S12 Service Bulletin Centrifugal Clutch

P062-980087 | 11/10/2025

Stemme has developed an improved version of the centrifugal clutch used in the drive train system for ROTAX powered STEMME sailplanes. The new clutch is an alternative to the following components:

Stemme S10-VT: Centrifugal clutch P/N 11AK and P/N 12AK
Stemme S12: Centrifugal clutch P/N 12AK.