Sunday, September 22, 2019

Cotal transmission

 Featuring a cute little gearshift mechanism, the French-designed Cotal transmission consisted of a epicyclic gear system activated by electromagnetic clutches. Maybe it could be better described as a semi-automatic system, as there was still a foot operated clutch. 
 During the 1930s, they were offered as an expensive option for expensive cars, Delage, Delahaye, Salmson, Bugatti among them.  As far as I can tell, North American manufacturers never used the system. A big part of the attraction must have been the avoiding of dealing with the non synchro gear change.  
Post-war, they could be had on some Peugeot, (French) Ford SFA, and Citroën Traction models but they were also used on trucks, buses and even railcars.
More here, Youtube

thanks, JP!


VectorWarbirds said...

I believe this is the correct shifting style for this type of mechanism..........


Mister G said...

Perfect!!!! :-)