Some time ago now, but I do remember ferrying a Wessex on just one gnome engine. A quick <30 min sortie to recover the downbird to a base location as the engine repair/change could not be effected on site. I think it was a min crew transit as well - probably the only time I flew the fine girl on my own. It was no drama but such a reasoned decision/solution would be frowned on by today's safety/risk culture gurus. Come to think of it, I ended up doing the same several years later with an early mark Lynx. Nowhere near as comfortable - single crew again but had to remove everything that we could including most of the fuel to get her down to a weight that would allow departure.