4-8-4+4-8-4 classes of 4-8-4+4-8-4 steam locomotives across the globe, all of which were constructed by Beyer, Peacock and Company, the owners of the Garratt patent. The predecessor 4-8-2+2-8-4 Double Mountain was probably the optimal Garratt wheel arrangement, with the four-wheeled leading bogies and the two-wheeled trailing trucks on each engine unit ensuring stability at speed and with sixteen coupled wheels for traction. More coupled wheels would inhibit the locomotive on tight curves, while the only advantage of more non-coupled wheels, such as on the Double Northern, was to reduce the axle loading. The second Double Northern locomotive class were the AD60
Quavers their Cheese flavour and 86 in the salt and vinegar variety. There was also a Cheese and Onion flavour in the 1980s which, although proved very popular, was discontinued. The first mascot of Quavers was a hyperactive cartoon dog named 'Colin Curly', created by Bob Lawrie and voiced by Lenny Henry who featured in many TV commercials. Colin also appeared in two Amiga and Atari ST puzzle games: "Pushover" (1992) and its sequel, "One Step Beyond" (1993), both published by Ocean. The second was a boy named Quentin Quaverhead and his family. They were first seen in a memorable advertisement