These blades do have an asymmetrical airfoil and produce lift an angle of attack of 0 degree, enabling the pilot to decrease the flight rpm considerably, without losing any climb performances. The additional weight of the fuselage, lighting system and other mounting parts can be easily compensated for. The very low flow line combined with the more to the tip of the blade positioned center of gravity prove a very stable straight and level flight and optimized performance. These attributes are supporting the requirements of modern FBL Systems, for which these blades are optimized.
We call these our B surface blades. During manufacture occasionally the logo and graphical design finish is not as 100% perfect but in no way does that slight visual imperfection affect their use in anyway
And we standby every single blade we sell eac. Needless to say, all blades are well balanced to function as one unit.
|root:||Bohrunbolt hole:||weight/ per blade:||width:||max. rpm.:||forward:||profile:||direction of rod:|
|12mm||5mm/4mm with spacer||approx. 215g||79mm||2100||2-3 mm||Asymmetrical||clockwise|