History: 1911 thru 1917 70 ton H21a
"quad" hoppers were introduced for coal service. During 1922 and
1923 all early H21 hoppers were converted to H21a's by replacing the 50
ton trucks with 70 ton trucks equiping them for coal service and bringing
the total to 36,000 H21a hopper cars. The original 1909 thru 1930 quad hoppers
were built with the "old style" double door hopper. During the
1930's and early 1940's all old style double-door hoppers were replaced
with the "saw tooth" hopper, increasing capacity by 39 to 40 cubic
feet making them easier to maintain.
The history of
the Pennsylvania Railroad rolling stock lettering is as follows:
Circle Keystone Lettering
Shadow Keystone lettering
Plain Keystone (black car)
PRR Initials started.
Kit Includes: Injection molded plastic
body, hopper doors, wine door latches with door bracing, coal load, interior
bracing, end mounted brake wheel or top mounted brake wheel, X2f couplers,
one piece molded trucks, and 33" chilled wheels with RP-25 flanges
on brass axles. The production molds were made using the original
PRR drawings as our guide.
Associated Equipment Available: Add
coal loads made by Blue Mountain to your hopper car rolling stock. Two loads
are included in each package.
Ordering: You can order any quantity. Different
road numbers are available indicated by the following keys in the "Description":
we have 3 road numbers available if the first letter is a plus sign [+]
and we have 12 road numbers if the first letter is an asterisk [*]
Listing of Available Models and Associated Car Numbers: The list
below identifies the cars and roadnames that are currently available. Underlined
part numbers have pictures available for you to see on-line by clicking on part
number. Please note that each production run of a roadname uses a new series
of car numbers. We do not re-use a previous numbering series for any subsequent
production run. Thus, we only can fill orders for the most current production
run and associated numbering series. Please refer to our list of PRR H21 4-Bay Hopper Cars car numbers that have be used and the current numbers which are available.