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J1S Designs "Cyclone" Carbon Fiber Flybarless Main Blade Set (695mm)
Tim Jones has developed a unique, optimized airfoil design that elevates R/C helicopter blade technology to the next level. J1S Designs Cyclone blades feature an aerodynamically optimized "tapered airfoil" that allows the CG point to be configured in a way that provides fast flight stability, without sacrificing response, or "crispness" around center. The tip shape is unique and allows large cyclic inputs even at the highest forward flight speeds, eliminating the "flutter" or sluggishness that is common with heavy flybarless blades that can stress servos and reduce cyclic rates. This also allows the power system to work more efficiently and lets the blades track with one another much better, even under the most extreme combinations of collective and cyclic pitch.
J1S Designs Cyclone blades won’t make you fly like the Beast, but will deliver the confidence, stability, response and efficiency that will make you feel like one.
Traditional airfoil designs force pilots to choose between crisp response around center or smooth high speed tracking in fast flight. Using high powered CAD software and the assistance of some very intelligent aeronautical engineers, J1S Designs Cyclone blades stray from the conventional straight-line "continuous airfoil" design, and feature a "tapered airfoil" design that provides stability in fast flight, without sacrificing response, or "crispness" around center. This design has been optimized for the head speeds used on modern 700 class 3D helicopters, and allows the blade to move through the air with less drag, less turbulence and improved predictability.
Another aspect of blade design that is often over looked or selected purely on cosmetics is the shape of the tip. Tip shape is incredibly important and has a huge affect on the lift and overall efficiency that the blade can deliver. J1S Designs Cyclone blades feature a unique tapered, swept tip design that does two things; first, the swept tip deflects turbulent air coming off the blade tip at an angle away from the disc, and away from the next advancing blade. This allows the blade to slice through the air without having to fight the turbulent air generated by the retreating blade, and produces a quiet, more efficient blade, even under high cyclic pitch conditions! Second, it reduces the "mach number" at the tip, effectively reducing airspeed and drag without sacrificing lift. This means that even though the RPM and blade length haven't changed, the airspeed at the tip has been reduced. This reduces the stress on the power system, helping to reduce operating temperatures and increase flight times! This also gives you the option to increase your head speed for more power and improved response without sacrificing the efficiency or flight time your current setup delivers!
The pivot point of the blade affects the lead/lag that the blade experiences during flight. As the blade rotates through the air it creates drag, causing the blade to pivot rearward, or "lag" in the blade grip. The location of the pivot point is critical in allowing the blade to fly at its "aerodynamic center". J1S Designs Cyclone blades feature an optimized pivot point that helps to balance the blade dynamically, resulting in blade with superior aerodynamics, and improved in-flight stability.
- Designed and developed by Tim Jones
- Uses rotary wing technology developed in the UAV/Defense industries, as well as concepts found in full scale helicopters.
- Tapered airfoil reduces drag & increases lift. Superior aerodynamics allows for a CG more toward the root for improved response without sacrificing high speed stability.
- Swept tip reduces effective tip speed, turbulent air & increases overall efficiency.
- Optimized lead - lag allows the blade to fly at aerodynamic center for reduced noise and increased efficiency
This product was added to our catalog on May 8, 2013.
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