Ducted Fan 50mm,Ducted Fan with RC Brushless Motor RC Ducted Fan for 3300/4000/4600/5000KV Motor for Most RC Plane(Positive oar)

Ducted fan---Fully injection‑molded compound, high rigidity and hardness, greatly reduces damage rate., Inline fan---Perfect dynamic balance of the blades and good coordination between the fan ducts., Stablize---Ducted fan More stable, has been tested for good aerodynamics, and has excellent power., Widely applicable---Compatible for QF2611‑3300/4000/4600/5000KV brushless motor, fit for most RC plane., Excellent material---Ducted fan made of high quality material, which makes it durable, sturdy and has a long service life.