Kevin Chandler wrote:
In most twins. However there are some that have no critical engine and
some that have both engines as critical.



I know that some planes have counter-rotating engines for the right side;
however, I never knew that planes existed with both engines critical. Are
you saying the counter rotating goes on the left and a normal engine on the
right? Is so, why???? What benefit would there be in that?

Just curious and learning something new everyday.



Any engine that turns its prop outboard is a critical engine. The P38
is an example of an airplane that has both engines turning outboard.
They did this for better manuverability.