This occurred to a just restored RV-4 during the first test flight, in downwind.
Not a big flying deal but it's interesting taking a look inside the sensor.
It broke in three pieces.
__________________ Luke
Trento, northern Italy
RV-8 QuickBuild, Catto 3 blade Prop, YO-360-A1A. Status : I-LUKE is Flying - 400 h. and counting http://www.rv8.it
a broken RPM Sensor
Linear Mode
