Western Maryland Alco RS-3
O Scale by Sunset Models 3rd Rail
 
Standard Hood & Hammerhead Versions Offered
 
3rd Rail brings the WM RS-3 to O Scale with both as-built standard hood and the distinctive hammerhead rebuilds, allowing modelers to accurately represent multiple eras of Western Maryland operation.
 
Versions Offered
Standard Hood RS-3
Represents the locomotives as delivered from Alco, ideal for early diesel-era layouts and transition-period operation.
Road Numbers Offered:
WM 188 Fireball
WM 186 Fireball
WM 191 Fireball
WM 195 Speed Lettering
WM 198 Speed Lettering
WM 187 Speed Lettering
 
Hammerhead RS-3
Road Numbers Offered:
WM 194 Fireball/Speed
WM 192 Fireball/Speed
WM 197 Fireball/Speed
 
Model Features
High-detail plastic body with accurate RS-3 proportions and hood profiles (by version)
Correct cab, hood, and short-hood tooling for both standard and hammerhead variants
Die-cast metal chassis and trucks for proper weight and smooth operation
Separately applied detail parts including handrails, grab irons, horns, and lift rings
Detailed cab interior with crew figures where appropriate
Crisp factory-applied paint and lettering matched to Western Maryland practice
Advanced electronics: 3R ERR Cruise/TMCC/Railsounds compatible with TMCC/Legacy/DCS, 3R Conventional for your choice of sound, and 2R ESU Loksound 5.0. 
Blunami available as an optional upgrade in both 2-Rail and 3-Rail, operating independently via the Apple or Android app
 
A Signature WM Diesel
Whether switching coal branches, leading locals, or handling road freight, the Western Maryland RS-3 is an essential diesel for any serious WM roster. With both early and rebuilt versions available, this release allows you to model the railroad exactly as it ran—across decades of service and change.