Which are safer: piston twins or singles?
I don't have the stats, but would be interested to hear people's opinions.
My logic works like this:
Most piston twins are marginal with one engine out, requiring excellent technique to survive, particularly at critical phases of flight. Since they have two engines, they are therefore twice as likely to have an engine failure and are therefore less safe. This is especially true when flying on ferry flights, such as transatlantic, at or above max gross, because some of them can't keep flying on one engine at all at such weights. They're therefore twice as likely to have to ditch due to engine failure. Alternatively, if they can keep flying, the drag goes up, airspeed goes down and they end up without enough fuel to make land.
And the above does not even take into account the increased complexity of these aircraft and therefore the drain on pilot attention etc. etc.
Or, to coin a phrase: "When the first engine fails in a twin-engined aircraft, the second engine takes you to where the crash is going to be."
QDM