The Century 1/5th scale Robinson 22HP is ideal for the advanced novice and intermediate helicopter flier. We have designed the 10.6:1 gear ratio especially with the O.S.Max 50SX-H high performance engine in mind to provide a low speed main rotor RPM in the 1200-1450 range. Optimal performance can be achieved using 660mm semi symmetrical rotor blades (sold separately) that generate high lift, very low drag and smooth scale blade noise. The R22HP will be available as a modular R/C scale model that follows the high standards we have set with all our scale helicopters. Much of the Raven eCCPM derived mechanics provides the precision flight control comes assembled in separate modules which include the rotor head assembly, main frames and tail boom/drive system. Top quality epoxy fiberglass surrounds our mechanics with an elevated scale tail boom and tail fin set. Authentic wire landing gear completes the awesome scale appearance. Truly a model that again sets the standard for quality scale models in the R/C helicopter community.