Domestic NDAA-compliant 5-inch tri-blade — drop-in for the HQProp Ethix S5 (5×4×3). Made in Nevada, USA.
No performance numbers are published until backed by real test data.
Dimensions and fitment data are the referenced propeller's own published specification, not Anvil measurements.
If your bill of materials calls out HQProp Ethix S5, HQProp 5X4X3 V1S, Gemfan 5040 3-blade, — or an equivalent HQProp / Gemfan-equivalent 5-inch tri-blade — the Anvil Propulsion 5×4×3 is the domestic, NDAA-compliant replacement. Send us the foreign part number on your BOM and we'll confirm fitment.
| Anvil Part Number | Size | Drop-In For | Class |
|---|---|---|---|
| ANV-P5040 | 5×4×3 | HQProp Ethix S5 | HQProp / Gemfan-equivalent |
| ANV-P5040 | 5×4×3 | HQProp 5X4X3 V1S | HQProp / Gemfan-equivalent |
| ANV-P5040 | 5×4×3 | Gemfan 5040 3-blade | HQProp / Gemfan-equivalent |
Why replace it at all? Foreign-made propellers face tightening NDAA covered-country flow-downs and FCC restrictions. See our plain-language compliance guide and why the sourcing gap exists now.
Send your quantity, NDAA requirement, and timeline. We'll come back with availability and a quote.
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