1. WIND DIRECTION
WINDY TRIM
CALM TRIM
ON WINDY DAY

2. JUST A DIFFERENT PERSPECTIVE
STAB VS WING TILT
JUST A DIFFERENT PERSPECTIVE
LOOKING FORWARD
LOOKING FORWARD - STAB TILT
INDUCES MODEL TO RIGHT TURN
LOOKING FORWARD – MODEL TENDS TO
SETTLE ONTO WING AND VERTICAL CG COMPONENT
CREATES A COUPLE TO BRING THE FUSELAGE
UNDER THE WING CG. WING TILT DOES CREATE THE
EFFECT OF STAB TILT WITHOUT AFFECTING THE INCIDENCE THOUGH.
NOTE: This works on light models a lot better. For heavier models, since most forces tend to act around the CG or aero CG, the tail boom moment has greater effect.
COMPONENT OF LIFT
STAB LIFT VECTOR
PERP TO STAB
MOMENT ARM

3. TE CONTACT POINT
LEADING EDGE
SHIMMING STAB TILT AS SHOWN CAUSES LE TO “LIFT” CAUSING INCIDENCE CHANGE
IF STAB PLATFORM IS TIPPED,
THE STAB INCIDENCE
IS NOT EFFECTED
3 POINTS DEFINE A PLANE AND
MANAGING THAT PLANE IS AN
EFFECTIVE WAY TO KEEP TRIM
ADJUSTMENTS ON STAB
TILT SHIM