Trim tab kit Medium (120–140 kt)
The trim-tab actuation kit for the iLevil AP autopilot, in the Medium size — servo and tab for aircraft cruising at 120 to 140 kt.
- The servo and trim tab that fly the aircraft for the iLevil AP — sized for 120 to 140 kt cruise
- Riveted, screwed or bonded to the surface, as your airframe allows
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Details.
The iLevil AP moves a trim tab, not the control surface itself. The tab does the flying: a small servo deflects it, the airflow does the rest, and the aircraft follows — which is how a light-sport or Experimental aircraft gets an autopilot without heavy servos, long linkages or a certified installation.
Sized by cruise speed
The faster the aircraft, the smaller the tab that is needed to move the surface. The Medium kit is for aircraft cruising at 120 to 140 kt. Small covers 140 to 180, Large 80 to 120 and Jumbo 50 to 80 — choose by the speed you actually cruise at, not the speed on the brochure.
What is in the kit
The servo and the trim tab, 12 inches long with a 2 inch moving section, at 150 g for the kit. Riveted, screwed or bonded to the surface with strong double-sided adhesive, as your airframe allows.
Requires the iLevil AP autopilot.
Questions pilots ask.
Which size do I need?
Choose by the speed you actually cruise at: Small 140–180 kt, Medium 120–140 kt, Large 80–120 kt, Jumbo 50–80 kt. The faster the aircraft, the smaller the tab.


