WALTHERS
Ready-To-Run
HO Scale
Operating Dynamometer Car
Ready to Run --
Nickel Plate Road (Pullman Green, Dulux Gold)
On-BOARD Measuring equipment tests your Locomotives Pulling Power.
Now, you can measure the power of your motive power with Walthers all-new, working Dynamometer Car in HO Scale. Based on a typical 1920s era design, it comes fully assembled with on-board measuring equipment to determine pulling power.
Out-Of-Production
DISCONTINUED By the Manufacturer
Lettered for the:
NICKEL PLATE ROAD
*ALL-NEW READY-TO-RUN MODEL
*DETAILED INTERIOR
*ALL-WHEEL ELECTRICAL PICK-UP
*WIRE GRAB IRONS
Bigger, faster, heavier, better. As new steam locos made their way from the drawing boards to the ready track in the teens and 1920s, and older engines were modernized with new devices, railroads needed a way to accurately measure their performance. The answer was the Dynamometer Car, a specialized rolling railroad laboratory. Equipped with a large dynamometer to measure pulling power, other instruments were added as needed to measure a wide range of data while the engines were working in freight or passenger service. Armed with this information, company engineers provided detailed performance data that increased efficiency and lowered costs. Larger railroads often owned their own cars, and leased them to smaller lines as needed. Engine builders also had dynamometer cars as did some universities with railroad engineering programs. When diesels came, the cars were simply upgraded with the latest equipment and many were in service for decades; some are still in use today!
Now, you can measure the power of your motive power with Walthers all-new, working Dynamometer Car in HO Scale. Based on a typical 1920s era design, it comes fully assembled with on-board measuring equipment to determine pulling power.
Handsomely painted and lettered like the prototypes this car will be a conversation piece in any train. Loaded with add-on details, including a full interior and underbody, the car also has molded starter points to accept standard size wire grab irons (sold separately) if desired.
HISTORY :
A dynamometer car is a railroad maintenance of way car used for measuring various aspects of a locomotive's performance. Measurements include tractive effort (pulling force), power, top speed, etc.
History
The first dynamometer car was probably one built in about 1838 by the "Father of Computing" Charles Babbage. Working for the Great Western Railway of Great Britain, he equipped a passenger carriage to be placed between an engine and train and record data on a continuously moving roll of paper. The recorded data included the pulling force of the engine, a plot of the path of the carriage and the vertical shake of the carriage. The work was undertaken to help support the position of the Great Western Railway in the controversy over standardizing the British track gauge.
In the United States, the Pennsylvania Railroad began using dynamometer cars in the 1860s. The first modern dynamometer car in the United States was built in 1874 by P. H. Dudley for the New York Central Railroad.
The early cars used a system of springs and mechanical linkages to effectively use the front coupler on the car as a scale and directly measure the force on the coupler. The car would also have a means to measure the speed of the train. Later versions used a hydraulic cylinder and line to transmit the force to the recording device.
Usage
While the principal purpose of the dynamometer car was to measure the power output of locomotive, other data were typically collected, such as smoke box data, throttle settings and valve cut offs, fuel burn rates, and water usage to determine the overall performance and efficiency of the locomotive.
Data would typically be recorded on time-indexed continuous paper recording rolls for the pull and velocity. Power would later be manually calculated from these data on early cars. Some later cars were equipped with a mechanical integrator to directly record the power.
A separate use for the car was to test a particular rail route to rate it for tonnage based on a run with a dynamometer car and recording the effect of the grades and curvature on the capacity and resulting power requirements for that line
Features:
* Die Cast Chassis
* RP-25 Metal Wheels
* All-Wheel Electrical Pickup
* Proto MAX(TM) Metal Knuckle Couplers
FEATURES:
Accurately Scaled from engineering Drawings
Crisp, Detailed, realistic lettering
Lettering Matched to prototype photographs
REALISTIC Satin paint finish
Standard Draft gear box
Detailed engineering plastic truck sideframes
No lubrication required
Machined-Metal Wheels
Magneticaly operated, body mounted couplers
Added Weight for optimum tracking
VERY HARD TO FIND
ITEM
We do combine shipping on
multiple purchases. If you do a Buy It
Now the transaction requires immediate payment for each item separately.
What you need to do is put it in the shopping cart and then
when you go to checkout it will recalculate the shipping and combine the items
for you.
If you pay first I am unable to make any adjustment because
ebay has then taken its fees on the shipping as well. If you have a concern message me and I can
work something out for you.
THIS IS AN ASSEMBLED Item
The item is NEW in the original box from old stock
PERSONAL INVENTORY:
Many of these unique items are from my personal inventory
which was accumulated over the years.
They are hard to part with but due to downsizing in retirement they too
are looking for a good home which can appreciate and enjoy them.
STORE INVENTORY:
Having discontinued my Hobby Store and left frigid
“Minne-Snow-Da” I have relocated and retired to the warmer part of the country,
Down to Sunny TEXAS.
I will be Liquidating the remaining stock.
I will be listing items over the next year or so clearing
them out.
Please see the photos we take actual photos of each item
Most of these items are New in the box removed only to take
photos of them.