Here's what I could find. Not real up on the David Brown's but the newer ones such as the 990 and 1210 were popular here.
"The David Brown 2D. Just 2,008 of this model were made from 1956-61. Featuring a two cylinder, air-cooled, 12 hp diesel engine, the 2D was designed for smaller applications. Instead of hydraulics, it uses compressed air. It pushes implements, rather than pulls them. And it has a very small turning area: It can turn in nearly its own length."
A forum community dedicated to Antique & Classic Tractor owners and enthusiasts. Come join the discussion about classic restorations, references, modifications, classifieds, troubleshooting, maintenance, and more!