Key Takeaways

  • Ethan Thornton argues the post-Cold War "Last Supper" forced defense consolidation and created cost-plus incentives that reward budget bloat over operational speed.
  • When Mach Industries first pitched its Glide system, the Army offered a 2035 roadmap; current procurement now demands fast, collaborative production to replenish depleted stockpiles.
  • Fixed-price development backed by private capital allows defense startups to outpace legacy prime contractors by taking development risk upfront.
  • Defense procurement is moving across three specific vectors: compressed production cycles, objective technical benchmarks, and direct collaboration with founders.

The Economic Trap of Cost-Plus Contracting

Defense primes did not become slow by accident. They were designed to be slow by the procurement rules written after the Cold War ended. When military spending dropped in the early 1990s, the Pentagon convened defense executives for what is now known as the "Last Supper," mandating mergers to keep the industrial base solvent.

Thornton points directly to this structural shift as the root cause of defense stagnation. “We pulled hundreds of defense contractors into a room and said, 'You know what? We can't keep you all alive. So I need you to create these conglomerations and we're going to start feeding you cost plus contracts so that regardless of what happens, you stay alive,'” Thornton said.

Under cost-plus contracts, a contractor receives reimbursement for allowable expenses plus an agreed-upon profit margin. Because profit scales directly with expenditures, any reduction in cost or cycle time directly reduces top-line revenue. As Thornton put it: “Cost plus contracting is another form of socialism and that's as clear as I can put it. When you give companies a socialist incentive for decades, it's actually not like they want to perform badly to survive. They actually have to charge the Pentagon more for things that don't make sense.” Incumbents optimize for contract compliance rather than combat capability, leaving them structurally unable to iterate at commercial speed.

From 2035 Roadmaps to Active Production

The traditional sales cycle reflected this legacy pace. When Thornton initially demonstrated Mach's Glide system to the Army, procurement officers responded with a timeline spanning more than a decade: “When I first pitched one of our products, Glide, to the Army, they said, 'Hey, this is an incredible thing. We'll roll this into our 2035 plan.'”

That multi-decade planning posture collapsed under the pressure of depleted munitions stockpiles and asymmetric drone threats. The Pentagon can no longer wait twelve years for prime contractors to complete initial design reviews. Buyers are turning to venture-funded suppliers who build finished hardware on fixed-price balance sheets before ever submitting a formal bid.

“And the nice thing is the Pentagon's one, they're getting faster, two, they're getting more objective in terms of what technology will actually help folks succeed. And three, they're getting a lot more collaborative,” Thornton noted. This shift mirrors the commercial aerospace transition of the last fifteen years. “Cost plus contracting from an incentive structure runs counter to developing excellent new technology. It runs counter to risk. It runs counter to good incentives for companies to actually go out and innovate. That's not a surprising thing. That's why SpaceX won.”

Why It Matters

This procurement shift alters how defense assets are underwritten. Cash flows at legacy defense primes rely on guaranteed cost-plus margins that mask operational inefficiency, while capital allocation is shifting toward balance-sheet-funded hardware companies that price risk directly. Investors who treat defense tech like traditional enterprise software underestimate the manufacturing requirements, but those who evaluate it like legacy prime contracting miss the margin expansion generated by fixed-price unit economics.