Racekraft 5051 Sky Star Triblade

These propellers are the first truly optimized for racing sports. While the name is 5051, the 50 indicating a 5" propeller, the 51 does not mean the pitch on this propeller is 5.1" It seems tha the true pitch is actually closer to 4.7" rather than 5.1
With this unique design the blade tips rises nearly an inch above the prop hub. According to "Propwashed" article, "this is due to the massive “bite” of the first inch of the prop – necessary because airfoil spins proportionally slower the closer to the hub you get. Radical designs like this mean you are getting more thrust across the entire prop instead of most of your thrust from just the tips. The RaceKraft 5051 also features an upturned wingtip device that attempts to increase the efficiency of the prop by reducing prop vortices. Such a device might also have the added benefit of reducing propwash oscillations – but it is hard to verify either of these claims without access to a wind tunnel."
Package content:
2 x 5051 CW, 2x 5051 CCW V2 tri-blade sky star colored propellers