If a model is to fly satisfactorily its Centre of Gravity and its longitudinal dihedral must both be correct. Inaccurate incidence settings can lead to innumerable unnecessary test-flights or - in the worst case - to an immediate crash.

With the Incidence Gauge you can avoid this uncertainty on the first flight. The prism or measuring mandrel can be used to check the incidence of:

• Severely cambered airfoils (mandrel avoids measurement error)
• T-tail, cross-tail
• V-tail (swivelling prisms)

The following useful measurements are also possible:

• rotor blade pitch (model helicopters)
• motor downthrust (glow and electric motors)
• wing washout (or warps)
• take-off angle of attack (wheel position)
• simple to assemble and use

An essential tool for any serious aeromodeller.