If a US drone program has an NDAA requirement attached to it, the propeller on the aircraft is part of that requirement. This guide covers what "NDAA-compliant" actually means for a propeller, why the parts most platforms were designed around no longer qualify, how to vet a domestic replacement, and how to spec one into your program — in plain language, with the caveats where they belong.
What "NDAA-compliant" means for a drone propeller
NDAA covered-country and flow-down requirements ban federal agencies from purchasing or operating UAS — and their components — from covered foreign entities, and they extend to federal grants, contracts, and cooperative agreements. Compliance is required at the component level, not just the system level, and primes flow the requirements down to their suppliers. For a propeller, four things have to hold: a non-covered manufacturer, no covered-entity materials anywhere in the supply chain, full traceability documentation, and a compliant production facility. The verification checklist breaks each one down, and our compliance page covers the regulatory landscape in full.
Why the props you already fly are the problem
Most US FPV and Group 2 airframes were designed and tuned around foreign-made tri-blade propellers — parts that programs under covered-country flow-downs typically can't fly. The deciding factor is country of origin and documentation, and the practical choice is redesigning the platform or finding a domestic drop-in.
What "drop-in" has to mean
A replacement propeller only spares you a redesign if it matches the geometry the platform was tuned around: same diameter, same pitch, same blade count, and the same mount. That's the bar Anvil engineers to — each family in the line is built to a specific size class on all four. If the numbers themselves are unfamiliar, how to read a propeller size covers diameter, pitch, blade count, and hub.
The line
The nine families of domestic, NDAA-compliant drone propellers, each quoted on request:
| Size | Family | Size class | Material |
|---|---|---|---|
| 10×5×3 | ANV-P1050 | 10×5×3 class · cinelifter | Glass-fiber nylon |
| 8×4×3 | ANV-P8040 | 8×4×3 class | Glass-fiber nylon |
| 5.0×4.0×3 | ANV-P5040 | 5×4×3 class | Polycarbonate |
| 7×4×3 | ANV-P7040 | 7×4×3 class | Glass-fiber nylon |
| 10×5.1×2 | ANV-F1051-2 | 10×5.1 folding class · 2-blade coupling | Glass-fiber nylon |
| 10×5.1×3 | ANV-F1051-3 | 10×5.1 folding class · 3-blade coupling | Glass-fiber nylon |
| 3×2.5×3 | ANV-P3025 | 3×2.5×3 class · T-mount | Polycarbonate |
| 3×3×3 | ANV-P3030 | 3×3×3 class · T-mount | Polycarbonate |
| 3.5×3×3 | ANV-D3530 | 90 mm ducted class · 3-blade | Polycarbonate |
| 3.5×2.4×5 | ANV-D3524-5 | 90 mm ducted class · 5-blade | Polycarbonate |
Materials
Material follows application, not size. Glass-fiber-reinforced PA66 goes where a platform needs stiffness under load — lift, payload, heavy multirotor. Polycarbonate goes where it needs impact survival and low rotational mass — racing, freestyle, training, attritable. The right one depends on what the airframe is doing rather than how big the propeller is; the polycarbonate vs glass-fiber nylon piece goes through the trade-offs. Sizes and mounts outside the nine families are handled as engineered programs, not catalog stock.
How to vet any supplier (including us)
- Is it domestic from the resin up? Where do the resin and fiber reinforcement come from — documented?
- Where is the propeller molded, and who owns the facility?
- What ships with the part: lot numbers, material certs, supplier declarations, chain of custody?
- Are any suppliers in the chain covered entities or their subsidiaries?
A US label is not a US supply chain — verification has to reach the sub-tier. Anvil is built around these questions, with Nevada-based production and material provenance documented on every production lot.
Speccing a replacement into your program
When you request a quote, include four things: the size or foreign part number you're replacing, your quantity, the program requirement the paperwork is for, and your timeline. That's enough for a real availability answer — send it here, or request the data sheet for a specific family from its product page.