Why are geared automatic transmission box dominantly planetary, whereas manual transmission use no planetary gearbox at all? What's the cons using linear gearbox in AT and planetary gear box in MT? -
![Dynamics 16-77| The planetary gear system is used in an automatic transmission for an automobile. - YouTube Dynamics 16-77| The planetary gear system is used in an automatic transmission for an automobile. - YouTube](https://i.ytimg.com/vi/9Ar-nnI4jRk/maxresdefault.jpg)
Dynamics 16-77| The planetary gear system is used in an automatic transmission for an automobile. - YouTube
![Automatic transmissions use planetary gear system to operate. Description from mekanizmalar.com. I searched fo… | Mechanical projects, Gears, Mechanical engineering Automatic transmissions use planetary gear system to operate. Description from mekanizmalar.com. I searched fo… | Mechanical projects, Gears, Mechanical engineering](https://i.pinimg.com/564x/92/cb/8c/92cb8ce4a93dd255d8d0bff69fd9dd8d.jpg)