Tactair Landing GearDoor Control Valves are based on proven design principles and operate daily on a variety of regional, business and military aircraft. These solenoid operated, spool and sleeve valves can be designed and sized for any architecture.FeaturesTactair Landing GearDoor Control valves feature a 4-Way, 3-Position design which has proven reliability and robustness. One valve can control a landing gear system or multiple valves can be incorporated into a system for separate nose landing gear, main landing gear, and landing gear door control. All Tactair spool and sleeve valves feature a hardened spool and sleeve assembly which is highly resistant to wear and provides longevity. Solenoids can be either single or dual coil design and all incorporate reverse-recovery diodes for electrical protection.