Gemfan 8045 Carbon Fiber Nylon Propellers - 8x4.5 Inch CW+CCW Pair for Multi-Axis Drones

Specifications

• Diameter: 8.0 Inch (203.2mm)

• Pitch: 4.5 Inch

• Rotation: 1 x Clockwise (CW) + 1 x Counter-Clockwise (CCW)

• Material: Carbon Fiber Reinforced Nylon (Black)

• Centre Hole Diameter: 6.0mm / 9.5mm (Universal hub)

• Centre Thickness: ~9.7mm

• Weight: ~14g per pair

• Recommended Motors: 800KV - 1100KV (Up to 1400KV for light builds)

Key Applications & Projects

• Mid-Sized Quadcopters: The primary choice for F450 and S500 series frames.

• Fixed-Wing Planes: High-torque pulling power for 800mm-1200mm wingspan models.

• Agricultural/Industrial Micro-Drones: Provides the reliable lift needed for small payload delivery or inspection sensors.

Unlock New Capabilities (Project Evolution)

• Feature Upgrade: By switching from standard ABS to Carbon Nylon, pilots often report an increase in flight time of up to 2 minutes due to improved aerodynamic efficiency.

• Effort Level: Beginner. Includes a full set of adapter rings to fit virtually any motor shaft (3mm to 8mm).

Package Includes:

• 1 x Gemfan 8045 Clockwise (CW) Propeller

• 1 x Gemfan 8045 Counter-Clockwise (CCW) Propeller

• 2 x Sets of Adapter Rings (Diameters: 3mm, 3.17mm, 4mm, 5mm, 6mm, 8mm)

FREQUENTLY ASKED QUESTIONS (FAQ)

• What does "8045" mean? The first two digits (80) indicate an 8.0-inch diameter, and the last two (45) indicate a 4.5-inch pitch.
• Are these better than standard plastic props? Yes, the carbon fiber reinforcement makes them stiffer, leading to less vibration and better efficiency.
• Will these fit my 2212 1000KV motor? Yes, this is a very common pairing for F450 drone kits.
• Can I use these on a 1400KV motor? Yes, they are compatible, but check your motor's temperature as 8-inch props on 1400KV can draw high current.
• Do I need to balance them? While factory-balanced, we always recommend a quick check on a prop balancer for the smoothest possible video.
• How do I tell CW from CCW? CW propellers usually have an "R" or "P" suffix (like 8045R) and rotate right-to-left to push air down.
• What if my motor shaft is 5mm? Simply use the included 5mm adapter ring to ensure a centered, snug fit.
• Are they durable for crashes? Carbon nylon is much tougher than standard plastic, but it is less flexible than pure nylon, so it may snap under extreme impact.
• What is the maximum recommended wheelbase? They are best suited for frames between 300mm and 550mm.
• Do they reduce flight noise? Yes, the stiffness and aerodynamic shape help reduce the "whine" compared to thinner props.
• Can I use these for a pusher plane? Yes, just ensure the propeller orientation and motor direction match for backward thrust.
• What is the center hole diameter? The raw hole is 6mm, but it accommodates up to 9.5mm hub washers.
• Will these fit on a DJI Phantom? No, DJI uses proprietary "self-tightening" hubs; these are for standard threaded motor shafts.
• How many props are in a pack? This SKU is for one pair (one CW and one CCW).
• Can I ream the center hole? Yes, they can be reamed to 1/4" or 6mm if required for larger shafts.
• Are they suitable for FPV racing? They are excellent for larger 7-8 inch racing/freestyle quads that prioritize stability.
• What is the pitch angle? The 4.5-inch pitch equates to a roughly 15-degree blade angle at the ends.
• Can I use them with a 2200KV motor? Not recommended for 8-inch props; 2200KV motors usually require 5-6 inch propellers to avoid overheating.
• What color are they? These are matte black due to the carbon fiber content.
• Is there a warranty? Check with your specific retailer; many offer a standard manufacturing defect warranty.