Class One Model Works LM00106 EMD GP40 1A3 Baltimore & Ohio B&O 3686 - DCC & Sound X-Maxx Castle Creations 010-0155-00 Mamba X

Castle Creations 010-0155-00 Mamba X 25

and superstructure details

The J variant received a modified

25" (133 mm)

Class One Model Works LM00106 EMD GP40 1A3 Baltimore & Ohio B&O 3686 - DCC & Sound X-Maxx Castle Creations 010-0155-00 Mamba XClass One Model Works LM00106 EMD GP40 1A3 Baltimore & Ohio B&O 3686 DCC & Sound This Class One Model Works release captures the distinctive 1A3 modernization program applied to classic second generation EMD road power. The prototype reflects the long service life of the GP40 design, upgraded through mechanical and electrical improvements to extend its usefulness on demanding mountain and mainline freight assignments. FEATURES: Fully Assembled