N Atlas Trinity PD5000 Covered Hopper Norfolk Southern #292017 - 50005685 Power Pack #25424 Cab #166 w/Snd Exec

#25424 Cab #166 w/Snd Exec

A prototype of the turret had been build until January 1945

taillights

radar antennae

allowing enthusiasts to expand the size and shape of their Auto World slot car track layouts

N Atlas Trinity PD5000 Covered Hopper Norfolk Southern #292017 - 50005685 Power Pack #25424 Cab #166 w/Snd ExecThe Pressure Differential, or PD covered hopper was designed as a competitor to the General American Transportation Airslide hopper in the early 1970s to transport light, powdered materials. Unlike the Airslide, which forced pressurized air up through a fabric liner to help fluidize the cargo, the PS series of hoppers applied both a positive pressure of about 15 lbs. psi above the outlets as well as a vacuum at the outlet to help draw the cargo from