EMD's "50 Series" diesel locomotives of the mid-1980s were the product
of the most extensive testing in the company's 50-year history. Both the
four-axle, four-motor GP50 and the six-axle, six-motor SD50 utilized a new
control system that substantially increased hauling capacity and reduced engine
noise levels.
The 3500 hp SD50 measured just 30" longer than the SD40-2 it replaced
but differed substantially in appearance. Gone were the front and rear
"porches" of the SD40-2 and the dynamic brake blisters on the sides of
its hood. Under the SD50's longer hood, the dynamic brakes, which generate a lot
of heat, were relocated from a position over the hot engine to a cleaner, cooler
area just behind the cab.
The SD50 also introduced EMD's new "Super Series" control system,
which included a radar unit for measuring true ground speed and electronic
monitoring of the electrical equipment. A primary benefit of the new control
system was its ability to maximize rail adhesion by automatically applying short
bursts of sand as needed to maintain traction. The system allowed three SD50s to
do the work of four older locomotives.
FEATURES:
- ProtoSound® 2.0 Digital Sound with Digital Command System, Speed &
Light Control, Diagnostic Memory, Remotely controlled ProtoCouplers® and Freight Yard
ProtoEffects™ sounds
(see more below)
- Operating ProtoSmoke™ diesel exhaust smoke
- 2-precision flywheel equipped motors
- All-metal wheels & gears
- Compatible with most AC transformers
- ProtoSound® electronic reverse unit
- Die-cast 4-wheel trucks
- Intricately detailed ABS body
- Directional constant voltage headlights
- Lighted marker lights
- Die-cast trucksides, pilot & fuel tank
- Metal handrails & decorative horn
- Lighted cab interior
- Illuminated number boards
- 2-Cab engineer figures
- Remote controlled Proto-Couplers®
- Stamped metal floor
- Operates on O-42 or greater curves (3-rail)
- Proto-Scale 3-2-3-Rail/2-Rail conversion capable
- Length: 18"
ProtoSound® 2.0 Features
ProtoSound® 2.0 makes the most technologically advanced locomotive on the
market. Locomotives equipped with this sound & train control system offer
tremendous expandability. They offer more features right out of the box than any
other engines, & when paired with the DCS Digital Command System they offer
features other manufacturers cannot begin to compete with. ProtoSound 2.0 is
perfect for people who love technology & how it multiplies their fun.
Right out of the box, ProtoSound® 2.0 engines deliver:
- Horn, bell and locomotive digital sound effects
- Sound effects including Freight Yard Sounds and cab chatter
- Speed control equipped to eliminate throttle adjustments and make for
smooth starts and stops
- Remotely controlled operating couplers to release cars on the fly (no
operating track needed)
- Wide range of State-of-the-Art digital sounds
- Add hundreds of features when operated with DCS
This engine has been track tested to make sure that it is in proper operating
condition.
