#636RS 85 deg HD Pneumatic Main Retracts Robostrut Ready
85 degree Heavy Duty Pneumatic Main Retracts RoboStrut Ready Mechanisms Only (pair)
These 635 series heavy duty custom pneumatic retracts are designed for specific R/C aircraft weighing up to 32 lbs.. These retracts are constructed the same as the standard 630 series retracts with heat treated aluminum alloy frames and trunions, these gear will accommodate a 1/2" diameter or a custom made 5/8” diameter 4130 chrome moly steel tubular RoboStruts. They offer long dependable service for large aircraft flying off grass or paved runways. Powered by a 5/8” bore triple sealed Robart air cylinder, all of these units feature positive up and down locks.
(Robart Air Control Kit Required to operate Sold Separately)