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This builder’s kit of a high-performance RC hand launch glider is a perfect project for a modeller wanting to build a really good for sporty and “Sunday“ flying. The well-thought design with CNC-cut interlocking parts fitting together like pieces of a puzzle makes the building a breeze. The ribs and riblets are supplied with jig tabs allowing building the wing (featuring an undercambered profile) directly on a flat working surface - and all that with a built-in washout!
The front part of the fuselage is a simple „box“ of balsa sides, top and bottom sheets and plywood formers and braces. The servo and battery compartment are located in the front part under the removable hatch with a magnetic lock. The tail boom is a carbon tube with liteply pylon for the horizontal tailplane. The tow hook for the bungee launch is also included in the kit.
The one-piece wing sports the YA0801 wing section (“tailored” to needs of RC hand launch gliders) is of, now we can say classic, design with CNC cut balsa ribs, carbon tube main spar and beech dowel leading edge for high strength at very low weight. The wing is secured to the fuselage with a plastic bolt. The discus launch pin can be installed on the left wing tip (for right-handed pilots) or to the right wing tip (for left-handed pilots).
The empennage is made of CNC-cut balsa sheets with balsa and carbon reinforcements. The elevator and rudder are controlled by servos located in the fuselage with piano wire push rods running through the tail boom.
You can use an iron-on film for covering - lightweight Oralight® or similar materials are preferred.
You will need at least two-channel radio to control your CUMUL DLG. Good 6g micro servos (0.7–0.9 kg.cm torque) are required for the elevator and rudder; the servo tray supplied in the kit is tailored to the KAVAN GO-6MG servos.
1S 3.7V 450–500 mAh LiPo battery would make a great receiver battery.
The kit contents: CNC cut balsa and liteply/plywood parts, carbon tubes for wing main spars, carbon tail boom, accessories set, sheet of stickers, full-size building plan, instruction manual.
If the Manual doesn't show you can click here to open the document in a new window.
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