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How To Configure A Trim Tab System For Your Boat

1a.
1b.
2.
3.
4.
5a.
5b.
Choose the correct size trim tab plate
Or choose a tab plate size using general guideline chart
Choose the type and style of trim tab plate
Choose the control switch to operate the trim tab system
Choose the type and size actuator
Choose a standard trim tab kit with control switch
Choose a standard trim tab kit without control switch
1a) Choose the correct size trim tab plate...

To improve or correct the following conditions:

  • Trimming boat port or starboard to correct for weight imbalance
  • Leveling the boat to improve ride
  • Improve fuel efficiency and speed
  • Eliminate porpoising
  • Faster planing

Tab Sizing Chart for 1 Actuator per Tab

To improve or correct the following conditions:

  • Bow is riding extremely high at cruising speeds
  • Boat repowered with larger engines
  • Heavy equipment has been added to boat
  • Typical "cruising" speeds above 35 knots
  • Applies to conditions listed for 1 actuator per tab chart

Tab Sizing Chart for 2 Actuators per Tab

1b) ...or choose tab plate size using general guideline chart
Model Number Stainless Steel Gauge Tab Size Typical Boat Length
Inches cm Feet Meters
T9X9 12 9x9 23x23 14'-19' 4.0m-6.0m
T9X12 12 9x12 23x30 16'-25' 5.0m-7.5m
T9X18 12 9x18 23x46 21'-30' 6.5m-9.0m
T9X24 12 9x24 23x61 24'-37' 7.0m-11.0m
T9X30 12 9x30 23x76 30'-45' 9.0m-13.5m
T9X36 12 9x36 23x91 35'-54' 10.5m-16.5m
T12X9 12 12x9 30x23 18'-29' 5.5m-8.5m
T12X12 12 12x12 30x30 18'-32' 5.5m-9.5m
T12X18 12 12x18 30x46 20'-40' 6.0m-12.0m
T12X24 12 12x24 30x61 28'-48' 8.5m-14.5m
T12X30 12 12x30 30x76 30'-55' 9.0m-16.5m
T12X36 12 12x36 30x91 34'-60' 10.0m-18.0m
T12x42 12 12x42 30x107 50'-70' 15.0m-21.0m
T12X48 12 12x48 30x122 60'+ 18.0m+
2) Choose The Type and Style of Trim Tab Plate

All parts marked with an * are available in a standard trim tab kit. All other items are available as individual parts. Contact Lectrotab for custom kits.

standard trim tab aluminum alloy trim tab

Standard Flat Stainless Steel Trim Tabs

* Available in standard trim tab kit.

Aluminum Alloy Trim Tabs

* Available in aluminum alloy trim tab kit.

heavy duty trim tab custom trim tabs

Heavy Duty Trim Tabs

Bent edges for added strength (recommended for boat speeds in excess of 40 knots (45mph/72kph)

Custom Trim Tabs

dual actuator trim tabs heavy duty racing trim tabs

Dual Actuator Trim Tabs

(2 actuators per tab)

Heavy Duty Racing Trim Tabs

3) Choose The Control Switch To Operate The Trim Tab System
rocker switch
* Rocker Switch

Rocker Switch Spec Sheet

(SAF-SC shown). Available in standard kits.
oval control
* Oval Control

Oval Control Spec Sheet

(SETR-61 shown) with LED tab position indicators and auto tab retraction and recalibration. Available in standard kits.
ALC control
Automatic Leveling Control

View Automatic Leveling Control Spec Sheet

Download Automatic Leveling Control Spec Sheet

Automatic leveling control with LED tab position indicators and automatic tab retraction. Automatically controls roll and pitch. Available in standard kits.
MLC-1 Manual Leveling Control
MLC-1 Manual Leveling Control

View MLC-1 Manual Leveling Control Spec Sheet

Download MLC-1 Manual Leveling Control Spec Sheet

4) Choose The Type And Size Actuator
standard actuator
* Standard Actuator

Standard Actuator Spec Sheet

Available in standard kits.
heavy duty actuator
Heavy Duty Actuator

Heavy Duty Actuator Spec Sheet

short actuator
Short Actuator

Short Actuator Spec Sheet

5a) Standard Trim Tab Kit With Control Switch
Contact Lectrotab for non-standard or custom kit availability.
XKA Kits with Stainless Steel Tabs Contain:

2 - Actuators with 23' (7m) cable
2 - Flat Stainless Steel Tabs, 12 Gauge
1 - Control Switch (Rocker, Oval, Manual or Auto Level)
Standard Stainless Steel Trim Tab Kit Spec Sheet
xka kits with stainless steel tabs
XKA Kits with Aluminum Alloy Tabs Contain:

2 - Actuators with 23' (7m) cable
2 - Aluminum Alloy Trim Tabs
1 - Control Switch (Rocker, Oval, Manual or Auto Level)
Aluminum Alloy Trim Tab Kit Spec Sheet
xka kits with aluminum alloy tabs
5b) Standard Trim Tab Kit (Control Switch Not Included)
Contact Lectrotab for non-standard or custom kit availability.
XK Kits with Stainless Steel Tabs Contain:

2 - Actuators with 23' (7m) cable
2 - Flat Stainless Steel Tabs, 12 Gauge
(Control switch not included)
Standard Stainless Steel Trim Tab Kit (without control switch) Spec Sheet
xk kits with stainless steel tabs
XK Kits with Aluminum Alloy Tabs Contain:

2 - Actuators with 23' (7m) cable
2 - Aluminum Alloy Trim Tabs
(Control switch not included)
Aluminum Alloy Trim Tab Kit (without control switch) Spec Sheet
xk kits with aluminum alloy tabs