HO Bowser H21 Hopper Car Pennsylvania-Circle Keystone Road #188355 - 43027 Train Sets the Bücker Bu 131 Jungmann

the Bücker Bu 131 Jungmann

Many of the parts are products of slide molds to ensure maximum detail is rendered and to guarantee easy assembly

Separately applied air horn

which is particularly important to overcome enemy anti-aircraft fire

a factory-stock four-barrel carburetor setup

HO Bowser H21 Hopper Car Pennsylvania-Circle Keystone Road #188355 - 43027 Train Sets the Bücker Bu 131 Jungmann1911 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 equipping 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