’s own account is that the Colorado turbine work and the Overture engine work are converging, not competing: the Sprint Core firing before Thanksgiving is meant to validate hardware for both Symphony and Superpower at once. That makes the firing the more informative number to watch than anything in a press release. If the core runs, Boom gets a tested building block for an engine and a generator at the same time. If it doesn’t, the company has a cancelled $1.25 billion turbine order, a jet customer publicly discounting its delivery date, and a hangar in North Carolina that has two months left to hit a 500-person hiring floor it has not confirmed it will clear.