If it were done to O Scale with correct curve radiuses how large would it be? The La Mesa Model Railroad club at the San Diego Model Railroad Museum have an HO scale layout set around the route the Tehachapi Loop takes. They're just about 20-40 miles short of having the whole route. So the O scale version o the Tehachapi loop would need o be about twice the size of they're loop. What would it be, 12x12, 15x15, or 24x24. It's would just be a big helix and those eat up space.
Original Post
