The Gemfan 51377 is an upgraded tri-blade racing propeller engineered to meet the demands of modern FPV competition. With a 3-inch pitch and a 129.7 mm diameter, it is crafted from durable PC material and weighs 4.5 g, offering a balanced blend of thrust, speed, and impact resistance. The blade geometry has been optimized to pair effectively with new-generation racing motors—especially 2207 2100KV setups—ensuring responsive acceleration and stable power delivery throughout the race. Reinforced structural areas enhance durability, allowing pilots to continue flying even after minor collisions.

Key Features:

• Updated tri-blade design tailored for competitive racing

• Optimized 3-inch pitch for improved throttle stability

• Reinforced weak points to withstand light crashes

• Durable PC construction for consistent and reliable performance

• Smooth power output suitable for high-speed track flying

Specifications:

• Type：Gemfan 51377

• Material：PC

• Pitch：3inch

• Prop Disk Diameter ：129.7mm

• Center Thickness：6.1mm

• Center Hole Inner diameter：5mm

• Max Prop Width：14.7mm

• Weight：4.5g

• Recommended Motor：2207 2100kv

Applications:

• FPV racing and pre-race training

• High-speed track layouts

• Builds requiring durability and stable response

• Pilots seeking reliable performance under competitive pressure

Package:

2 × GEMFAN 51377 MCK ReV3 PC 3 Blade Propeller CW

2 × GEMFAN 51377 MCK ReV3 PC 3 Blade Propeller CCW