Synergy R/C Helicopters Synergy 516 (Black Blue Yellow)

* All-metal and 2mm carbon fiber construction * CNC machined 6061-T6 aluminum and Delrin components * 140mm full head width for optimal disk loading * Extra wide head block for quick cyclic response and high stability * Capable of 2800+ RPM head speed for maximum performance * Machined Delrin helical main drive for quiet, efficient power transfer * 6mm width belt-driven tail with spring tension system * 10mm main shaft with triple support bearings * 8mm head axle with pivot rocker and solid dampers * 6mm tail shaft with HD tail hub and HD grips * 24mm self-supporting boom (no boom supports needed) * Turnbuckle linkages for quick/precise adjustments * Adjustable C.G. battery tray with quick locking system