Ducted propellers run inside a shroud: cinewhoops, indoor and urban platforms, anything that flies close to people and walls. The blade is built for that duct, and the SKU is referenced to the Gemfan D90-3 those platforms were designed around.
Material follows application, not size: glass-fiber-reinforced PA66 where a platform needs stiffness under load, polycarbonate where it needs impact survival and low rotational mass. Several sizes are offered in both.
1 of 19 propellers in the line
Each SKU is referenced to the foreign part it is built to drop in for. If the part number on your BOM is here, the Anvil size is the domestic replacement; if it isn't, check the full cross-reference or send us the number.
| Anvil Part Number | Size | Drop-In For | Class |
|---|---|---|---|
| ANV-D3530 | 3.5×3×3 | Gemfan D90-3 / D90S-3 3.5″ | Gemfan ducted-class |
Send the part number on your BOM with your quantity, NDAA requirement, and timeline. Anvil Propulsion will tell you straight whether it's in the line, and other configurations are handled as custom programs.
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