The air compressor sound is synched with the RPM of the prime mover

This is a Walthers 949-8351 HO K-Line 40' Hi Cube Smooth Side Reefer Container

Model Number: 033011

Model Number: 79478

Trainz Product Id: 12492002

USA Trains 15113 G Shell 10,000-Gallon Tank Car Orange DwDetails-0.51-0.45-9.15-6.15-5.15-2 The air compressor sound isThis is a USA Trains 15113 G Shell 10,000 Gallon Tank Car Orange. Cars feature brass railings, detailed brake system and metal wheels. Cars are Kadee coupler compatible. Approximate length: 15. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: USA Trains Model Number: 15113 Road Name: Shell Oil (SOEX SCCX SCMX SPMX) MSRP: $164. 95 Scale Era: G Scale Model Type: Freight Cars The Trainz SKU for this item