Gemfan Vortex 8x9 Fixed-Wing Propellers | 2-Pack CW or CCW
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8x9 Electric Props for Fixed-Wing Builds
Gemfan Vortex 8X9E and 8X9R propellers feature an 8-inch diameter, 9-inch pitch and two-blade design in glass-fiber nylon. Choose a two-pack of the listed CW or CCW version to match your aircraft's motor rotation and installation requirements.
When preparing your next fixed-wing build or replacing worn props, check the shaft fit and hub clearance first, then select the required rotation. Each option contains two props of the selected direction, not a mixed counter-rotating pair.
Choose Your Rotation
- 2PCS 8X9E CW: Two 8X9E propellers, labeled clockwise in the listing.
- 2PCS 8X9R CCW: Two 8X9R propellers, labeled counterclockwise in the listing.
Confirm the manufacturer's rotation-viewing convention and the propeller markings before fitting. E/R labels alone do not establish correct installation for every tractor or pusher arrangement.
Key Features
- 8-inch diameter and 9-inch pitch: For a power system specifically matched to this propeller load.
- Two-blade construction: Intended for electric fixed-wing aircraft applications.
- Glass-fiber nylon: Listed material.
- Separate rotation options: Select CW or CCW as required.
- Two-pack: Two individual propellers per selected option.
Technical Specifications
- Brand: Gemfan.
- Series: Vortex.
- Models: 8X9E / 8X9R.
- Diameter: 8 inches.
- Pitch: 9 inches.
- Blade count: Two per propeller.
- Material: Glass-fiber nylon.
- Hub diameter: Listed 19mm.
- Hub thickness: Listed 12.3mm.
- Center hole: Listed 6.35mm / 0.25 inch.
- Weight: Listed 17.05g per propeller.
- Packaged weight: Listed 40.57g; packaging and contents may affect actual weight.
Shaft and Adapter Compatibility
The source lists six adapter-ring sizes: 3, 3.17, 4, 5, 6 and 8mm. The listed 8mm adapter conflicts with the stated 6.35mm center bore, so do not assume 8mm shaft compatibility or that all listed rings fit this propeller. Confirm the actual bore, included adapters and motor shaft before purchase. Do not enlarge the bore or force an incompatible adapter based on this listing.
Check the 19mm hub diameter, 12.3mm hub thickness, shaft length, retaining hardware and airframe clearance. Motor, ESC and battery suitability must be verified for the 8x9 load; an 8-inch diameter alone does not establish compatibility.
Perfect For
Experienced RC pilots selecting replacement or spare electric propellers for a compatible fixed-wing power system, including correctly configured counter-rotating installations using separately selected directions.
What's Included
- 2 × Gemfan Vortex propellers in the selected 8X9E CW or 8X9R CCW version.
Adapter rings are described in the source, but the size conflict above requires confirmation of the actual supplied set. Motors, aircraft, battery and mounting hardware are not listed as included. Any “No plug” option text is unrelated to the mechanical propeller fit and does not specify an electrical connection.
Installation and Safety
- Disconnect the flight battery before installing or removing propellers.
- Remove propellers during powered bench configuration and motor tests.
- Check rotation, blade orientation, balance and clearance before operation.
- Inspect blades and hubs for damage; replace cracked, distorted or worn props.
- Use compatible retaining hardware and follow the motor manufacturer's tightening instructions.
- Verify the manufacturer's RPM limits and monitor power-system current and temperature. No maximum RPM is established in this listing.
- Keep people and loose objects clear of the propeller arc.
For rotation, adapter or fitment questions, contact sales@buyrcdroneoutlet.com.
Shipping Policy
Estimated Delivery: Orders ship within 24–48 hours with full end-to-end tracking. Transit times typically take under 13 days (6–12 business days) to most destinations.
International Shipping: Global fulfillment from our nearest warehouse with tracking provided upon dispatch.
Return & Guarantee Policy
Return Policy: Defective or damaged item? Return it within 30 days for a full refund. Customer pays return shipping.
Technical Support: Need help with compatibility or setup? Contact our US-based FPV experts at (951) 592-5658 for free assistance.
