Herzogenaurach the 210th Field Artillery Brigade on 16 September 1980) which occupied Herzo Base until 1992. Then Herzo Base was included in the base closure plan. On 4 August 1992, the installation was officially returned to the German Government. It has since served as a civilian recreational airfield, with ICAO code EDQH. Herzogenaurach is twinned with: Herzogenaurach Herzogenaurach (; East Franconian: "Herziaura") is a town in the district of Erlangen-Höchstadt, in Bavaria, Germany. It is best known for being the home of the sporting goods companies Adidas and Puma, as well as the large car parts manufacturer Schaeffler Group. Herzogenaurach is
Sand-based athletic fields Standard Guide for Construction of High Performance Sand-Based Rootzones for Athletic Fields). The USGA specifications used for a sand-based athletic field are the same as what is typically used for USGA golf greens. These specifications consist of a 12 to 16 inch sand root zone. The choice of sand type and the addition of an amendment depend on the designer. When an amendment is used, it must be thoroughly incorporated with the sand. The sand overlays a 4-inch gravel layer. This creates a perched water table above the gravel that helps keep the root zone moist during dry conditions. A