"Kai Glaesner" wrote in message . com...
Hello,

reading the "no RPM drop..." thread gave rise to a question: what is the
benefit (if there is any) of the "dual magneto" (two magnetos in a single
housing) installation? Should these kind of installation be preferred, or
avoided (if there is a choice ;-)?


They should be avoided. They have a nasty problem of falling off.
Mooneys and Arrows have had this problem. Most have since been change
over to two different mags. I think the benefits were easier
installation and less area to pressurize (for those mags that are
pressurized).

-Robert