2-8-8-4 wheels. The locomotive's superstructure was attached to the rear group, while the forward group and leading truck could swing laterally on curves. All Yellowstones had fairly small drivers of . (For greater speeds, the Union Pacific Railroad chose a four-wheel leading truck and drivers of for its Big Boy 4-8-8-4 class.) Several classes of Yellowstone, especially the Duluth, Missabe and Iron Range's locomotives, are among the largest steam locomotives, with the exact ranking depending on the criteria used. The Northern Pacific Railway was the first railroad to order a 2-8-8-4. The first was built in 1928 by American Locomotive Company;
Quavers shown in 1996 (animated by Aardman), which featured Quentin trying to catch a Quaver that had blown out of his bedroom window, ending with the slogan "They're floaty light!" Quavers Quavers are a British snack food, originally made by Smiths, and now produced by Walkers. Walkers, owned by PepsiCo, purchased the Quavers brand in 1997, when it became one of the Frito Lay International brand names. Quavers were launched in 1968 with the advertising slogan "you get a lovely lot of Quavers in a bag". Packaging described them as "curly potato puffs". In 2007, Walkers changed the packaging for all