KEEP-450 SPORT 3d rc helicopter

KEEP 450 SPORT 3D rc helicopter kit Features: 1 .All parts are compatible with ALIGN 450sport kit 2. The precision of bearing hole is±0.015mm. Use imported high quality bearing for the key parts,and national standard bearing for other parts. Never use copper ring or used-bearing make sure no possibility of interstice. 3 .All the Metal parts are of AL6061 ..Pure Carbon fiber side plate and bottom plate with the thickness of 1.2MM 4 .All screws are 12.9 Class high-strength alloy screws 5. All metal parts are CNC machined and the Tolerance zone is strictly controlled in the scope of permission 6. All the ball heads, ball links, rod links and flybar rods are of imported high quality 304 stainless steel .Never be rusty to impact the performance of kits. 7 .Main assembly parts ,like main rotor head assembly, body assembly and tail rotor assembly, have been well assembled , adjusted the interstice parts to right state and been pasted well by glue. Users can completed the kit easily. In addition, spare screws and ball heads are already provided. 8. Like ALIGN 450 metal parts, KEEP 450 metal parts are also two-color Anodic oxidation finished. 9.Two kinds different specification of Motor mounts are provided to meet the assemble needs of any type 450 rc helicopter motor. 10. KEEP 450 rc helicopter kit have been pass the test of 4 hours’ non-stop antifatigue, and no structure abnormal happens. 11.without canopy and mainblade Length:643mm Height:230mm Main rotor diameter:715mm Tail rotor diameter:150mm Motor drive gear:14T Main drive gear:150T Autorotation tail drive gear:106T Tail drive gear:25T Drive gear ratio:1:10.7:4.24 Weighe(with out power system):445g Flying Weight :Approx.770g