Lee Air > Capabilities > Systems Engineering
Partnerships and co-designed Systems are a specialty of Lee Air's Engineering culture. Value streams are realized by combining the specialized skill sets of AC & DC Motor, Digital & Analog Controls, Power Screw & Rotary Actuation Engineers. Development coalitions have repeatedly proven the efficiency of cooperative system design and reduced time to market. Professional experience includes:
- Landing Gear – Retraction & Brakes
- Flight Controls – Primary, Trims, Flaps & Load Alleviation
- ECS – Vapor Cycle
- Utility – Doors & Valves
Electromechanical Brake
- Used on large UAV (+3000 lb Max Gross Wt)
- 28Vdc BLDC, High response rate, ~ 11 Hz
- Closed loop circuit (Pressure, Tach Gen Pos) – analog
- Master Cylinder, Brake Caliper
Electromechanical Gear Retraction
- Used on Large UAV & Part 23 VLJ Aircraft
- Main & Nose Landing Gear Partnership
- Brushless DC Motor/Gearbox with Brake
- Internal Controller
- Self-rigging
- Emergency Free Fall
Compressor Drive
- Used on Part 23 Aircraft
- Vapor Cycle System Partnership
- 28Vdc BLDC, 3-5 hp
- Controller – 135 Amp capable, 112 Amp Certified
- Level E Software for Monitor
- Gearbox or Pulley Configuration
High Speed Actuator
- Used on Part 23 Aircraft
- Load Alleviation System Partnership
- Loads under 500 lbs
- Redundant LVDT Monitor & Control
- 28Vdc BLDC, response rate, ~12 Hz
- Closed loop circuit (Accel, Tach Gen Pos) – analog
- May use software for Bit or Monitor
Flaps
- Used on large UAV & Part 23 Aircraft
- Fowler or Hinged type Flaps
- Torque tube, Flex Shaft, and Fly-by-Wire configurations
- Electromechanical Actuation
- Position/Symmetry Indication
- Flap Controller/DC Motor-Gearbox
- Cockpit Control Handle & Harnesses
External Utility Door
- Used on Part 23 Aircraft & UAVs
- Cloaking Door Partnership
- Rotary Actuator with Integrated Controls
- Cloaking Door Assembly
- Door Guide Rails
- Door Guide Compression Rollers
