cover of episode XB-1 and Overture: breaking barriers in air travel innovation

XB-1 and Overture: breaking barriers in air travel innovation

2024/11/21
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Lexicon by Interesting Engineering

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B
Blake Scholl
C
Christopher McFadden
N
Nick Sheryka
Topics
Blake Scholl: Boom Supersonic 公司成立十年,即将突破音障,这对于公司来说是具有里程碑意义的一年。协和式飞机失败的原因在于技术和市场的结合不足,票价昂贵且舒适度差。国际旅行需求的增长和航空技术的进步使得超音速飞行成为可能。Boom Supersonic 的目标是让超音速飞行与现在的商务舱价格相当,让超音速飞行成为一种常规的出行方式,并最终降低成本,让更多人能够体验超音速飞行。协和式飞机的失败是因为当时更注重国家声望而非经济效益。通过实际飞行测试,Boom Supersonic 积累了大量的经验教训,这些经验教训对飞机的设计至关重要。低速飞行是建造超音速飞机最困难的部分。将 Overture 的最高速度从 2.2 马赫降至 1.7 马赫,提高了飞机的实用性和效率。Boom Supersonic 非常重视超音速飞机的燃油效率、排放和噪音问题,正在努力降低超音速飞机的噪音,并使飞机能够使用各种类型的燃料,包括可持续燃料。Boom Supersonic 与监管机构合作良好,这使得飞机的审批过程更加顺利。Boom Supersonic 与监管机构保持透明和开放的沟通,这有助于获得监管机构的支持。Boom Supersonic 的目标客户是那些愿意为节省时间支付更多费用的商务旅客。超音速飞行可以促进人们之间的联系。 Nick Sheryka: 航空业在超音速飞机设计方面的知识和经验不足。XB-1 项目帮助 Boom Supersonic 积累了经验,并对 Overture 的设计产生了影响。XB-1 使用了稳定增强技术和改进的空气动力学设计来解决高速和低速飞行性能的矛盾。XB-1 使用增强视觉系统来解决飞机在起降时视野受限的问题。目前的技术还不足以支持超高音速(例如 5 马赫)的客机。Overture 的目标是让超音速飞行的价格与现在的商务舱价格相当甚至更低。超音速飞行将拓展新的旅游市场。Boom Supersonic 的目标是让超音速飞行成为常规的出行方式,并最终降低成本。Boom Supersonic 正在努力取消超音速飞行禁令。目前 Boom Supersonic 没有计划开发超音速公务机或更大尺寸的客机。目前的技术还不足以支持全电动的超音速飞机。XB-1 即将突破音障,这将是超音速航空领域的一个重要里程碑。 Christopher McFadden: 协和式飞机的失败更多的是由于成本问题,而非安全问题。

Deep Dive

Key Insights

What key factors have held back supersonic passenger travel since the Concorde era?

Supersonic passenger travel was hindered by the lack of intersection between technology and market demand. Concorde was technically advanced but unaffordable for most passengers, with $20,000 tickets and uncomfortable seating. Since then, international travel demand has surged, and technology has improved significantly, enabling supersonic flight at business-class prices.

What advantages does the XB-1 test program have over past supersonic projects like Concorde?

The XB-1 leverages proven technologies like carbon fiber composites, digital stability augmentation, and computationally optimized aerodynamics, rather than inventing new ones. It demonstrates that these technologies can be combined to create a supersonic jet that is efficient, safe, and affordable for passengers.

How is Boom addressing concerns about noise and emissions for supersonic aircraft?

Boom is designing Overture to be quieter and more fuel-efficient by using a wider wing for low-speed efficiency, custom-built turbo fan engines without afterburners, and the ability to run on 100% sustainable aviation fuel. These innovations aim to make supersonic travel environmentally friendly and acceptable to communities.

What are the primary regulatory challenges Boom has faced with supersonic flights?

Boom has faced minimal regulatory challenges by working closely with regulators like the FAA from the early stages of development. They involve regulators in the design process, ensuring transparency and buy-in, which has led to faster approvals and even the first-ever permit for civilian supersonic test flights over land.

Who is the primary audience for Boom's Overture supersonic airliner?

Overture initially targets business-class travelers who value time savings, with tickets priced similarly to current business-class fares. Over time, the cost is expected to decrease, making supersonic travel accessible to a broader audience, including those who might upgrade for time efficiency or switch from private jets.

What safety challenges arise with supersonic speeds, and how does XB-1 address them?

Supersonic travel isn't inherently more dangerous, but designing an aircraft that performs well at both high and low speeds is challenging. XB-1 uses technologies like stability augmentation and an augmented viewing system for takeoff and landing, ensuring safety across its operational speed range.

How does Boom see the economics of supersonic travel evolving with Overture?

Overture aims to achieve business-class price parity, with transatlantic flights costing around $3,500. As the market expands, supersonic travel is expected to unlock new trips and increase demand, similar to how jet travel revolutionized recreational travel in the past.

What is Boom's vision for the future of air travel?

Boom aims to make supersonic travel routine and eventually the default way to travel by iterating on efficiency and cost reduction. They also hope to lift the supersonic ban over land by working with regulators to establish a sonic boom noise standard.

Can supersonic aircraft be electrically powered?

Current energy density limitations make electric propulsion impractical for supersonic airliners. While smaller, slower aircraft may transition to electric power, supersonic jets will likely rely on traditional or sustainable fuels for the foreseeable future.

What milestones has Boom achieved with the XB-1 test program?

Boom has completed seven test flights with XB-1, reaching 80% of the speed of sound. They are preparing to break the sound barrier for the first time, marking a significant milestone as the first independently funded supersonic aircraft.

Chapters
This chapter explores the reasons behind the absence of supersonic passenger travel since Concorde. It highlights the lack of intersection between technology and market demand, with Concorde being unaffordable. The chapter then details advancements in technology, such as carbon fiber and advanced simulations, that now make supersonic flight economically feasible.
  • Concorde was unaffordable due to high ticket prices and limited seating.
  • Increased international travel and technological advancements in aircraft design and engines have created market readiness for supersonic flight.
  • Supersonic flight can now be achieved at a comparable price to business class travel.

Shownotes Transcript

Today, we sit down with Blake Scholl), founder and CEO of Boom Supersonic, and Nick Sheryka), XB-1 Chief Flight Test Engineer, to explore how they’re bringing supersonic passenger travel back to the skies.

From the groundbreaking XB-1 demonstrator to the Overture airliner, Boom is blending innovation and sustainability to make faster, more efficient air travel accessible again.

Join us as we examine the challenges, lessons, and breakthroughs shaping the future of supersonic aviation.

Also, check out our subscription plans) to discover Interesting Engineering’s premium features.