The Test Range Bottleneck: Why Your Hardware Timeline Is Wrong by a Year

Ask a founder building an autonomous surface vessel or a hypersonic test article when they'll have flight data, and you'll usually get a confident answer tied to engineering milestones. Ask them when they've booked range time at White Sands, Eglin, or Point Mugu, and the confidence evaporates.

Photo by Andy Barbour on Pexels.

This is the part of defense hardware investing that doesn't show up in a pitch deck. Founders model component lead times, software integration, and test-article production with reasonable precision. Then they treat the actual test event, the thing that proves the product works, as a scheduling afterthought. It never is.

Range access in the United States runs through a small number of facilities with decades of institutional backlog. Eglin Air Force Base books test windows a year or more out for anything involving airspace deconfliction, munitions, or classified payloads. Naval test ranges like Point Mugu and China Lake prioritize Navy and Marine Corps programs of record first; commercial and startup slots get fit around them, not the other way around. White Sands Missile Range has similar dynamics for land-based systems. None of this is secret. It's just rarely priced into a startup's Series A model.

I've watched three portfolio companies hit this wall in the last two years. Each had working hardware, funded test plans, and a customer waiting on data. Each lost somewhere between nine and fourteen months waiting for range availability, safety approvals, and the paperwork that comes with operating near other people's live-fire schedules. In two of those cases, the delay pushed the company into a bridge round it hadn't planned for, at terms nobody was happy with.

The mechanics of the delay are worth understanding, because they compound. Range scheduling isn't just about open calendar slots. It requires a safety case review, environmental clearance in some cases, coordination with range control for airspace or sea-space closure, and often a security review if the payload or sensor package touches classified capability. Each of those steps has its own queue, and queues don't run in parallel, they run in sequence, with government reviewers who have dozens of other programs ahead of yours.

graph TD
    A[Hardware Ready] --> B[Safety Case Submission]
    B --> C[Range Control Review]
    C --> D{Classified Payload?}
    D -->|Yes| E[Security Review Queue]
    D -->|No| F[Schedule Test Window]
    E --> F
    F --> G[Test Event]
    G --> H[Data Delivery to Customer]

There are a few ways founders can get ahead of this instead of discovering it the hard way. Book provisional range time early, even before hardware is finished; most ranges will hold tentative slots and let you shift them, which beats starting the request process cold. Build relationships with range schedulers the same way you'd build relationships with a program manager, because a known quantity moves faster through review than a stranger. And if your test plan allows it, consider private or allied-nation ranges (several exist in Australia and the UK with shorter queues) as a parallel path rather than a backup plan.

For investors, this changes how due diligence should work. A hardware roadmap that doesn't name a specific range, a specific target window, and a fallback option isn't a complete roadmap. It's a wish list with an engineering budget attached. When we evaluate a hardware-heavy deal now, we ask founders to walk through their range strategy with the same rigor we'd apply to their IP position or their customer pipeline. If they haven't thought about it, that's a signal worth weighing as heavily as any technical risk.

The companies that treat range access as infrastructure to be secured early, rather than a step to be solved later, are the ones that hit their demo dates. Everyone else is explaining a slip to their board, and usually blaming the engineering team for a delay that had nothing to do with engineering at all.