wrote in message
Any comments about the best training aircraft for these purpose ?
(PA34 Seneca, Beech Duchess, PA44 Seminole, Diamond DA42,

All of them will teach you the basics. The DA42 has diesel engines with
electronic controls. It will teach you the basics, but the procedures for
securing the engines won't carry over to piston twins.

There are big differences concerning the rating requirements.
Some flight schools offer a multi training of 6 hours, other 25 hours
for the rating.

US regs don't require a minimum number of hours. Each schools' curriculum is
based on experience and insurance requirements. Having a high-performance
sign-off will help expedite the course.

D.