Sailing cruisers
Billings do a kit of a Colin Archer type gaff ketch and in the blurb for the kit mention rudder and propellor, so they obviously expect her to be motored as well as sailed.
I have seen one or two auxiliary yachts but my guess is that they were scratch built and I am currently building an auxiliary model Thames Barge, which I suppose counts roughly as a yacht.
Cheers, Nerys
When the winds before the rain, soon you may make sail again, but when the rain's before the wind, tops'l sheets and halyards mind