I've been thinking about how best to use the baseboards. With eight 1200mm by 400mm boards I can put one at each end crosswise and three between them front and back with a narrow opening between font and back of 400mm by 3,600mm. The three front boards will be fully scenicked, the two end boards, partly so with minimum radius curves around to the back three boards which will be storage loop sidings for each direction of travel.
Now I can just about squeeze into that gap but ideally it would be better used as a drop in scenic filler using lightweight materials. This would give a total footprint of 4,400mm by 1,200mm. This will fit into my motor house once the 1935 Riley Kestrel is refurbished and sold and still give plenty of workshop area.
The question is, though, what minimum radius should I be considering. Often this radius is considered to be around 360mm/15" for HO, or R1, but will this work? I think some testing will be necessary. Scenic breaks are also a problem for the area being modelled. Very few bridges, mostly grade crossings, absolutely no tunnels, leaving trees and possible buildings as the best options. Loblolly pines are indigenous and grow to a good height before being felled by a tornado or hurricane. Live oaks also keep their leaves all winter and can grow to a good size.
This screenshot along the old SP double track main line shows today's scenery. It would have been different 70 years ago, with warehouses and sidings on the left side of the tracks and possibly fewer trees as this area has been gentrified since I left Houston.
This view is looking west toward Eureka Junction. I am thinking of having a freight storage loop on the right side and an access loop to several sidings on the left side. The front of the baseboard would be where the nearest car is parked, so a clear view of passing trains except at the bends where trees could act as a mask.
As I am "new" to HO, what do others think of a minimum radius? Speed is not really a concern in this near city centre setting.