It absolutely was common within the early 20th century for its simplicity of use as compared to entirely handbook gearboxes of that time.  Compound Planetary Gearset This automatic transmission makes use of a list of gears, called a compound planetary gearset, that looks like one planetary gearset but in fact https://gearbox-auto31863.topbloghub.com/40131959/the-ultimate-guide-to-gearbox-auto