Mxsmanic wrote:
Dale writes:


Perhaps it's because if you screw the pooch on those "few procedures for
the failure of an engine" you will be dead.


But a lot of procedures can result in death if they are improperly
executed. It's not clear to me what the key distinction of multiple
engines might be that would justify a separate certificate.

That distinction has been written in blood over the decades, as have
most of the regulations in aviation... they are the result of bad outcomes.