Episode summary
Defense CEO on Elon Musk, Hypersonic Missiles & the Future of Defense
How I Invest With David Weisburd
· · Hosts: David Weisburd · Guests: Bryon Hargis
Summary
Bryon Hargis argues that U.S. defense is increasingly a manufacturing problem, not just a technology problem. He says America can still field advanced systems, but it risks losing deterrence if adversaries such as China can produce weapons at far greater scale and lower cost. The case for hypersonics, in his view, is that the U.S. needs weapons it can afford to make by the thousands, not exquisite systems it cannot replenish.
He says SpaceX taught him that aerospace progress comes from eliminating unnecessary complexity, using data instead of hunches, and shortening iteration cycles. That experience shaped Castelion’s approach: product and sales are one function, customer discovery comes first, and the company hires for mission alignment, technical judgment, and trustworthiness rather than resume polish.
Hargis also describes how hard it was to fund a defense-hardware startup in 2022, after nearly 100 VC rejections, and how a major investor changed the company’s access to capital and debt. Castelion’s long-term bet is that Project Ranger in New Mexico will let it manufacture hypersonic weapons at massive scale and eventually compete with traditional primes.
Key takeaways
- Hargis says deterrence depends on affordable mass production, because "You can't win a war if you run out of weapons."
- He argues SpaceX’s biggest lesson was process discipline: eliminate unnecessary features, test quickly, and avoid engineering work that does not matter.
- He says Castelion treats sales and product as one team so the company can translate customer problems into buildable weapons.
- He says the company screens heavily for mission-driven motivation because people hired only for money tend to leave when conditions worsen.
- He says Project Ranger in Rio Rancho, New Mexico is designed to produce 2,000 Blackbeard weapons per shift and support future systems too.
Notable quotes
“And you can't win a war if you run out of weapons”
“We really vertically integrate when we can't find that. And in aerospace, a lot of the core of the problem is really not that somebody can't build that whatever device or widget that you're buying”
“Best part is no part”
“I don't care if they identify as a sales person or product person. But you want somebody that can do that translation”
“The thing is that's really frustrating is we have just so many incredible new tools and capabilities and technology that would have made like getting to the moon easier”
How the episode opens
Congratulations on the billion-dollar Series C led by JP Morgan, Carlyle, and Andreessen Horowitz. Why is developing hypersonic missiles necessary for the defense of the United States?
There's a ton of work that goes into a successful fund raise, which this one's actually the first one that's been led by our CFO Andrew Krites. He did a phenomenal job. The strength of this round in particular hinges on that question, why hypersonics?
We've been through a period of several decades decades where American dominance was so supreme that we didn't have to focus on the fundamentals. And what's happened in the past decade is that's becoming not true anymore. And unfortunately, just the inertia of large organizations wasn't necessarily addressed at the same time frame that other people were closing that gap.
And so, we're in a position now where there's certainly sufficient munitions to do near-term operations, and you can see the administration saying that they have what they need, but I think there's a recognition now that in the long run, especially as you go up against you say more capable manufacturing adversaries, let's take China as an example, they're going to have massive production capacity to produce weapons at scale. And you can't win a war if you run out of weapons. And in fact, it emboldens folks if they think that they can outproduce you.
And so, we have to get back as a country to being on top in terms of defense manufacturing, which is really what I see the purpose of Kratos doing is we can fix defense manufacturing. We can be a large part in helping to address the time to develop these systems, the cost of them, and the scale. Because like the only way that the government can afford thousands, tens of thousands, hundreds of thousands, whatever the number is necessary is that the price of whatever it is has to be times that quantity has to be affordable.
From the episode’s captions: roughly the first two minutes, lightly cleaned. Keep watching on YouTube →
Topics
- defense manufacturing capacity
- hypersonic missiles
- elixir of deterrence at scale
- spacex speed and iteration
- venture capital fundraising
Companies and tickers mentioned
- Castelion
- SpaceX
- AlphaSense
- Elon Musk
- Starshield
Watch the episode
Watch “Defense CEO on Elon Musk, Hypersonic Missiles & the Future of Defense” on YouTube
Summary, takeaways and quote selection by Octagon. Quotes are short excerpts; the full conversation is in the episode.
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How I Invest With David Weisburd, this episode and its artwork belong to David Weisburd. Octagon is not affiliated with the show; this page is an independent summary.
