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Lenco and Bennett Trim Tab Owners...
Can you automatically level your boat?

Upgrade your trim tab control to automatically level your boat...

  • Automatically adjusts existing trim tabs to maintain a level boat
  • Eliminates the need for a power module box (ALC-1 only)
  • Improves fuel efficiency
  • Completely sealed and waterproof
  • Microprocessor based automatic leveling trim tab control with LED tab position indicators
  • Controls roll and pitch automatically
  • Internal GPS - no GPS antenna or network required
  • Automatically adapts to varying sea conditions
  • Completely sealed and waterproof (IP68)
  • UV protected - will not deteriorate in sunlight
  • Prevents automatic corrections while turning
  • Designed for planing and semi displacement hulls larger than 20ft
  • Maintains correct attitude when running stepped hulls
  • Actuators connect directly to ALC-1 display panel (no external power module box required)
  • Automatically dims LED tab position indicators in darkness and brightens in sunlight
  • Automatically retracts trim tabs when boat is off plane or using optional key switch connection
  • Dual station operation available (ALC-1D and ALC-2D does require external power module)
  • Operates on 10 to 30 Volts DC
  • 2 Year Warranty
  • CE Approved (Compliance with EMC regulations)
FEATURES
SPECIFICATIONS
Model Number Display Color Number of Stations Actuators per tab plate Overall Width Overall Height / Thickness Mounting Hole Cutout (Diameter) DC Voltage Fuse Size Power Input (1 Actuator per Tab) Fuse Size Power Input (2 Actuators per Tab)
ALC-1 Black 1 1 3.15"/80mm 3.0"/77mm-437"/11mm 2"/50mm 12/24 12vdc = 15 amp
24 vdc = 10 amp
N/A
ALC-2D Black 1 or 2 2 3.15"/80mm 3.0"/77mm-437"/11mm 2"/50mm 12/24 N/A 12vdc = 30 amp
24 vdc = 20 amp
ALC-1D Black 1 or 2 1 3.15"/80mm 3.0"/77mm-437"/11mm 2"/50mm 12/24 12vdc = 15 amp
24 vdc = 10 amp
N/A
ALC-2S Black 2nd station display N/A 3.15"/80mm 3.0"/77mm-437"/11mm 2"/50mm 12/24 N/A N/A
AUTO LEVELING CONTROL WIRING - Bennett and Lenco Systems
AUTO LEVELING CONTROL (ALC) PROGRAMMING
  Program Mode Sequence  
Function Enter Button Hold Adjustment Store Memory
Calibration BOW UP + BOW DOWN 12s Begin Calibration N/A
Attitude Set N/A N/A Adjust tabs to best attitude Press AUTO 4s
Gain Adjust RIGHT + LEFT 4s BOW UP and BOW DOWN RIGHT + LEFT 4s
  • Press AUTO to enter automatic leveling
  • Press AUTO mode again to enter manual mode so tabs may be adjusted manually
  • The ALC incorporates an "Adaptive system" to maintain optimum running attitude in varying sea conditions
  • Reducing speeds below planing speed the ALC will not attempt to control attitude
  • The ALC automatically starts correcting attitude during acceleration
ADDITIONAL OPERATION FEATURES