N Atlas Trinity PD5000 Covered Hopper FCC Catalysts [NAHX] #550340 - 50005674 Blades & Carving such as continuous dives

such as continuous dives

000 feet (305 meters) in the sky

Built-In Warm white LED (can be disabled)

9" T (Suitable for HO/N Scales)

-produced cars and those from the subsidiary in Germany

N Atlas Trinity PD5000 Covered Hopper FCC Catalysts [NAHX] #550340 - 50005674 Blades & Carving such as continuous divesThe 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