CH47 Planetary Gear Concepts

   
Planetary Gears   Multiple Disc Clutch   Clutch Pack Clearance
     
Sprags   Compound Planetary Gearsets    
AT07   AT23   AT08
Simple Planetary Gearset   Servos & Clutches   Simpson Gearset (Common SunGear)
AT33   AT13   AT14
Ravigneaux Gearset (Compound Tandem)   Lepelletier DriveTrain (6-Speed)   Lepelletier DriveTrain (8-Speed)