In Australia, various paddlers were converted to screw.
I am enclosed a photo of a vessel which went the other way: screw to paddle.
In logging in, the random photo was of a very long-lean paddlesteamer, so I grabbed it too.
If full size can do it, why not a model?
AFAIK Hebe and Leo were very similar, and there were others of the style. They were cane tugs on northern NSW rivers.
Generally, Australian paddlesteamers were stumpy rather than lean. I gather that this was for towing stability, and particularly cornering stability in currents.
The notable greyhound PS Ruby was lean, and used barrels of water rolled on each corner for stability, but it was also a three-deck vessel.
Duck Flat was quite happy to build a paddle version of my Tennessee hull (9 m long, 1.8 m beam, 10 cm draft, a 5:1 aspect ratio), without fears re stability.
Roderick B Smith
Rail News Victoria Editor