know the DC3 single engine performance is legendary,
It ain't that good, I'm afraid....and yes,I've flown one a fair bit.
The DC-3 (or, if you prefer, C-47) is not a transport category airplane and does
not have CAR4B required performance.
In addition, 5606 (type fluid) hydraulic pressure holds the gear retracted...no hydraulic pressure available, the landing gear free falls into the down (but not locked) position.
Performance in this case with one engine inop (even with prop feathered)...very poor.
I'm sure any DC3 is not only capable of flying on one engine, but with a light load could probably take off with one - in fact if memory serves correctly, this was once demonstrated.
Negative, one engine shut down just after takeoff ex-INW many years ago on a demo flight from INW-ABQ....very light pax load.
IF you had flown the type, you would know.