30-73571 O Gauge RailKing 3-Dome Tank Car For availability see 'Find it locally' tab $59.95Product InformationDescription3-Dome Tank Car - Pennsylvania Car No. 498720 Roadname: PennsylvaniaProduct Item Number: 30-73571Catalog: FG 2020 RTR CatalogProduct Line: RailKingScale: O GaugeDelivery Status: Delivered: JAN 2021This product is compatible with all O Gauge 3-Rail track systems including those systems offered by Atlas and Gargraves and Lionel and Ross Custom Switches. OverviewThree-dome tank cars were actually three complete tanks on a single car body. Each tank had its own end bulkheads and expansion dome. Since older tank cars were filled to the top of the tank to prevent fluids from sloshing around during shipment (which could make the car unsteady), the domes provided space for the cargo to expand when the sun heated the tank. Because the additional bulkheads and domes added weight, multiple-dome cars had a smaller capacity than single-dome cars. These cars were popular with customers who needed several varieties of a single product, such as different grades of lube oil or gasoline. They were also used for customers who did not need a full car of product. While smaller-volume shipments have largely gone over to truckers today, Union Tank Car built new multiple-compartment cars as recently as 2010. They're harder to spot in today's trains, however, because modern tank cars do not have expansion domes. High quality, traditionally sized RailKing Freight Cars provide detailed bodies and colorful paint schemes for the O Gauge railroader. MTH makes an enormous variety of RailKing Freight Cars, including many different car types and roadnames. No matter what era or part of the country you are modeling, RailKing is sure to have something for you. Features Intricately Detailed, Durable ABS Body Colorful, Attractive Paint Scheme Metal Wheels and Axles Die-Cast 4-Wheel Trucks Fast-Angle Wheel Sets Needle-Point Axles (2) Operating Die-Cast Metal Couplers Detailed Brake Wheel Separate Metal Handrails Near-Scale Proportions Unit Measures: 10 1/4" x 2 3/8" x 3 9/16" Operates On O-27 Curves Find It LocallyThis product may not have shipped yet or is completely sold out. Click on the show button to see who might have it on order. Support