This rule to follow will allow you to prepare your first flight as well as possible!
In addition to the center of gravity, the deflection of the control surfaces must also be correct for the model to fly well. A wrong setting can quickly be synonymous with a crash...
This uncertainty can be avoided during the first flight. The ruler measures with prism or mandrel on:
* highly curved profiles (no measurement error due to measuring mandrel)
* T-tail, cross tail
* V-tail (by rotating prisms)
The following useful measures are also possible:
* Adjustment of rotor blades on helicopters
* Engine camber measurement for internal combustion and electric drives
* Checking the inclination or warping of the wings
* Positioning of the model at the start (position of the wheels)