Arrowhead Models PC, Scheme Set #A, Committee Hopper ARR-1008-2Arrowhead Models Penn Central, Paint Scheme Set #A, Committee Design Hopper ARR 1008 2 Part Number: ARR10081 2 Description ARR 1008 2 Road Number 443686 Arrowhead Models Penn Central, Paint Scheme Set #A, Committee Design Hopper About the Prototype: The Committee Design hopper is the most important open hopper on the Penn Central railroad. The car was developed as a joint effort between the Pennsylvania, Norfolk & Western and Chesapeake and Ohio