Walthers HO 920-43310 - Proto - EMD GP35 Diesel Locomotive ”St. Louis & San Francisco" #728 w/ LokSound 5 Sound (Frisco) Phase II

• Road Name: St. Louis & San Francisco (Frisco)
• Road Number: 728
• Product Line: Proto
• Scale: HO Scale

Features:

• LED constant & directional headlights
•  Easy multiple-unit operation
•  Correct size RP-25 metal wheels
• Proto MAX™ metal knuckle couplers

Based on units built after mid-1965 - many still in service

• Road-specific details
• See-through steps
• See-through radiator & dynamic brake fans w/etched brass grilles
• Nose-mounted lever-style handbrake
• Front & Rear (as appropriate) class lights w/separate clear lenses
• Photo-etched small metal lift rings
• Detailed cab interior with crew figures
• Separately applied details, including coupler cut levers, m.u. hoses, brake and underbody details

• This model is equipped with fully featured ESU LokSound 5 Sound and DCC for DCC or DC layouts
• Top of the line DCC Sound 
  
• Fully customizable sound and performance 
  
• Compatible with ESU LokProgrammer 
  
• And much more!

Same powerful drive as WalthersProto® locos

• Five-pole skew-wound motor
• 14:1 gear ratio
• Helical-cut gears for quiet operation and easy multiple unit operation
• All-wheel drive and electrical pickup
• Dual machined brass flywheels
  
• Heavy die-cast metal chassis

Overview:

Make one of EMD's most popular road switchers part of your diesel fleet with the WalthersProto® GP35!
 
Making its debut in 1963, the new engine would pave the way for future generations of hood units. Offering 2500 horsepower and a number of innovative new features, many were purchased as replacements for elderly diesels, and since EMD took trade-ins, some were constructed with rebuilt parts, notably trucks, from other builders! Along with these variations, modelers and railfans noted other changes made during the production run and began referring to early examples as Phase I (also known as Phase 1) while those built after mid-1965 became Phase II (also known as Phase 2); EMD however considered them all the same model and never used these designations. By the time production ended in 1966, over 1300 were in service, and many are still running on shortlines and at museums in 2024.